Estimating the Effects of DEM and Land Use Types on Soil Moisture Using HJ-1A CCD/IRS Images: A Case Study in Minhou County

Yu Qin Liu; Jin Ming Sha; De Sheng Wang

doi:10.4028/www.scientific.net/AMR.726-731.4572

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Estimating the Effects of DEM and Land Use Types...

Estimating the Effects of DEM and Land Use Types on Soil Moisture Using HJ-1A CCD/IRS Images: A Case Study in Minhou County

Abstract:

Soil moisture is of great significance for regional resources and environments. The combination of land surface temperature (T_s) and vegetation index (VI) is appropriate for monitoring the regional surface soil moisture status. In this study, we employed HJ-1B CCD/IRS images, DEM and land use types to obtain the information about soil moisture for Minhou county in FuZhou. Firstly, TVDI reflected the soil moisture status was analyzed with in-situ soil moisture measurements based on two kinds of different vegetation indexes (NDVI/EVI). Secondly, the relationship between TVDI and DEM was analyzed. Finally, the soil moisture status of each land use type was explored combined with the main land use types of study area. Research findings indicate that: (1) TVDI can effectively reflect the spatial pattern of soil moisture and T_s/EVI has a higher accuracy than T_s/NDVI; (2) the spatial distribution of soil moisture is obviously affected by the altitude; (3) there exists correlationship between soil moisture and land use types in study area.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

4572-4576

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.4572

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Online since:

August 2013

Authors:

Yu Qin Liu*, Jin Ming Sha, De Sheng Wang

Keywords:

DEM, Land Use Type, Minhou, Soil Moisture, TVDI

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