Field Survey Framework Strategy of Soil and Water Conservation Practices Based on Geoinformatic Technology

摘要

Micro-watershed or sub watershed is the unit of soil and water conservation practices in China. Every year the Chinese government devotes fund and manpower in regional soil and water conservation practices. How to get the information about regional devotion objectively becomes a problem. The management organization needs a new tool to learn the spatial pattern of certain conservation technique and ecological change. High spatial resolution image data is very expensive in cost to monitor every Micro-watershed. So depending on the exiting Micro-watershed distribution map, the attribute information in tables about soil and water conservation practices, road information in GIS, Landsat TM data and GPS, a field survey and sampling framework strategy of soil and water conservation practices on regional scale was developed in this paper and applied to the upstream Guan Ting reservoir.