摘要
运用GIS技术及SPSS统计分析的方法,探讨了芦山县清源河流域土地景观格局对河流水质的影响,并分析了丰水期、平水期和枯水期土地景观格局与河流水质的关系。结果表明:(1)林地、湿地和草地与河流水质呈显著负相关;耕地和建设用地以及LC与河流水质呈显著正相关;(2)景观格局指数PD、FN和SHDI与河流水质呈显著正相关;LPI和CONTAG与河流水质呈显著负相关;(3)总体分析看出枯水期土地景观格局对河流水质的影响较丰水期更为显著,丰水期下游区域(4#、5#和6#区域)土地景观格局对河流水质影响比上游区域(1#、2#和3#区域)大。
This paper, with the support of GIS and SPSS, discusses the effects of land-use and landscape pattern on water quality of Qingyuan River watershed in Lushan County, and analyzes the correlation between landscape pattern and water quality in wet season, normal season and dry season respectively. Through analysis of data acquired, conclusions are reached as follows:(1) woodland, wetland and grassland are significantly negatively correlated with water quality while arable land, construction land and LC are significantly positively correlated with water quality;(2) landscape pattern indicators, PD, FN and SHDI are significantly positively correlated with water quality and LPI and CONTAG are significantly negatively correlated with water quality;(3) generally speaking, the effect of landscape pattern on water quality in dry season is stronger than that in wet season, and in wet season, landscape pattern of downstream areas (i.e. area 4#, 5# and 6#) poses a stronger effect on water quality comparing with upstream areas (i.e. area 1#, 2# and 3#).
作者
彭勃
付永胜
赵君凤
周高峰
PENG Bo;FU Yongsheng;ZHAO Junfeng;ZHOU Gaofeng(Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, China)
出处
《生态科学》
CSCD
2019年第3期90-99,共10页
Ecological Science
基金
四川省科技厅重大科技专项课题(2018SZDZX0026)
四川省科技厅科技支撑项目(2015SZ0202)
关键词
土地利用
景观格局
流域
水质
land-use
landscape pattern
watershed
water quality
