Study of the Differences between Vegetation and Soil Spectrum about Alpine Wetland Ecosystem

Abstract:

Using FieldSpec ® 4 Hi-Res portable coverings spectrometer, we have measured the main vegetation and siol reflectance based on different habitats:Surface water swamping meadow, a seasonal water swamping beach, wet beach without of water and sandy in the little Park Lake, East of the Qinghai Lake and analyzed the spectral differences. The results show that: Soil moisture is one of the important factors that affect reflectivity. Under the premise of similar other soil properties, soil moisture and reflectivity shows a negative correlation with each other. 350-1000nm wavelength range is ideal to distinguish vegetation and soil. Due to the presence of water absorption bands, within 1000-1300nm the spectrum derivative of soil and vegetation has a strong similarity, but still can be used to identify the spectrum of vegetation and soil. In addition to sandy habitats, vegetation and soil spectrum has a strong similarity in the 1300-2500nm wavelength range, it is more tolerance translation will confuse the two bands, the spectrum has a strong similarity in the range of 1300-2500nm, so it is relatively easy to confuse the two spectrum.

• Periodical: Advanced Materials Research (Volume 937)
• Pages: 565-570
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.937.565
• Online since: May 2014
• Authors: Ji Ming Wang, Ke Long Chen*, Xin Zhang, Zheng Xia Luo
• Keywords: Alpine Wetland Ecosystems, Feature Spectrum, Qinghai Lake Basin, Soil, Vegetation Communities

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