eChapters

A watershed is a geohydrological unit or all the land and water area bounded by a divide which contributes runoff to a common point. Watershed is considered to be synonymous with ‘catchment basin’ and ‘drainage basin’. In watershed management approach, development is not only confined to agricultural lands but also covers the area, starting from the highest point of the land to the outlet of the natural stream. Watershed management becomes increasingly important as a way to improve livelihood of people while conserving and regenerating their natural resources.

Watershed management is the process of creating and implementing plans, programmes and projects to sustain and enhance watershed functions that affect the plant, animal and human communities within a watershed boundary. It implies the judicious use of all the resources, i.e., land, water and vegetation in an area to prevent soil erosion, improve water availability and increase food, fodder, fuel and timber on sustained basis.

ABSTRACT

Eastern Uttar Pradesh has 27 districts and lowest per capita net domestic output then other regions of the state. Rainfall is the only source of water. Acute shortage of fuel, fodder and timber makes agroforestry an important proposition for this region. The paper presents different agroforestry models developed by Allahabad Agriculture Institute for the region. Economics of the prominent agroforestry systems has been worked out. Emerging innovative agroforestry practices like aqua farming, honey bee, sericulture are discussed. Recommended species and agroforestry models for utilizing wastelands of the region are also provided.

INTRODUCTION

Eastern Uttar Pradesh covers an area of 87,840 sq. km. ranging from 24° - 28°20’ N latitude and 81° - 85° E longitude (map of Eastern U.P.) with population of 632 lakhs (Census, 2001). It has 27 districts and the lowest per capital net domestic output than other regions of U.P. It has 6 districts which are under developed and 15 districts are industrially backward. The contour of 100m roughly marks the western limit of Eastern Uttar Pradesh. It is mostly filled with deep alluvial deposits by the Ganga and tributaries. The Microregional variations are highlighted by the Bangar (the old alluvium) and the Khedar (new alluvium) formations. It enjoys tropical humid climate (rainfall varying from 120 cm to 140 cm). This region is plaughed with recurring floods and droughts. In 1983 Eastern Uttar Pradesh suffered a loss of the order of Rs. 319.12 crores because of the floods; in the same region, drought due to long dry spells left 3.820 lakhs ha. of sown area to wither. The menancing of Ganga – Ghaghara, Doab and recurring drought of trans Yamuna tract of Allahabad district, parts of Mirzapur and Varansi districts and big chunks of usar and unculturable wasteland (2.93 lakh ha) sap agricultural potential of these areas. Hardly 9.54 percent of total geographical area is under forests. Their paucity accenulates the problems of floods and soil erosion. Most Ganga plain is devoid of mineral wealth excepting kankar in Bhanagar tracts, but southern uplands are rich in minerals like limestone, dolomite, silica, sands, marble, building stone, magnesite and coal; organic matter is rich but nitrogen is deficient. Despite of vast water resources percentage of irrigated to gross cropped area is only 40.36 per cent that led cropping intensity only 145.20 and net irrigated to net sown area is 54.22 per cent. It has depressed economy where unemployment and underemployment is rampant, thus out migration is a typical phenomena.

INTRODUCTION

The North-Eastern Himalayas comprise of eastern-Nepal, entire Bhutan, parts of North Bengal and the eight states of North-East India viz. Arunachal Pradesh, Assam, Meghalaya, Mizoram, Nagaland, Manipur, Sikkim and Tripura. The region is characterised by diverse agro-climatic and geographical situations. This has a predominantly humid sub-tropical climate with hot, humid summers, severe monsoons and mild winters. The total forest covering this part of India is 17.50 m ha (which includes 8 NE states and hills of West Bengal) which is about 65.94 per cent of the total geographical area (FSI 2013), and the rest either under crops or non-agricultural uses or un-cultivated land. The low area under agricultural crops is due to natural corollary of the physiographic features of the region, as major chunk of the land has more than 15 per cent slope, undulating topography, highly eroded and degraded soils, and inaccessible terrain. Continuous depletion of the forest cover in the region due to shifting cultivation, firewood, and timber collection is posing the most crucial problem resulting in poor soil health and the resultant environmental degradation. In order to overcome these problems the farmers of the Eastern Himalaya have evolved various types of crop rotations in consonance with the varied environmental conditions and agronomic requirements with tradition by practising different approaches since ages. These practices so developed through major and minor adjustments in land use strategies are mostly sustainable from ecological point of view (Dash and Mishra 2001). 
The practises of agroforestry in this region exhibit a great deal of variation in crop diversity which is influenced by the crop composition and crop rotation. Along an altitudinal gradient, diversity in agroforestry practices is influenced by variation in ecological factors and difference in agricultural practices. Agroforestry has the potential to improve livelihood as it offers multiple alternatives and opportunities to farmers to improve farm production and income and also provides productive and protective (biological diversity, healthy ecosystems, protection of soil and water resources, terrestrial carbon storage) forest functions to the ecosystems. It is accepted as the sustainable management system that encompasses the variety and variability of animals, plants and micro-organisms which can be combined together to derive key functions of the agro-ecosystem, its structure and processes for, and in support of food production and food security. It is promoted widely as a sustainability-enhancing practice that combines the best attributes of forestry and agriculture. This practice is now recognized widely as an applied science and is instrumental in assuring food security, reducing poverty and enhancing ecosystem resilience at the scale of thousands of smallholder farmers in the tropics (Sharma et al. 2007). Therefore, strengthening linkages between knowledge systems using “Community” participatory management approaches is now seen as critical for sustainable forestry and agroforestry systems (Adhikari et al. 2007; Dhakal et al. 2007; Ramakrishnan 2007). 
The mountain communities of eastern Himalayan regions have also adopted diverse agroforestry systems as their land use. Environmental, biological, socio-cultural and economic variation existing in the eastern Himalayas have led to the evolution of diverse and unique traditional agro-ecosystems, crop species and livestock, which facilitate the traditional mountain farming societies to sustain themselves. Appropriate agroforestry systems have the potential to check soil erosion, maintain soil organic matter and physical characteristics, augment nitrogen build-up through nitrogen fixing trees and promote efficient nutrient cycling (Patiram et al. 2003).These systems have today become an established approach of integrated land management system not only for renewable resource production but also for ecological consideration (Saha et al. 2012).

ABSTRACT

The paper introduces the biophysical environment and landuse pattern of newly formed state. On the basis of ownership of land the scope of adopting agroforestry had been discussed. Existing agroforestry systems under different agroclimatic zones of Uttaranchal are provided with examples. Tree improvement program and system development research carried out under AICRP on Agroforestry for Terai zone of the state has also been discuused in the paper. Constraints in adopting and carrying out research in agroforestry along with future strategies to extend agroforestry in Uttaranchal are also given in the paper.

INTRODUCTION

Uttaranchal, formed on November 9, 2000, is the 27^th state in India. The state is spread over 53,483 km² of land, which extends between 77° 34’ and 81° 02’ E longitude and between 28° 43’ to 31° 27’ N latitude. It covers 1.67 per cent of the country’s total area and is home to 84.7 lakhs of people as per the provisional census report 2001. The entire state forms part of the Central Himalayas. The state is strategically located and forms part of the Northern boundary of the country sharing its borders with Nepal and China. The entire region, except the southern most foothills belt, is mountainous with a series of ridges and valleys. Starting with an altitude of about 240 m in the tarai on the southern fringes, the terrains rise to 7817 m in the north with in a short width span of about 160 km. It touches Tibet in the north, Himachal in the west and northwest, gangetic plains of Uttar Pradesh in the South and Nepal in the east. Uttaranchal has two administrative divisons, the western half known as Garhwal and the the eastern region known by the name of Kumaon.

ABSTRACT

Modelling has been used in natural sciences since centuries in one-way or the other. However, system modelling as a discipline in itself is established in the recent years. Agroforestry modelling is a complex process that essentially involves at least two elements viz. tree and crop, where tree is the long term and crop is the short-term component. Agroforestry models, usually, predict tree growth and yield and the reduction/enhancement in crop yield as influenced by the tree component in temporal and spatial sequence. In this paper the need of modeling, stages of model development, its validation and classification of models are given. The models, which are relevant to agroforestry, have also been given.

INTRODUCTION

Agroforestry combines agriculture and forestry technologies to create more integrated, diverse, productive, profitable, healthy and sustainable land use systems. According to the Association for Temperate Agroforestry - “Agroforestry practices are intentional combinations of trees with crops and/ or livestock that involve intensive management of the interactions between the components as an integrated agroecosystem”. These key characteristics are the essence of agroforestry and are what distinguish it from other farming or forestry practices. To be called agroforestry, a land use practice must satisfy all of these criteria:

Agroforestry is a land use system that involves two or more plant species at least one of which must be a woody perennial. When perennial woody and herbaceous components are grown together on the same piece of land their performance would largely depend on their ability to share various growth resources in a given environmental situation. Due to difference in growth pattern and resource requirement of the components in agroforestry situation, a close interactive relation is obvious. Thus, careful management practices for the components are required to establish a successful agroforestry system. The characteristics of the trees and crops, and their interactions, can be modified with good management practices in order to take advantage of the positive characteristics and minimize the effects of the negative ones. Effective and efficient agroforestry management may be divided into two groups; tree management and agricultural crop management.

FACTORS AFFECTING THE SELECTION OF TREE SPECIES

Trees in an agroforestry system contribute significantly to the total output of the system and therefore, success of the system depends on the selection of the tree species. The following factors are to be considered to choose the best tree species for the agroforestry systems in a particular site.

Agroforestry is a land use system that involves two or more plant species at least one of which must be a woody perennial. When perennial woody and herbaceous components are grown together on the same piece of land their performance would largely depend on their ability to share various growth resources in a given environmental situation. Due to difference in growth pattern and resource requirement of the components in agroforestry situation, a close interactive relation is obvious. Thus, careful management practices for the components are required to establish a successful agroforestry system. The characteristics of the trees and crops, and their interactions, can be modified with good management practices in order to take advantage of the positive characteristics and minimize the effects of the negative ones. Effective and efficient agroforestry management may be divided into two groups - tree management and agricultural crop management.

Factors Affecting The Selection Of Tree Species

Trees in an agroforestry system contribute significantly to the total output of the system and therefore, success of the system depends on the selection of the tree species. The following factors are to be considered to choose the best tree species for the agroforestry systems in a particular site.

Agroforestry is a land use system that involves two or more plant species at least one of which must be a woody perennial. When perennial woody and herbaceous components are grown together on the same piece of land their performance would largely depend on their ability to share various growth resources in a given environmental situation. Due to difference in growth pattern and resource requirement of the components in agroforestry situation, a close interactive relation is obvious. Thus, careful management practices for the components are required to establish a successful agroforestry system. The characteristics of the trees and crops, and their interactions, can be modified with good management practices in order to take advantage of the positive characteristics and minimize the effects of the negative ones. Effective and efficient agroforestry management may be divided into two groups; tree management and agricultural crop management.

Trees have been used in cropping systems since the beginning of agriculture. Throughout the world, at one period or another in its history, it has been the practice to cultivate tree species and agricultural crops in intimate combination. In the tropics, human beings underwent a transition from hunting/gathering to the use of domesticated plants and livestock. As a part of the process they cut down trees, cleared the debris by burning and sowed crops in the ash- enriched soil. It was the ‘slash-and-burn’ agriculture, a primary forerunner of the present day agroforestry and a practice that might have originated in the Neolithic period, around 7000 BC.

There are innumerable examples of traditional land-use practices involving combined production of trees and agricultural species on the same piece of land in many parts of the world. Trees were an integral part of these farming systems and they were deliberately retained on farmlands to support agriculture. These practices are now known as agroforestry. However, the ultimate objective of these practices was not tree production but food production.

ABSTRACT

The western part of India particularly Gujarat and Rajasthan received erratic and scanty rainfall and have sandy to sandy loam soil. In such climatic and edaphic conditions failure of crop is a regular phenomenon. In such situations a cropping system is required which can protect the associated crops from extremes of climatic condition and/or provide alternative/additional income. Agroforestry has such potentials; as a result lot of research had been done on agroforestry. This paper provides some of the agroforestry system and practices, which are suitable for Gujarat. The hurdles in adoption of agroforestry and its future prospects are also provided.

INTRODUCTION

North and North-West Gujarat fall under scarcity zone, where rainfall is inadequate as well as erratic in nature. Sandy loam soils with low moisture retention capacity pose problems of low and unstable crop production and degradation due to soil erosion. Under these situation, adoption of a high yielding, more remunerative, cost effective, compatible and multipurpose system ie Agroforestry is a dire necessity.

ABSTRACT

Chhattisgarh is a tribal dominating state and is one of the backward and poor area of India in terms of poverty and productivity. The trees have been the part of agriculture in this region since long. The present paper highlights some of the practices which are being adopted by the farmers from time immoral and efforts had been made to fit them in the present day scientific classification system of agroforestry system with their spatial and temporal sequences. Despite of the fact that trees are integral part of farmlands still adoption of agroforestry as a sustainable land use has some constrains which have been discussed and way out suggested. Areas needed in developing agroforestry in the state have also been discussed at the end of the chapter.

ABSTRACT

Agroforestry research and development in scientific mode in India started about thirty years ago with few individual scientists working on the aspect. However, concentrated efforts started with the establishment of a network under co-ordinated mode throughout the country in the year 1983. Since then lot of research has been done and recommendations made. The present paper compiles the chronological sequences of the starting of AICRP on AF along with its co-ordinating partners. Suitable perennial species and agroforestry systems recommended for respective agroclimatic zones of the country are also compiled. National seminars and group meeting conducted for popularizing and extending agroforestry to every corner of the country had also been provided.

INTRODUCTION

Agroforestry is an age old practice and was a way of life since the settled agriculture evolved from forest. However, with passage of time the cropping system was converted to monocropping and in the way the benefits of integrating the perennials with annuals were forgotten. In the late 70’s of 20^th century, benefits of integrating perennials in cropping system was again realized and efforts were diverted towards scientifically associating the perennials and annuals. Dr. M.S. Swaminathan an eminent scientist while addressing first agroforestry seminar at Imphal in 1979 stated that agroforestry lies the key solution of some of the problems of forestry “what is now important is to give a scientific context and better planning like a good architect who can plan the use of space more efficiently”. This seminar was a spark in the history of scientific agroforestry in India. Taking into account the vide variation in edaphic and climatic factors in India along with the perennial nature of the systems, it was felt that working in isolation would not yield fruitful results and therefore, an association of scientist and institutes of different agroclimatic regions in form of a network was felt imperative and a viable wayout and hence the birth of AICRP on Agroforestry. All India Co-ordinated Research Project on Agroforestry (AICRPAF) was initiated vide ICAR letter number 21(1)/80-SW & DF dated 7^th February, 1983 at 20 centers of which 12 centers were located in State Agricultural Universities and eight at the ICAR institutes. Later on more co-ordinating centers were added and at present there are 37 AICRPAF co-ordinating centers with 10 centers in ICAR institutes and 27 centers located in State Agriculture Universities covering all the major agroecological zones of the country. The coordinating unit of the project was initially located at ICAR, Krishi Bhawan, New Delhi, which was shifted to National Research Center for Agroforestry, Jhansi w.e.f. 1^st April, 1997 under the administrative control of Director, NRCAF.

ABSTRACT

More than 80 per cent area of the Shivaliks is rainfed. Soil erosion greater than 80 t ha^-1yr^-1 is being recorded from denuded hills. Though, trees are nurtured on the farms but no definite pattern of trees on field bunds is followed, (neither from spacing point of view nor from species point of view). Further, these trees are not silviculturally managed to get best output from tree components as well as for posing less competition to the crops. Shivaliks has a wide range of climate, geology, soil, topography and socio-economic strata coupled with wide variety of vegetation. Such variations provide ample opportunities for developing site specific agroforestry systems.

ABSTRACT

Maharashtra ranks second in terms of area under tree cover, however, still large chunk of land is lying without use or are underutilised because of their degradation status. Such degraded lands can be put to use through agroforestry. Agroforestry is being adopted in this state in one way or the other by raising trees on farm bunds, around cattle sheds etc. since earlier times. New innovative technology has now been developed by all the agricultural universities of state. The paper provides detailed information of different agroforestry systems which have been developed and practised in the state.

INTRODUCTION

Maharashtra is the third largest state of India having the geographical area of 307,713 km², which constitute 9.4 per cent of the country’s geographical area. The human population of the state is 96.75 million (9.4% of country’s population) of which 57.6 per cent is rural and 42.4 per cent is urban. The average population density is 314 persons per km². The tribal population is 9.3 per cent of the state population. The state supports livestock population of 36.4 million, which is 7.7 per cent of the country’s livestock population. The state rank second amongst all the state/UTs in terms of area under tree cover and third in term of recorded Forest Area (Anon, 2001).

The words ‘system’, ‘sub-system’ and ‘practice’ are commonly used in agroforestry literature. In a broad sense, a system is defined as a group of associated elements forming a unified whole and working together in a well defined regular relation for a common goal. An agroforestry system refers to a type of agroforestry land-use that extends over a locality to the extent of forming a land utilization type of the locality. Sub-system and practice are lower-order terms in the hierarchy with lesser magnitudes of role, content and complexity. However, these terms are used loosely, and almost synonymously.

Classification of agroforestry systems is necessary in order to understand and provide a practical framework for evaluating systems and developing action plans for their improvement. Any classification scheme should satisfy the following criteria (Nair, 2008).

ABSTRACT

Andhra Pradesh is predominently an agrarian state, where 70 per cent of the people live in rural areas. Andhra Pradesh has 7 Agroecological zones spread over in coastal Andhra, Telangana and Rayalaseema regions with varied climatic situations. The existing agroforestry systems in costal Andhra are Mango-based Agrihorticulture system, Betelvine-sesbania system, Borrasus flabellefer, Glyrecidia boundary plantations, Eucalyptus, Causarina and Subabul block plantations. Besides Neem, Tamarind and jamuns are also found in isolated manner. In Telangana region, Custard apple based Agrihorticulture system, Mango based Agrihorticulture system, Boundary plantations of Neem, teak, Jamun etc., are present. Eucalyptus based Agrisilviculture system is propagated by ITC, Bhadrachalam in Khammam and elsewhere in the state. In Rayalaseema region in all the districts tamarind, mango and sweet orange based agroforestry systems are prominently seen. The betelvine - sesbania system alone is fetching an income of 100 crores/year to the states’ exchequer. The common trees and tree systems available in the state are : Azadirachta indica, Tamarindus indica, Acacia nilotica, Pithecellobium dulce, Parkinsonia aculeata, Pterocarpus santalinus, Dalbergia latifolia and many others.

ABSTRACT

Haryana being predominantly agricultural state had only 2.86 per cent recorded forests at the time of its inception. Agroforestry has been an age old practice in Haryana as in other parts of India. It has existed in various forms through the time immemorial. Farm boundary plantation/natural regeneration and scattered trees in the farmlands were the main agroforestry interventions in Haryana till the seventies. To counter the environmental degradation and to provide fuel, fodder and timber different tree-crop combinations were tried for accessing their compatibility. As a result number of agroforestry systems had been recommended and are discussed in this paper. The paper also include methods of managing the perennial component of agroforestry system. Economics of some of the successful systems has also been discussed.

INTRODUCTION

Haryana state lies in the Indo-gangetic plains of North-west India. It has 44,212 sq.km of land and 90 per cent of this is in plains and the remaining area is in Shiwalik and Aravalli hills. Yamuna plains in the North and sandy plains in the South and West respectively have 50 per cent and 40 per cent of above land. More than 80 percent of the land is under agriculture. Canal and tube well irrigation is available for 65 per cent of arable land. Two crops per annum are a routine practice in Haryana. The climate of Haryana is arid, semi-arid and dry sub-humid. It is sub-tropical, continental and monsoonic type. The range of temperature daily as well as annual is extreme. It varies from 1°C in winter to 47°C in summer. Mean annual average temperature varies from 23°C to 26°C. May and June are the hottest months while December and January are the coldest ones. The normal annual rainfall ranges from 300 mm in the southwestern parts of Bhiwani, Hisar and Sirsa districts to about 1500 mm in the northeastern hilly tract of Ambala district. The mean daily pan evaporation ranges from 2.4 mm in December and January to 13.4 mm in May and June.

ABSTRACT

The paper gives a comprehensive detail of the state with regards to its inception, socio-economic, climatic and edaphic conditions. In addition states agroclimatic zones along with their characteristics have been described in the paper. Extent of agriculture crops, horticulture, animal husbandry, fisheries and forestry along with their production and contribution to national pool is provided elaborately. Details of agroforestry systems like silvipastoral and agrisilvipastoral for land with very high erosion and hortisilviculture and hortiagrisilviculture, aquaforestry, entomoforestry recommended for land with moderate to low erosion had been explained in details. Significant results obtained in agroforestry research under AICRP on Agroforestry and Horticulture and Agroforestry Research program have also been presented in this paper. Finally some tips to make agroforestry successful and future strategies have been given.

INTRODUCTION

Jharkhand state evolved as 28^th State on 15^th November 2000 from the southern part of Bihar, with a total area of 79.5 lakh ha and population density of 274/Km² consisting of 28 per cent schedule tribes and 12 per cent schedule caste population. A total of 29.61 per cent of the geographical area of the state consists of forest area with 28.4 per cent actual forest cover (Annon., 2001). Most of the forest area of the state consists of mines, which do not allow any agriculture. The continued large-scale mining operations of Coal and Iron ore are generating serious threats for the area coming under down streams. The areas lying under sharp undulating topography are under threats of soil erosion, which in turn affect the low lying water body’s carrying capacity i.e. due to continuous siltation, all such anomalies emphasizes the need to improve the water and land use efficiency in order to ensure better storage and retention of the rain water, for improving the productivity of the land.

ABSTRACT

Orissa is traditionally an agrarian state. It is endowed with vast natural resources, diversified agro-edaphic conditions,rich flora and fauna, wide range of land holdings, various socio-cultural groups and people with multiple economic strata. These factors have led to evolve a variety of agroforestry systems and practices. The traditional agroforestry systems which are prevailing in the state since time immemorial are broadly agrisilvicultural, silvipastoral and agrisilvipastoral systems. The prominent agrisilvicultural systems include podu/jhum cultivation, multipurpose trees on farm lands, multiple species tree gardens and agroforestry for fuel wood production. The important silvipastoral systems are trees on pasture, fodder trees and shrubs on forest land and live fence of fodder trees and shrubs. The very old agrihortisilvicultural system prevailing in the state is homegarden. Interventions of Orissa University of Agriculture and Technology and various Government and Non-Government agencies have resulted in the development of some improved agroforestry practices in recent years. Some of the improved agroforestry practices are Acacia mangium based agrisilvicultural practices, Guava based agrisilvicultural practices, coconut based agroforestry practices, Eucalyptus (Clonal) based agrisilvicultural practices, windbreaks, timber tree based agrisilvicultural practices, Sesbania grandiflora based agrisilvicultural practice, Acacia mangium based silvipastoral system, mangium-guava based silvipastoral practices, improved homegardens, commercial block plantations on farmlands and apisilvicultural practice.

ABSTRACT

West Bengal is the gateway to North-East and has diverse vegetation and social strata. The paper presents the agroclimatic zones of the state along with their characteristic features. The scenario with regard to agriculture, forest cover and livestock shows that practicing agroforestry is the need of the state. For the sake of convenience the state has been divided into two parts: south Bengal and north Bengal. In the tribal dominated parts of the state home gardens are prevalent. Possible interventions in the present land use along with strategies to increase tree cover under agroforestry has also been discussed.

INTRODUCTION

Cultivation of tree species and agricultural crops in intimate combination had been a practice through out the world at one period or another. Trees were integral and important component of the farming system. However, in the middle ages the concept changed and agriculture, forestry and animal husbandry were separated under a monoculture management system. This in long run led to an incredible reduction in forest cover and ecological imbalance. Scientists and managers once again began to think about changing the land use system and integrating trees with agriculture crops (Panwar et al., 2004). In India, research work on agroforestry was initiated during the late 1970’s by Indian Grassland and Fodder Research Institute, Jhansi; Central Soil and Water Conservation Research and Training Institute, Dehradun; Central Arid Zone Research Institute, Jodhpur and ICAR Research Complexes in isolation. National commission on agriculture also emphasized starting of agroforestry education in all agriculture university. The formal research activities related to agroforestry started in a big way with the initiation of All India Coordinated Research Project on Agroforestry (AICRPAF) from 7^th Feb., 1983 with 20 centers, of which 12 were in State Agricultural Universities and rest in ICAR Institutes. Later more centers were added. The major emphasis was to have research centers in all the major ecological zones of India. In this venture in the first phase AICRPAF was initiated in West Bengal at Jhargram, Distt. Midnapore under the auspices of the then only Agricultural University in West Bengal - Bidhan Chandra Krishi Viswavidyalaya, Mohanpur representing Humid and Subhumid zone of West Bengal.