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河流水质与土地利用及河道结构特征关系的对比分析(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2015年02期
Page:
91-96
Column:
研究论文
publishdate:
2015-04-01

Article Info:/Info

Title:
Correlations analysis of river water quality with land use and river structure
Article ID:
1000-2006(2015)02-0091-06
Author(s):
JIANG Xujuan12 LIU Maosong1* CHEN Fenfei3 ZHONG Jingjing1 ZHOU Yaxing1
1.School of Life Sciences, Nanjing University, Nanjing 210093, China;
2.Tianjin Marine Environmental Monitoring Center, SOA, Tianjin 300457, China;
3.Power China Huadong Engineering Corporation Limited, Hangzhou 310014, China
Keywords:
river water quality land use river structure generalized linear models
Classification number :
X522
DOI:
10.3969/j.issn.1000-2006.2015.02.016
Document Code:
A
Abstract:
To comprehensively understand the response of water quality to riparian land use pattern and streambed structure, we examined the correlation between seven water quality indicators and seven landscape/environmental variables in a section of Oujiang River. Correlation analysis was conducted at nine spatial scales from 100 m to 900 m using generalized linear models. The results showed that the water quality indicators, except for suspended solids and nitrate nitrogen, generally varied significantly by spatial location. Among land use types, cropland had relatively high explanatory power for concentration of suspended solids and orthophosphate in the river; total phosphorus and ammonia nitrogen was mostly explained by beach; while nitrate nitrogen was correlated with sandpit. Overall, riparian land use pattern and streambed structure had different explanatory power for phosphorus and nitrogen in the water. Nitrogen in the river was mostly influenced by streambed structure, and concentration of phosphorus was mainly determined by riparian land use pattern.

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Last Update: 2015-03-31