小尺度潮间带生态系统遥感综合评估方法构建

基于遥感技术，将生态系统格局、质量及服务功能等3方面集成起来，考虑尺度、受益者需求后，构建了小尺度潮间带生态系统遥感综合评估方法，解决了生态系统评估尺度转换及生态系统系统性评估弱的问题.基于构建的评估方法，以辽宁省双台子河口潮间带生态系统为研究区，定量评估了其在1990~2016年间的生态系统状况及变化趋势，结果表明研究区生态系统综合评估状况以差等级和中等级为主，有13.1%的像元呈显著减弱趋势，6.9%的像元呈显著增加趋势.综合评估结果能够定量反映研究区各地物类型的生态系统时空差异，符合受益者感受，并与前人研究成果一致，表明构建的生态系统综合评估方法具有可行性与应用潜力.

Construction of integrated ecosystem assessment method at the small-scale intertidal ecosystem based on remote sensing

An integrated ecosystem assessment method based on remote sensing technology at the small-scale intertidal ecosystem was proposed by integrating the ecosystem structure, quality and service function. The method solved the problem of scale conversion and weak systematic in ecosystem assessment. Taking Shuangtaizi estuary of Liaoning Province as the study area, the proposed method was used to assess the status and changing trend from 1990 to 2016. The results showed that the study area was dominated by poor and intermediate grade, 13.1% of pixels showed the significant weakening trend while 6.9% showed the significant growth trend. As a result, the assessment can reflect the spatial and temporal differences of the various land cover types quantitatively, which met beneficiary's experience and consistent with the previous research results. Therefore, the above conclusion showed that the constructed integrated ecosystem assessment method had the feasibility and application potential.