Grade agricultural soil loss amount by integrating GIS technology and USLE in upstream of Yangtze River, China

Shi-bo Fang; Wu-nian Yang; Zhiqiang Gao

doi:10.1117/12.614878

1 September 2005 Grade agricultural soil loss amount by integrating GIS technology and USLE in upstream of Yangtze River, China

Shi-bo Fang, Wu-nian Yang, Zhiqiang Gao

Author Affiliations +

Proceedings Volume 5884, Remote Sensing and Modeling of Ecosystems for Sustainability II; 58840O (2005) https://doi.org/10.1117/12.614878
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

The Chinese government established the Natural Forest Conservation Program(NFCP) in 1998. As nationwide engineering, one of the most important tasks of NFCP was to mandatory conversion of marginal farmlands to forestland or grassland(reforestation or afforestation in farmlands) where topographical slope steepness was more than 25. In order to quantitatively study the grade of agriculture soil loss amount and soil erosion volume spatio-temporal variation, as well as to guide the process of the conversion of farmlands to forest in upstream of Yangtze Rivers, western of Sichuan province in China. The research analyzed how to calculate K, S, L, C and P factors of Universal Soil Loss Equation(USLE) on the base of considering terrain, climate and characters of agricultural soil. The methods can adapt to the variation terrain of the dry valley region in western Sichuan province. As believed the reforestation was a long-term engineering, we thought the planning of reforest farmlands is a temporal decision, which should be considered that where should be afforested at once and where should afforested in abeyance on the basis of grading soil loss amount and the others conditions of reforesting farmland. Grading agricultural soil loss amount would be beneficial to program a feasible plan in the conversation of farmlands to forest.

Citation Download Citation

Shi-bo Fang, Wu-nian Yang, and Zhiqiang Gao "Grade agricultural soil loss amount by integrating GIS technology and USLE in upstream of Yangtze River, China", Proc. SPIE 5884, Remote Sensing and Modeling of Ecosystems for Sustainability II, 58840O (1 September 2005); https://doi.org/10.1117/12.614878

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