生猪养殖产业集聚演化的环境效应研究——以嘉兴市辖区为例

被引:12
作者
姚文捷
机构
[1] 浙江工商大学经济学院
关键词
生猪养殖; 产业集聚; 环境效应; 嘉兴市辖区;
D O I
10.13249/j.cnki.sgs.2015.09.010
中图分类号
X713 [畜牧业]; F326.3 [畜牧业、饲养业];
学科分类号
082803 ; 020205 ; 1203 ; 0202 ;
摘要
通过引入区位熵的方法,构建生猪养殖产业集聚演化的环境效应模型,旨在从理论层面揭示出生猪养殖污染本身的特殊性和内在的规律性。以嘉兴市辖区为样本的研究表明,生猪养殖污染集聚程度与生猪养殖产业集聚程度存在的倒U型曲线关系,本质上是生产的环境负外部性效应,以及对其实施纠正措施的演化轨迹。生猪养殖生产的环境负外部性效应曲线在污染治理政策的作用下,随着产业集聚程度的提高由向右上方倾斜而逐渐向下弯曲;在受到耕地资源约束时,会向上平移;在因下弯而减轻的污染集聚程度被因上移而增加的污染集聚程度所抵消并盖过时,污染治理政策则有可能是失效的。因此,生猪养殖污染治理政策的实施,必须将城镇化推进所引起的耕地资源的变化考虑在内。
引用
收藏
页码:1140 / 1147
页数:8
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