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Proceedings Paper

A GIS-based approach for spatial analysis of agricultural nitrogen pollution and its application
Author(s): Liping Lu; Lin Sun; Zhihao Qin
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Paper Abstract

Agricultural pollution, which has a direct impact on the water, soil and air quality, is a common but increasingly serious environmental problem nowadays. The misusage of fertilizer, high application fertilizer and low utilization rate, are the major factors of the pollution. Therefore, the pollution caused by nitrate nitrogen has posed a very serious problem to the ecological environment. Combined with the GIS technology, this paper takes Majiang County in Guizhou province that is at southwest of China as a case, to carry out the research on the calculation of the nitrogen surplus in paddy field and the dry land based on the farmland nutrient balance model using the fertilizer amount. This paper reveals the spatial distribution characteristic of the nitrogen pollution, which can help to find a reasonable crop cultivation and fertilization methods to increase the effective utilization fertilization and therefore reduce the pollution.

Paper Details

Date Published: 30 October 2009
PDF: 7 pages
Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 74984D (30 October 2009); doi: 10.1117/12.832459
Show Author Affiliations
Liping Lu, China Meterological Administration (China)
Nanjing Univ. (China)
Lin Sun, Institute of Geographic Sciences and Natural Resources Research (China)
Zhihao Qin, Chinese Academy of Agricultural Sciences (China)
Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 7498:
MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications
Faxiong Zhang; Faxiong Zhang, Editor(s)

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