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Vegetation Rehabilitation and Building of Loess Plateau

ZHANG Wen-hui1,LIU Guo-bin2(1.Key Laboratory of West Environmental and Ecology of Education Ministry,Northwest A & F University,Yangling,Shaanxi 712100,China;2.Soil and Water Conservation Research Institute of CAS and MWR,Yangling,Shaanxi 712100,China)  
It analyzes the foundation and potentiality of vegetation rehabilitation systematically and proposes the objectives and tactics of vegetation rehabilitation of the Loess Plateau,based on the datas of scientific integrated survey which are obtained by Northwest Loess Area Study Group on soil and water loss and ecological security.The elementary measures for natural community rehabilitation of the Loess Plateau are fencing and artificially promoting when the condition is suitable,in order to combine the forces of natural vegetation rehabilitation with man-made promotion;making full use of the local species of trees and grasses and the foreign species for artificial rehabilitation,adopts protective measures of soil preparation and management,for inducing the local species into community for natural cultivation;taking a river basin as a treatment unit,optimizes the spatial layout and area composition of landscape spot and gradually rebuilds the artificial community which has the character of degeneration,achieving the self-rejuvenate and continuous utilization of the community;the government departments should protect the existing achievements by policy and expand the proportion of natural rehabilitation;protects the enthusiasm of large scale contract farmers and encourages multi-investment for vegetation building;expands the momentum of vegetation building and scientific investment for the loess area and promotes the innovation capability of vegetation rehabilitation of the loess area.
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