典型农业小流域面源污染源解析与控制策略——以丹江口水源涵养区为例

龚世飞,丁武汉,居学海,肖能武,叶青松,黄进,李虎

Source Analysis and Control Strategies of Non-Point Source Pollution in Typical Agricultural Small Watershed: A Case Study of Danjiangkou Water Conservation Area

GONG ShiFei,DING WuHan,JU XueHai,XIAO NengWu,YE QingSong,HUANG Jin,LI Hu

表1 各类污染物输出系数

Table 1 Output coefficients of various pollutants

污染源 Pollutant source 污染管控及处理措施 Pollution control and disposal measure 污染物 Pollutant TN TP COD 每人生活污水 Rural sewage per person (kg·a-1) 常规排放 Conventional emission 0.57 0.058 23.36 有水冲厕 Aqua privies 2.04 0.45 13.87 无水冲厕 Dry latrine 0.26 0.04 6.28 土地利用 Land use type (kg·hm-2·a-1) 旱地 Dry land 常规管理 Regular management 25.56 1.79 18.00 保护性耕作、化肥农药等比例减量替代 Conservation tillage、Fertilizer, pesticide and other proportional reduction replacement 3.77 0.38 5.92 林地 Woodland 常规管理 Routine management 3.05 0.16 32.50 生草覆盖 Grass coverage 0.69 0.08 3.37 园地 Garden 常规管理 Normal management 10.21 1.08 24.50 保护性耕作、化肥农药等比例减量替代 Conservation tillage、Fertilizer, pesticide and other proportional reduction replacement 4.56 0.53 2.84 单个畜禽养殖 A single livestock and poultry breeding (kg·a-1) 猪 Pig 水冲清粪 Water nightsoil 0.49 0.08 4.91 干清粪 Dry nightsoil 0.33 0.06 1.09 牛 Cow 干清粪 Dry nightsoil 1.17 0.03 7.96 垫草垫料 Grass breeding 0 0 0 家禽 Poultry 水冲清粪 Water nightsoil 0.012 0.015 0.275 干清粪 Dry nightsoil 0.004 0.007 0.120 羊 Sheep 干清粪 Dry nightsoil 0.230 0.045 0.440 垫草垫料 Grass breeding 0 0 0