期刊论文

中文

长江流域资源与环境

1004-8227

2011

20

1

73-78

国家自然科学基金资助项目(30972118);国家十一五支撑计划(2008BADA7B00，2008BADC4B08);湖南省重大专项(2009FJ1005);湖南省自然学科基金资助项目(08JJ3080)

本校为其他机构

洞庭湖湿地是长江中游重要的生态功能区,其生态功能的退化制约了湖区经济的可持续发展.近些年来,随着湖区集约化畜牧业的迅速发展,畜禽粪尿等排泄物对湖区生态环境构成了严重威胁.从畜禽养殖量,粪尿等污染物的年排泄量,粪便猪粪当量及负荷量,土地畜禽粪便负荷承受程度4个方面估算并分析了洞庭湖各县(市区)畜禽养殖业的环境威胁性.结果表明:2007年洞庭湖区各类畜禽粪尿排泄总量为3 172.79万t,相当于猪粪当量2 921.13万t.全年畜禽粪尿流失总量达1 110.48万t.畜禽排泄物中年流失化学需氧量50.80万t,氨氮7.81万t.从畜禽粪便负荷量警报值及分级结果看,畜禽排泄物对岳阳楼区,汩罗市的环境威胁比较严重...

As the most important Eco-functional districts of the middle reaches of the Yangtze River,Dongting Lake wetland＇s ecological functions restrict the sustainable development of economy in this area.With the rapid development of husbandry,the waste from livestock seriously threatens to the ecological environment of regional lake.Judging from the amount of livestock and poultry,environmental threats from excretions of livestock and poultry in Dongting Lake counties（urban）were estimated and analyzed in this study,which included the amount of live...