YAN Dabin,LI Huimin,CHEN Fang,et al.Analysis of Ecosystem Service Value Under the Influence of Land Development in Low-Slope Hilly Region—A Case Study of Jiangjin District, Chongqing City[J].Research of Soil and Water Conservation,2018,25(06):292-297.
低丘缓坡土地开发影响下生态服务价值损益分析——以重庆市江津区为例
- Title:
- Analysis of Ecosystem Service Value Under the Influence of Land Development in Low-Slope Hilly Region—A Case Study of Jiangjin District, Chongqing City
- Keywords:
- low-slope hilly land; ecosystem service value; exploitation; cultivated land; forestland; construction land
- 分类号:
- X171;F062.2;F301.24
- 摘要:
- 以重庆市江津区的低丘缓坡土地为研究对象，分析了开发为耕地、林地和建设用地的潜力，采用生态服务价值评估方法评价了土地资源综合利用带来的生态环境影响。结果表明：江津区低丘缓坡地的理论潜力面积为137 652.55 hm2，可实现潜力面积为31 428.37 hm2，宜农、宜建和宜林面积分别占低丘缓坡地的74.19%，11.27%和14.53%。低丘缓坡土地开发利用能够优化土地利用结构，改变原有的生态服务价值。其中，生态服务价值贡献最大的土地利用类型为林地，生态服务系统工程中贡献最大的是生物多样性保护；研究区生态服务价值可以增加617.88万元/a，生态服务价值发生了正向变化。低丘缓坡土地开发利用既能合理利用土地资源，又能提升研究区的生态环境承载力。
- Abstract:
- Taking low-slope hilly land in Jiangjin District of Chongqing City as the research object, we analyzed the exploitation potential of agricultural land, forestland and construction land, and by used the ecosystem services value (ESV) to evaluate the eco-environmental impacts of comprehensive land utilization. The results show that the theoretical potential area of low-slope hilly land in Jiangjin District is 137 652.55 hm2, and the realizable potential area is 31 428.37 hm2; the land areas suitable for agriculture, construction and forest account for 74.19%, 11.27% and 14.53%, respectively, in low-slope hilly land. Exploitation of low-slope hilly land can optimize the structure of land use, and alter the original ecosystem service values. The land use type with the largest ESV is forestland, and ecosystem service system engineering has the largest contribution to biodiversity protection. ESV of the study area can occur positive change with the increase of 6.178 8 million yuan per year. The exploitation of low-slope hilly land can not only reasonably utilize land resources, but also improve the eco-environmental carrying capacity in the study area.
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备注/Memo
收稿日期:2018-01-02;改回日期:2018-02-08。
基金项目:重庆市社会事业与民生保障科技创新专项项目“典型城市水体综合治理技术集成研究与工程示范”（cstc2015shms-ztzx20002）；重庆市社会民生科技创新专项项目“海绵城市理念在道路建设中关键技术研究”（cstc2015shmszx30022）
作者简介:鄢大彬(1983-),男,四川德阳人,助理工程师,学士,主要从事农村土地整治措施研究。E-mail:284967467@qq.com
通讯作者:田小松(1985-),男,四川资阳人,高级工程师,硕士,主要从事农业及矿山生态环境破坏机理及治理措施研究。E-mail:419346052@qq.com