摘要
为了指导并控制畜禽粪污对环境的转移，实现畜禽养殖与环境的和谐共存与发展，基于氮磷排放与土地吸收之间的平衡，开展了江苏省畜禽养殖土地承载力的研究.结果表明：以氮为标准，所有农用地全部种植大田作物，畜禽承载力为8635.15万猪单位；全部种植蔬菜作物，则畜禽承载力为15949.07万猪单位；以磷为标准，所有农用地全部种植大田作物，畜禽承载力为5284.90万猪单位，所有农用地全部种植蔬菜作物，则畜禽承载力为8399.21万猪单位；根据江苏省不同地市经济发展程度及限制因素考虑，首次提出南通市和徐州市畜禽实际承载量已超过或接近该地区耕地的承载力，应适当降低畜禽饲养量，而其他地级市则有15%~75%不等的畜禽适宜增长率.
In order to guide and control the diversion of livestock diachorema inflowing environment, and come true the harmonious concomitancy and development between livestock breeding and environment, based on the homeostasis between nitrogen,phosphorus volley and land absorption,the livestock breeding supporting capacity of cropland in Jiangsu Province were studied.The results showed that livestock sup-porting capacity of cropland growing field crops was 8 635.15 thousand pig units in Jiangsu Province with nitrogen standard,and the cropland growing vegetables,the livestock supporting capacity of cropland was 159 490.7 thousand pig units.The livestock supporting capacity of cropland growing field crops was 5 284.90 thousand pig units in Jiangsu Province with phosphorus standard,and the cropland growing vege-tables,the livestock supporting capacity of cropland was 8 3 9 9 .2 1 thousand pig units.The results indicated that the livestock breeding number of Nantong City and Xuzhou City should be cut down,and other cities might have 1 5%~7 5% growth rate.
出处
《甘肃农业大学学报》
CAS
CSCD
北大核心
2013年第6期123-130,共8页
Journal of Gansu Agricultural University
基金
江苏省农业三项工程项目(SXGC[2012]319)
泰州市科技项目(TN201220)
关键词
土地承载力
畜禽养殖
氮磷平衡
江苏省
supporting capacity of cropland
livestock breeding
nitrogen and phosphate homeostasis
