基于生态系统服务价值的曹妃甸新区土地利用空间优化
2016-10-19袁殷马丽梅王晖张乐
袁殷 马丽梅 王晖 张乐



摘要:以曹妃甸新区为例,提出了基于生态服务价值的土地利用空间优化方法,运用RS与GIS技术,采用最小积累阻力模型,模拟曹妃甸新区生态保护用地和城乡建设用地扩张过程,合理的划分土地空间分布格局并提出各区域的管制要求。结果表明,曹妃甸新区生态系统服务价值整体上由北向南分异明显,呈现中、高、低分布趋势。区域可分为重点保护区、一般保护区、适宜建设区、优化建设区,面积分别为214.39、809.42、499.11、424.91 km2,结果突出了生态系统服务价值的空间差异,完善了土地空间优化方法。
关键词:生态系统服务价值;土地利用;最小积累阻力模型;曹妃甸新区
中图分类号:F301 文献标识码:A 文章编号:0439-8114(2016)08-1968-06
DOI:10.14088/j.cnki.issn0439-8114.2016.08.015
Abstract: In order to better coordinate the contradiction between economic development and ecological protection,taking Caofeidian new district as an example, using RS and GIS technology, the paper presents the partition method of land space based on ecosystem service value. We used the minimum resistance model to simulate the expansion process of urban construction land and ecological protection land and predicted the reasonable land spatial distribution pattern and the regional regulatory requirements. The results showed that:the ecosystem service value of Caofeidian New District showed obvious differentiation from north to south with high,medium and low distribution. The total area could be divided into four parts:Key protected zone, general protection region, construction-suitable zone and construction optimized zone. The area was 214.39, 809.42,499.11,424.91 km2, respectively. The results highlight the spatial differences in ecosystem service valueand improved the land space partition method, which was significant for the sustainable land use in Caofeidian new district.
Key words:ecosystem service value;land use;minimum accumulation resistance model;Caofeidian new district
生態系统服务为人类提供医药、食物以及生活所需的其他生产原料,形成和维持人类赖以发展和生存的环境和效用,同时还具有净化环境、维持地球生物化学循环、维护和支撑物种及遗传多样性等作用[1-3]。生态系统服务价值的退化和丧失越来越威胁到人类的健康和安全。随着全球环境保护意识的不断增强与资源的过度利用,生态系统服务价值不断地退化和丧失,已经威胁到人类的健康和安全,乃至全球的生态安全[4-6],已成为国际生态学研究的前沿和热点,将为区域性环境问题的有效解决和可持续发展提供积极的科技支撑。生态系统服务价值作为生态系统服务研究的重要方面之一,是量化和评价生态服务功能强弱的重要方法[7-9]。……
