湿地生态系统的累积影响评价

Cummulative Impact Assessment on Wetland Ecosystem

累积影响评价主要衡量多种干扰共同作用于一个系统而产生的综合影响，累积影响可以通过时空拥挤效应、协同作用、间接效应以及蚕食作用引起．对湿地生态系统的累积影响评价主要针对湿地所执行的生态功能进行评价．累积影响评价必须注意所涉及对象的时空尺度，适当确定评价的边界．

Cumulative impact assessment mainly estimates the integrativeeffects of multiple disturbances on a system. Cumulative impacts may result from timeand space-crowed effects, synergism , indirect effects and nibbling. The cumulativeimpact assessment on wetland ecosystem focuses on the ecological functions of wetland,and must consider the temporal and spatial scales of the system concerned. Tht temporaland spatial boundaries will be established appropriately.