陕西省安塞县梯田建设及其对环境和农业发展的影响  

Terrace development and its effects on the environment and agricultural development in Ansai County,Shaanxi Province

作　　者：王茜[1,2] 吕昌河[1] 于伯华[1] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101 [2]中国科学院研究生院,北京100039

出　　处：《干旱区资源与环境》2011年第9期51-54,共4页Journal of Arid Land Resources and Environment

基　　金：中国科学院知识创新重要方向性项目(kzcx2-yw-421);自然科学基金项目(40671007)资助

摘　　要：利用统计和检测数据分析了影响安塞县梯田建设的因素以及梯田建设对环境和农业发展的影响,研究结果表明:建国后安塞县梯田建设分为起步期、缓慢增长期、快速增长期和基本稳定期四个阶段。坡耕地转换为梯田后,土壤水肥条件得到改善,土地利用集约度和粮食单产明显提高。梯田建设对农业和农村经济发展的贡献具有阶段性,1996年前,农户生计方式主要是以粮食种植业为主,梯田建设对农业总产值和农民人均纯收入增长的贡献较大,1996年后,随着农户生计方式的变化,梯田建设对农业产值和农民人均纯收入的贡献减弱。In this paper we analyzed the development and affecting factors of terrace building in Ansai in 1950-2006,and then identified its contributions to the soil conservation,food grain production,rural income and agricultural development.Terrace construction in Ansai County could be divided into four stages,initial period,slow growth period,rapid growth period and relatively stable period.Conversion of sloping fields to terraced farmland improved the soil moisture and fertility conditions,stimulated the production inputs such as fertilizer,labor etc.,and thus greatly increased the grain yield.Observation data showed that the crop yield in terraced land is generally 1.72 times higher than slope farmland.Statistical analyses revealed that terrace building in the past decades has not only contributed greatly to the food grain production in Ansai,but also promoted a marked increase of rural income,particularly in the period before the year 1996,in which rural area income was mainly from cropping cultivation.

关 键 词：安塞县 梯田建设 农业总产值 农民人均纯收入 

分 类 号：F301[经济管理—产业经济]