Study on Vegetable Field Evaluation Index System for Non-Point Source Pollution of Dagu River Basin - Archive ouverte HAL Access content directly
Conference Papers Year : 2011

Study on Vegetable Field Evaluation Index System for Non-Point Source Pollution of Dagu River Basin

(1) , (2) , (1) , (1) , (1) , (1) , (1) , (1)
1
2

Abstract

This research combined data from soil, terrain and meteorological surveys, with quantitative data from soil and water field studies to determine the leaching processes of nitrogen and phosphorus contaminants from field vegetation into the Dagu River. Using the Gray correlation analysis method, precipitation and irrigation were established as the major driving force behind leaching losses from cultivated land. The type of fertilizers used, and the chemical and physical properties (porosity and bulk density) of soils in the region were set as parent sequences. COD values of nitrogen and phosphorus concentration were calculated from soil and water samples. Also, the depth of core samples was factored into the analysis. The result showed that the supply of soil nitrogen and phosphorus, which were mainly derived from fertilizers, were not generally high levels in Qingdao. According to fuzzy association degree, this investgation confirmed main influencing factors which affected COD, total nitrogen, total phosphorus of soil and groundwater, ammonia nitrogen and nitrate nitrogen of groundwater respectively. And according to these factors the initial vegetable field evaluation index system for non-point source pollution of Dagu River basin was constructed.
Fichier principal
Vignette du fichier
978-3-642-18336-2_86_Chapter.pdf (544.76 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01562774 , version 1 (17-07-2017)

Licence

Attribution - CC BY 4.0

Identifiers

Cite

Jinheng Zhang, Junqiang Wang, Yongliang Lv, Jianting Liu, Dapeng Li, et al.. Study on Vegetable Field Evaluation Index System for Non-Point Source Pollution of Dagu River Basin. 4th Conference on Computer and Computing Technologies in Agriculture (CCTA), Oct 2010, Nanchang, China. pp.706-715, ⟨10.1007/978-3-642-18336-2_86⟩. ⟨hal-01562774⟩
71 View
57 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More