Agroforestry in Sustainable Agricultural Systems
Louise E. Buck, James P. Lassoie, Erick C.M. Fernandes
CRC Press, 28 déc. 1998 - 432 pages
Agroforestry in Sustainable Agricultural Systems examines the environmental and social conditions that affect the roles and performance of trees in field- and forest-based agricultural production systems. Various types of ecological settings for agroforestry are analyzed within temperate and tropical regions. The roles of soil, water, light, nutrient and pest management in mixed, annual, woody perennial and livestock systems are discussed. Important new case studies from around the world offer innovative strategies that have been used successfully in raising forests and tree products on a sustainable basis for commercial harvesting and for providing other environmental services in land conservation and watershed management.
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Africa agricultural Agro Agrofor agroforestry research agroforestry systems alley cropping animals annual areas auxin biodiversity biological biomass canopy coffee competition conservation cultivation culture diversity domestication ecological economic ecosystem effects environmental ethnobotany evapotranspiration example Faidherbia fallow farmers farming systems fertility field fodder forage forestry fruit fuelwood gardens Gliricidia Gliricidia sepium grafting grazing ground cover growers growth hedgerow household ICRAF improved increased indigenous Indonesia inputs integrated interactions intercropping International Kenya knowledge labor land leaf Leakey legumes Leucaena leucocephala levels litter livestock maize micropropagation MPFT mulch Nair Nairobi natural nitrogen nitrogen fixation nutrient cycling organic palm participatory pasture pest management Pimentel plant plantations plots potential practices programs propagation pruning rainfall reduce Rocheleau root runoff rural season seed seedlings selection shade Sharrow silvopastures social soil erosion strategies surface runoff sustainable Syst tannins techniques tree species tropical vegetation vitro weed yields
Page 237 - Hunting grounds are the most interesting case of this shifting, nonagricultural land tenure. The ecological habits of different animals were so various that their hunting required a wide range of techniques, and rights to land use had to differ accordingly. What the Indians owned — or, more precisely, what their villages gave them claim to — was not the land but the things that were on the land during the various seasons of the year.
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