遥感技术在提取影响滑坡的环境变量上的应用

被引：1

作者：

侯美亭

机构：

[1] 中国气象局气象干部培训学院

来源：

气象科技进展 | 2013年 / 3(S1)卷 / S1期

关键词：

遥感; 滑坡; 环境变量; 风险评价;

D O I：

暂无

中图分类号：

P642.22 [滑坡]; TP79 [遥感技术的应用];

学科分类号：

0837 ; 081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

滑坡的发生与环境变量的影响密不可分。影响滑坡的环境变量可分为动态变量和静态变量两大类,有时,环境变量也可以单独指静态变量。动态变量,又称为触发因素,如强降水、台风、大地震等,往往具有突发性、偶然性,预测难度较大。静态变量,主要包括地形地貌、土壤性质、植被覆盖、土地利用/土地覆盖(LULC)、地质条件等,这些变量在短时间尺度内往往相对稳定,也是滑坡模拟预测最重要的输入参数。对于静态变量的特征提取,遥感技术已显示了明显优势。通过对以往滑坡研究的文献调研,指出了遥感技术在提取滑坡的环境变量方面的进展,特别是遥感对植被覆盖、地形特征和土壤性质等几种重要静态变量的提取,并举例介绍了环境变量在滑坡风险评价中的应用。未来滑坡研究需要利用和开发新的工具提高对土壤性质和岩性的遥感监测能力,改进对滑坡易发地区植被退化区或根系结构脆弱区的识别能力。

引用

页码：41 / 49

页数：9

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