Research on the relationship between soil erosion and landscape pattern in the Wuyuer River basin based on GIS

Wenjuan Wang

doi:10.1117/12.836371

10 July 2009 Research on the relationship between soil erosion and landscape pattern in the Wuyuer River basin based on GIS

Wenjuan Wang

Author Affiliations +

Proceedings Volume 7491, PIAGENG 2009: Remote Sensing and Geoscience for Agricultural Engineering; 749107 (2009) https://doi.org/10.1117/12.836371
Event: International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2009), 2009, Zhangjiajie, China

Abstract

In recent years, soil erosion has been an increasing concern in the Black Soil Area of Northeast China because of its harm to the marketable grain basis in China. Taken Wuyuer river basin in Black Soil Area of Northeast China as study area, Using GIS, RS and USLE, by choosing the reasonable calculating methods to get each factor in the USLE, we evaluated the soil erosion of this basin in 2005a. Otherwise, chosen the 48 subbasin as basic analysis units, with the spatial analysis ability of GIS and FRAGSTAT software, it get the soil erosion modulus and corresponding landscape pattern metrics in each subbasin. Base on these data, the relationship between soil erosion and landscape pattern was analyzed and the result can provide suggestion for landuse planning and soil erosion control. It shows that middle and upper reaches of Wuyuer river basin is the main erosion region, and its mean soil erosion modulus is 258.85t/(km²•a), which is higher than the tolerable soil loss rate in Black Soil Area of Northeast China. This region needs erosion control urgently. Correlation analysis shows a positive correlation between percentage of landscape(PLAND) of cropland, grassland, Perimeter-Area Fractal Dimension (PAFRAC), Shannon's Diversity Index (SHDI) and soil erosion modulus; Percentage of landscape(PLAND)of forest land as well as Contagion Index(CONTAG) show negative correlation with erosion modulus. With further analysis, it concludes that regulating the landscape pattern in cropland, grassland and forestland reasonably is very important for the soil erosion control and management.

Citation Download Citation

Wenjuan Wang "Research on the relationship between soil erosion and landscape pattern in the Wuyuer River basin based on GIS", Proc. SPIE 7491, PIAGENG 2009: Remote Sensing and Geoscience for Agricultural Engineering, 749107 (10 July 2009); https://doi.org/10.1117/12.836371

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available