子午岭林区土壤侵蚀与生态环境关系的研究内容和方法  

Research Subjects and Methods of Relationship between Soil Erosion and Eco-Environment in the Ziwuling Forest Area

作　　者：唐克丽[1] 郑粉莉[1] 张科利[1] 王斌科[1] 蔡庆[1] 王文龙[1] 

机构地区：[1]中国科学院水利部西北水土保持研究所,陕西杨陵712100

出　　处：《水土保持研究》1993年第1期3-10,共8页Research of Soil and Water Conservation

基　　金：国家自然科学基金资助重大项目<黄河流域环境演变与水沙运行规律>

摘　　要：围绕子午岭天然次生林区土壤侵蚀与生态环境演变关系的研究主题,着重讨论研究背景,研究内容和研究方法。以典型调查和定位观测相结合,分析研究植被的破坏与恢复对土壤侵蚀的影响。通过建立大型径流场,动态监测不同地形部位林地与开垦地的土壤侵蚀演变过程,包括降雨、径流、入渗和侵蚀量的变化,细沟侵蚀和浅沟侵蚀的演变,土壤侵蚀与土壤退化的演变,坡、沟侵蚀的演变;同时结合进行野外人工降雨试验,林地和开垦地小气候对比观测等。初步建立了一整套宏观与微观相结合的研究体系,在黄土高原残留林区建立了土壤侵蚀与生态环境观测站,填补了国内空白。The Ziwuling forest area is taken as main research sujects,the relationship between soil erosion and eco-ervironment chang has been researched in this paper,the research subjects and methods have been discussed.Using methods of typical field investiation with site dynamic observation,effect of vegetation destruction and restoration on soil erosion has been analysed. Through establishing large runoff plots,using simulated and local climate observation,soil ero- sion change process of forest land and reclaimed land in different topographical types has been monitoried,which includes rainfall,runoff,infiltration and soil erosion amount change;change of rill erosion and shallow gully erosion;change of slope surface erosion and gully or valley erosion. A series of systems of connection macro—research with micro—research have been established. Establishment of observatory of soft erosion and eco—environment in the residual forestry ragion of the loess plateau fills gab in china.

关 键 词：土壤侵蚀 生态环境 子午岭林区 林地开垦 观测站 

分 类 号：S157[农业科学—土壤学]