Soil physicochemical properties and hyperspectral feature of Seriphidium transiliense desert grassland

The present study measured soil physicochemical and grassland spectrum of Seriphidium transiliense desert grassland to discuss their response to enclosure. The results showed that soil water content decreased during the growth period and increased with the enclosure period extending in May and September. The model of the relationship between community spectrum and soil water content was simulated with R2 of 0.633. The difference of soil organic matter between inside and outside of fence in May increased with the enclosure period extending. Difference of soil organic matter decreased linearly in grassland enclosed 7 and 10 years. The models simulated with both indoor soil spectra and the field bare land spectra were optimal with R2 of 0.64 and 0.38, respectively. These results showed that soil moisture and organic matter were sensitive to grassland restoration which can be used to monitor S. transiliense desert grassland.