丹江口库区农户有机肥施用的影响因素分析

农业生产中有机肥的施用可以减轻农村面源污染对水体的影响，从而改善水库水质。丹江口水库是南水北调中线工程的水源地，水库水质的有效控制和改善是该工程成功的前提。从库区6县（市）223户农民的调查数据观察，并运用Logit模型对影响农户有机肥施用的因素进行分析。结果表明，饲养猪或牛的农户有机肥施用行为发生概率相对较高，农户农业收入比越高则有机肥施用行为发生概率越低；工业化和城市化使农户家庭自给自足的有机肥供给和需求模式被打破，有机肥施用行为的减少是农户有机肥供需模式向市场化过渡时期的阶段性结果。

Analysis of the influencing factors on the farmers' use of manures in Danjiangkou reservoir area

Using manures can reduce the effect of non-point pollution on water body. This paper tries to analyze the influencing factors on the using of manures based on the survey data of 6 counties in Danjiangkou Reservoir Area. The Logit model is used here. The regression result shows that the farmer who raises pig or cattle prefer to use manures and the farmer whose income ratio of agriculture is higher has a lower rate in using manures. Industrialization and urbanization have broken the farmers＇ self-sufficient mode of manures, and then the farmers cannot get enough manure before its marketization is realized.