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A 2001–2015 Archive of Fractional Cover of Photosynthetic and Non-Photosynthetic Vegetation for Beijing and Tianjin Sandstorm Source Region

1
Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China
2
Institute of Forest Resources Information Technique, Chinese Academy of Forestry, Beijing 100091, China
3
Institute of Desertification Research, Chinese Academy of Forestry, Beijing 100091, China
*
Author to whom correspondence should be addressed.
Received: 23 June 2017 / Revised: 19 August 2017 / Accepted: 21 August 2017 / Published: 25 August 2017
(This article belongs to the Special Issue Geomatic Data for Land Degradation Surveillance)
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Abstract

Fractional covers of photosynthetic and non-photosynthetic vegetation are key indicators for land degradation surveillance in the dryland of China. However, there are no available, well validated, and multispectral-based products. Aiming for this, we selected the Beijing and Tianjin Sandstorm Source Region as the study area, and utilized the linear spectral mixture model for generating the fractional cover of PV, NPV, and bare soil, with endmember spectra retrieved from the field measured endmember spectral library, based on the MODIS NBAR data from 2001 to 2015. The unmixing results were validated through comparison with the field samples. The results show the method adopted could acquire rational and accurate estimation of fractional cover of photosynthetic vegetation (R2 = 0.6297, RMSE = 0.2443) and non-photosynthetic vegetation (R2 = 0.3747, RMSE = 0.2568). The dataset could provide key data support for the users in land degradation surveillance fields. View Full-Text
Keywords: non-photosynthetic vegetation; land degradation surveillance; linear spectral mixture model; endmember; MODIS NBAR non-photosynthetic vegetation; land degradation surveillance; linear spectral mixture model; endmember; MODIS NBAR
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Li, X.; Li, Z.; Ji, C.; Wang, H.; Sun, B.; Wu, B.; Gao, Z. A 2001–2015 Archive of Fractional Cover of Photosynthetic and Non-Photosynthetic Vegetation for Beijing and Tianjin Sandstorm Source Region. Data 2017, 2, 27.

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