HE Zhong-hua,CHEN Xiao-xiang,LIANG Hong,et al.Quantitative Remote Sensing Monitoring and Analysis of Karst Water Resources Based on NDVI-Taking Guizhou Province as a Case[J].Research of Soil and Water Conservation,2012,19(03):161-165.
基于NDVI的喀斯特水资源遥感定量监测及分析——以贵州省为例
- Title:
- Quantitative Remote Sensing Monitoring and Analysis of Karst Water Resources Based on NDVI-Taking Guizhou Province as a Case
- 关键词:
- 喀斯特流域; 喀斯特水资源; Landsat TM影像; NDVI; 监测预测模型
- Keywords:
- karst basin; karst water resources; Landsat TM image; NDVI; monitoring model
- 分类号:
- TV211.13;P208.2
- 摘要:
- 喀斯特是一类脆弱的生态环境，水资源是脆弱生态环境的重要组成部分，NDVI是流域赋水状况及空间分布的重要指标，因此，喀斯特水资源监测是研究脆弱生态环境的重要内容。在贵州省内选择20个流域作为研究样区，根据Landsat TM的植被光谱特征，利用遥感技术，提取LNDVI和ρNDVI；利用数学分析方法，建立喀斯特流域水资源监测模型。通过分析得出：① 植被覆盖率是喀斯特流域赋水的重要指标；② 利用地物表观反射率的归一化植被指数（ρNDVI）对喀斯特流域水资源进行监测，效果更好、精度更高；③ 建立了喀斯特水资源遥感监测模型。
- Abstract:
- Karst is a vulnerable eco-environment. Water resources are important part of the fragile eco-environment. NDVI is the importance index of the Karst Basin water-holding condition and spatial distribution, therefore, to monitor the karst water resources is an important behavior of studying the vulnerable eco-environment. 20 watersheds were selected as the study areas in Guizhou Province in this paper. According to Landsat TM spectral characteristics of vegetation, LNDVI and ρNDVI were extracted by using remote sensing techniques. The model of karst drainage basin water resources monitoring was established by using mathematical analysis. It could be obtained by the analysis that the vegetation coverage was an important indicator of the karst basin water-holding, the karst basin water resources monitoring by using surface feature apparent reflectance of the normalized difference vegetation index was better results and higher accuracy, and the remote sensing monitoring model of karst water resources was established.
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备注/Memo
收稿日期:2011-9-27;改回日期:2011-11-4。
基金项目:贵州省教育厅基金（黔教科20090039，2006307）；贵州省科技厅基金（黔科合J字[2010]2026号）；贵州省水利厅基金（KT201010，KT201105，KT200802）
作者简介:贺中华（1976- ），男，副教授，博士生，研究方向：环境遥感。E-mail：zhonghuahe@gznu.edu.cn
通讯作者:高照良（1969- ），男，河南灵宝人，博士，副研究员，主要从事土壤侵蚀与荒漠化研究。E-mail：gzl@ms.iswc.ac.cn