干旱区灌溉农田退耕还林政策实施的WSU-PRA调查研究——以甘肃民勤绿洲为例

本文通过WSU$CPRA(水土资源利用的农村参与式评估 )方法 ,以民勤绿洲为研究对象 ,对干旱区灌溉农田退耕还林政策实施过程与效果进行了半结构访谈调查。结果表明 :退耕还林实施后 2 0 0 3年全社会土地资源利用实际上涨 1 4.7个百分点 ;挤占粮经生产河水资源1 4% ,以红崖山水库渠口水量计算约为 0 .1 2 1亿m3;植树扩大地下水开采 0 .398亿m3,种植饲草节水 0 .1 0 76亿m3,增减相抵实际扩大地下水开采 9.63%～ 1 0 .37%。

Investigation of WSU-PRA of Implement the Policy of Returning Cultivated Land to Forest in Arid Areas ——Taking the Minqin County as example

This text utilized the method of WSU-PRA, taking the Minqin County as the research object, to investigate the course and result of implement the policy of returning cultivated land to forest in arid areas. The result showed : The utilization of land resources of the whole society rose 14.7% in 2003 after implement the policy of returning cultivated land to forest; The expanded exploitation of groundwater for tree plantation was 0.39х10 8m 3, the economized water due to the forage plantation was 0.1076х10 8m 3, expanded exploitation of groundwater was 9.63%-10.37% actually.