RecordNumber :
442
Doc. No. :
9F
Call. No. :
9F
Author :
Hashim, ghulam
Title of Article :

Sustainable land management in tropical tree-crop ecosystems

Title Of Periodical :
FOOD
VolumNumber :
V.424
Date :
(August 1996)
Page :
P.1-9
Descriptors :
Cocoa,Gliricidia,Hydrology,Soil conservation,Soil erosion,Sustainability,tree crops
Abstract :
Soil erosion is a major process of land degradation. Effective soil erosion management is therefore a vital part of the quest for sustainable agriculural production. In tree-crop ecosystems in the humid tropics, the processes of soil erosion operating under the tree canopy are assciated with the large-scale flow of surface water during high-intensity rainstorms. Research carried out in Malaysia has shown that a cocoa-Gliricidia ecosystem which maintains dense surface vegetation,together with circle weeding, satisfied many indicators of sustainability. In comparison with an adjacent clean-weeded area, soil loss associated with the improved practice was extremely low, peak runoff rate was low, runoff was delayed loss of nutrients was reduced, and plant growth enhanced. In many tropical tree-crop ecosystems, leaf litterfall returns nutrients to the soil. However,under slopeland conditions during wet spells, there was rapid mobilization of leaf litter. This is an important process of nutrient displacement. Living surface vegeation effectively controlled this process.
Indexer :
1376/12
IndexDate :
Shahsavary
اطلاعات ثبت :
GN135147
Link To Document :

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