河北省县域农田畜禽承载量与畜禽养殖量时空耦合

发布时间：2018-06-29 01:14

本文选题：农田 + 畜禽承载量　；参考：《农业机械学报》2017年03期

【摘要】：通过农作物种植面积计算农田畜禽承载量,并利用各类畜禽产排污系数估算区域畜禽理论养殖量,分析1994、2003、2013年河北省县域农田畜禽承载量与畜禽实际养殖量的变化态势及其耦合关系。研究表明:农作物播种面积呈现小幅波动态势,总量增加了83 663 hm2,以氮元素计的畜禽承载能力提高了108.7万头(猪当量);畜禽实际养殖量先增后减,总量增加了1 102万头(猪当量)。在仅考虑农作物种植面积消纳畜禽粪便的情境下,1994—2003年河北省有69个县市属于畜禽超载状态,有94.24%的县市生态持续衰退;2003—2013年农作物畜禽承载状况改善明显,超载的县市有26个,只占全省的18.7%。基于Ward聚类分析方法,将1994—2013年畜禽养殖量与农作物播种面积变化的耦合类型特征划分为9大区,提出了不同调控对策。
[Abstract]:The bearing capacity of farm livestock and poultry was calculated by crop planting area, and the theoretical breeding quantity of regional livestock and poultry was estimated by using the sewage discharge coefficient of various kinds of livestock and poultry. This paper analyzed the change situation and coupling relationship between the carrying capacity of farm livestock and poultry and the actual quantity of livestock and poultry in Hebei province in 1994 / 2003 and 2013. The results showed that the planting area of crops fluctuated slightly, the total amount increased by 83,663hm2, the carrying capacity of livestock and poultry increased by 1.087 million (pig equivalent), the actual quantity of livestock and poultry increased first and then decreased. The total increased by 11.02 million (pig equivalent). Under the circumstance of only considering crop planting area to absorb livestock and poultry feces, 69 counties and cities in Hebei Province were overloaded from 1994 to 2003, and 94.24% of the counties and cities continued to decline in ecology. The carrying status of crops, livestock and poultry in 2003-2013 was improved obviously. There are 26 overloaded counties and cities, accounting for only 18.710% of the province. Based on Ward cluster analysis method, the coupling type characteristics of livestock and poultry breeding quantity and crop sowing area from 1994 to 2013 were divided into 9 regions, and different control measures were put forward.
【作者单位】：北京农业信息技术研究中心;国家农业信息化工程技术研究中心;
【基金】：国家重点研发计划项目(2016YFD0800900)
【分类号】：X713

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