A Review on Estimating Fractional Cover of Non-photosynthetic Vegetation by Using Remote Sensing |
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| Authors: | Wang Guangzhen Wang Jingpu Zou Xueyong Han Liu Zong Min |
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| Affiliation: | (1.College of Resource and Environment Engineering，Ludong University，Yantai 264025，China;;2.State Key Laboratory of Earth Surface Process and Resource Ecology，Beijing Normal University，Beijing 100875，China) |
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| Abstract: | The quantitative estimation of fractional cover of photosynthetic vegetation(f PV)，non-photosynthetic vegetation(f NPV)，and bare soil(f BS) is critical for grassland ecosystem carbon storage，vegetation productivity，soil erosion and wildfire monitoring.The ecological importance of NPV has driven considerable research on quantitatively estimating NPV in diverse ecosystems including croplands，forests，grasslands savannah，and shrublands using remote sensing.This paper reviews the research progress in estimating f NPV using hyperspectral and multisspcetral remote sensing data，and hightlights discusses the theoretical bases of PV，NPV and BS spectral characteristics.based on the existing methods for estimating f NPV，this article groupd into two categories:empirical relationship between spectral index and NPV cover，and Spectral mixture analysis.Meanwhile，also discuss applications.of hyperspectral and multisspcetral remote sensing data.Finally，the existential problems and research trends for NPV estimation are analyzed. |
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| Keywords: | Remote sensing Non-photosynthetic vegetation(NPV) Spectral index Spectral mixture analysis |
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