Study on remote sensing monitoring of land cover in comprehensive development of lancang river basin 澜沧江流域综合开发中土地覆盖遥感监测试验研究
At present there are more reports on soil erosion by experts from home and abroad , but most of these reports were about simulation and research based on a single factor . there are little reports on soil erosion on entire watershed , adopted comprehensive research measures according to the principle of ecological system , especially on soil erosion from the intensive farming system on slope lands , watersheds exploited for agroforestry industry , as well as appraisal reports on soil fertility index 目前国内外学者有关水土流失的报道很多,但大多数以单一因素和模拟试验研究较多,而从生态系统角度出发,采用综合方法,在小流域尺度上研究水土流失规律较少;对小流域坡耕地综合农业措施水土保持效应和小流域综合开发利用过程中水土流失规律研究以及侵蚀土壤肥力评价的研究则更少。
Soil erosion and nutrient losses in jiangjiatang watershed in lanxi city in zhejiang province during exploitation was studied from 1993 - 2000 using adoptive research methods such as runoff plot , catchment area , and rare earth element tracer ( eu ) , and the soil fertility index appraisal . the major conclusions are as follow : 1 . the principle of water and soil losses together with nutrients and the forms in which they were lost were studied under different fanning systems in runoff plot 本研究选择浙江省中部金衢盆地边缘兰溪市水土保持监督站蒋家塘小流域为研究试验点,以协作单位兰溪市水土保持监督站小流域开发试验区为基础,采用坡面径流小区法、单源汇水试验区出口实测法、稳定性核素- eu土芯示踪法研究了2000年坡耕地不同农作措施水土流失规律及养分流失规律和小流域综合开发过程中水土流失规律及养分流失规律,并对小流域侵蚀土壤的肥力现状进行评价。
流域: watershed; basin; drainage a ...综合开发: the comprehensive exploitati ...江河流域综合开发: integrated river basin development农业区域综合开发: regionale allseitige entwicklung der landwirtschaft流域综合特征: drainage composition大湄公河次区域综合开发专题讨论会: symposium on the comprehensive development of the greater mekong subregion综合开发: complex development; comprehensive development; comprehensive exploitation; multipurpose development; overall development流域综合发展工程: multiple-purpose development works of river basin小流域综合治理: small watershed managment农业综合开发: comprehensive agricultural development综合开发公司: a comprehensive development corporation; comprehensive development company; comprehensive development corporation综合开发计划: all-out development plan; comprehensive development planning城市建设综合开发: city eomprehensive development大田综合开发公社: dae joen ind. construction co., ltd大洋综合开发公司: dae yang ind. construction co., ltd东安综合开发公司: dong an development co., ltd东亚综合开发公司: dong ah general development co., ltd房地产综合开发: comprehensive devel opment o{real estate; comprehensive development of real estate农业综合开发资金: funds for overall agricultural development三互综合开发公司: sam ho development co., ltd网络综合开发环境: network integrated development environment新和综合开发公司: shin wha development co., ltd信元综合开发公司: shin won development & construction co., ltd有计划的综合开发: planned multiuse developments综合开发研究院: china development institute