家畜生态学报2017，Vol.38Issue(12)：73-77,96,6.
黄土高原畜禽养殖结构及土地承载力分析——以甘肃省庆阳市为例
Analysis on Structure of Livestock and Poultry Farming and Land Carrying Capacity of Loess Plateau——Take Qingyang City of Gansu Province as An Example
摘要
Abstract
To investigate current status of waste pollution from livestock and poultry farming on Loess Plateau,Qingyang city,“the first world original loess”,was taken as an example to study its impact on farmland and water quality in different districts and counties.Based on the statistics yearbook from 2010 to 2015 in Qingyang and the estimation method of the amount of livestock manure emissions and animal fecal excretion coefficients,we estimated the amount of the annual livestock manure and main pollutants in 2015.According to the pollution causes of various agricultural non-point sources,some countermeasures and suggestions have been put forward to solve different issues.The study results showed that the total e-mission and urine of livestock and poultry was about 4.7706 million tons and 1.6671 million tons respectively,and the emissions of cattle were relatively high,accounting for 43.37％,with that of sheep and pig for 27.31％ and 2.55％.The COD,TP and TN were 23 800 t,15 100 t and 5 900 t,respectively.The load alarm value of farmland reached grade Ⅱ in one county only,which posed basically no threat to the environment,and its farmland has some space for the carrying capacity.关键词
畜禽粪便负荷量/承载力/风险评估/生态环境Key words
livestock and poultry manure load/carrying capacity/risk assessment/ecological environment分类
农业科技引用本文复制引用
刘刚,张春义,赵福平,李世恩,高钰,施海娜,赵俊金,刘丑生..黄土高原畜禽养殖结构及土地承载力分析——以甘肃省庆阳市为例[J].家畜生态学报,2017,38(12):73-77,96,6.基金项目
国家家养动物资源平台(2017) （2017）
