Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3964/j.issn.1000-0593(2010)09-2470-05 |
Study on the Relation between Fraction Cover and Mixed Spectra in Karst Enviroment | |
Liu Bo1; Yue Yue-min2,5; Li Ru3; Wang Ke-lin4; Zhang Bing4; Tong Qing-xi1 | |
通讯作者 | Liu Bo |
来源期刊 | SPECTROSCOPY AND SPECTRAL ANALYSIS |
ISSN | 1000-0593 |
出版年 | 2010 |
卷号 | 30期号:9页码:2470-2474 |
英文摘要 | Karst rocky desertification is one of the most serious eco-environmental problems of land degradation in karst regions, Southwest China. The fractional cover of vegetation and exposed bedrock are the main land surface symptoms and essential assessing indicators of karst rocky desertification. To assess the extent of rocky desertification in complex karst environments, the information of multiple land cover types fraction is needed. Based on in situ spectral reflectance data, this study proposed several spectral indices and explored the relationship between spectral features of main land cover types and their responding fractional cover. The results showed that spectral indices have much higher correlation coefficients with fractional cover than does spectral reflectance. Vegetation indices have good linear relation with fractional cover of photosynthetic vegetation(PV). The proposed spectral indices have high correlation coefficients with fractional cover of non-photosynthetic vegetation(NPV) and bare soil, with R(2) 0. 70 and 0. 73, respectively. Lower correlation coefficients(R(2) = 0. 55) with the factional cover of exposed bedrock, were observed. The absorption depth of four forms of the proposed indices has the highest correlation coefficient with the fractional cover of NPV, bare soil, and exposed rock This study indicates that hyperspectral remote sensing has the potential for the extraction of karst rocky desertification information. |
英文关键词 | Spectral analysis Karst Fraction cover Rocky desertification |
类型 | Article |
语种 | 中文 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000281661000038 |
WOS关键词 | VEGETATION COVER |
WOS类目 | Spectroscopy |
WOS研究方向 | Spectroscopy |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/166483 |
作者单位 | 1.Chinese Acad Sci, Inst Remote Sensing Applicat, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, Inst Subtrop Agr, Changsha 410125, Hunan, Peoples R China; 3.Chinese Univ Hong Kong, Inst Space & Earth Informat Sci, Hong Kong, Hong Kong, Peoples R China; 4.Chinese Acad Sci, Ctr Earth Observat & Digital Earth, Beijing 100080, Peoples R China; 5.Chinese Acad Sci, Huanjiang Expt Stn Karst Ecosyst, Huanjiang 547100, Peoples R China |
推荐引用方式 GB/T 7714 | Liu Bo,Yue Yue-min,Li Ru,et al. Study on the Relation between Fraction Cover and Mixed Spectra in Karst Enviroment[J],2010,30(9):2470-2474. |
APA | Liu Bo,Yue Yue-min,Li Ru,Wang Ke-lin,Zhang Bing,&Tong Qing-xi.(2010).Study on the Relation between Fraction Cover and Mixed Spectra in Karst Enviroment.SPECTROSCOPY AND SPECTRAL ANALYSIS,30(9),2470-2474. |
MLA | Liu Bo,et al."Study on the Relation between Fraction Cover and Mixed Spectra in Karst Enviroment".SPECTROSCOPY AND SPECTRAL ANALYSIS 30.9(2010):2470-2474. |
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