森林火灾后生态变化遥感监测评价模型的构建方法研究

Remote Sensing Model for Ecoloigcal Change Monitoring and Evaluation after Forest Fire

通过攀西林区云南松林的一系列旧火烧迹地的更新恢复和生态变化的遥感调查，对各生态因子的空间分布特征及生态变化的影响规律进行分析，确定了评价因子（变量）及其评价标准，利用遥感信息，以及地形、土壤、林分和林木受害程度等要素的８个因子的模糊综合评判结果和火烧年限等为变量，通过多组数据的多元统计分析，建成森林火灾后生态变化遥感监测评价模型，经野外调查结果验证分析，达到了预期的攻关目标。为使该模型能适应森林生态遥感监测运行系统的需要，对各监测因子数据的获取、植被指数的提取等方面进行了深入的方法探索。

This paper introduces the method of remote sensing model for ecologicalchange monitoring and evaluation after forest fire.According to the investigation of regeneration and ecological change of Yunnan Pinus fire slashes by remote sensing inPanxi, it analyses spatial distribution and change regular of ecofactors and determinesmajor ecofactors and its evaluation criteria. Basing on remote sensing information andthe result of fuzzy synthetical evaluation to eight factors or topography soil,stand anddegree of deforestation and the years after forest fire, creats remote semsing model forecological change monitoring and evaluation after forest fire.This model makes usachieve expected purpose.For forest ecological dynamic monitoring system by remotesensing,it's discussed that the data of monitoring factors and vegetation index areabtained.