It establishes Beijing ecologic and clean-type small watersheds monitoring index system by taking an ecologic and clean-type small watershed as an object of study.

Building ecologic and clean-type small watersheds proceeding from beginning with optimized land use allocation is of an important way to protect regional water and land resources and prevent and control the deterioration of ecologic environment.

Comprehensive management and water source protection in the clean small watershed at Hongqi Reservoir in Dongshan County;

Based on the analysis of the ecological and environmental situation in the watershed of Songtao Reservoir and many ecological theories,the concept of eco-friendly watershed was propounded,and its connotative meaning explained.