郴州市郴江河流域水质与土地利用关联的空间异质性分析

周石松, 汤玉奇, 程宇翔, 邹滨, 冯徽徽

Spatial heterogeneity of the correlation between water quality and land use in the Chenjiang River basin, Chenzhou City

ZHOU Shisong, TANG Yuqi, CHENG Yuxiang, ZOU Bin, FENG Huihui

表1 水质项目含量分类标准

Tab.1 Standard of water quality classification(mg·L-1)

项目/ 分类 I类 (源头水) II类(生 活饮用水) III类(渔 业用水) Ⅳ类(工 业用水) Ⅴ类(农 业用水) TN ≤ 0.20 0.500 1.00 1.5 2.0 TP ≤ 0.01 0.025 0.05 0.1 0.2 NH3-N ≤ 0.15 0.500 1.00 1.5 2.0 COD ≤ 15.00 15.000 20.00 30.0 40.0