多适应目标下的山地城市社会—生态系统脆弱性评价

发布时间：2018-01-15 18:28

本文关键词：多适应目标下的山地城市社会—生态系统脆弱性评价　出处：《地理研究》2016年02期 　论文类型：期刊论文

【摘要】：面对全球环境变化,识别社会—生态系统脆弱性是可持续性研究的核心议题。山地城市发展条件受地形、建设用地和生态环境等因素的制约,其人地关系更为脆弱,国土空间开发与保护需要权衡。针对人类—环境耦合系统的脆弱性评价存在时空精度较粗、目标过于含糊的问题,以秦岭山地的商洛市为例,基于主体功能区划方案设置不同适应目标,构建包括32个指标42项数据的山地城市社会—生态系统脆弱性评价体系。结果表明:在空间差异上,柞水县的脆弱性程度较低,洛南县脆弱性程度最高;在1997-2013年间,脆弱性低值样本随时间变化有所升高,高值样本于2003-2008年间达到峰值;全市域脆弱性空间差异存在先增加后减少的趋势,并在2013年差异达到最小,区域差距有所缓和。在多适应目标下,商州区在重点开发导向下脆弱性最低,而柞水县、镇安县和商南县等更适于限制开发导向,不同适应目标导向会对脆弱性评价结果产生影响。在较高时空精度上探讨山地城市社会—生态系统的脆弱性,可为区域可持续发展提供定量指引,采用的多适应目标情景设置可以作为区域社会发展评价研究的一种新思路。
[Abstract]:In the face of global environmental change, identifying the vulnerability of social-ecosystem is the core issue of sustainability research. The development conditions of mountainous cities are restricted by terrain, construction land and ecological environment. The human-land relationship is more fragile, land and space development and protection need to be weighed. The vulnerability assessment of human-environment coupling system has the problems of coarse space-time accuracy and vague objectives. Taking Shangluo City in Qinling Mountains as an example, different adaptation objectives are set based on the main function zoning scheme. The evaluation system of social-ecosystem vulnerability in mountainous cities including 32 indexes and 42 items was constructed. The results showed that the vulnerability degree was lower in tussah county and the highest in Luonan county. In 1997-2013, the low value samples of vulnerability increased with time, and the high value samples reached the peak in 2003-2008. The spatial differences of vulnerability in the whole city increased first and then decreased, and in 2013 the difference reached the minimum, the regional gap eased. Under the multi-adaptation goal, the vulnerability of Shangzhou District is the lowest under the guidance of key development. Tussah County, Zhenan County and Shangnan County are more suitable for limiting the development direction. Different orientation of adaptation goals will have an impact on vulnerability assessment results. In order to provide quantitative guidance for regional sustainable development, the vulnerability of social-ecosystem in mountainous cities can be discussed in higher spatio-temporal accuracy. The multi-adaptive scenario setting can be used as a new way to evaluate the regional social development.
【作者单位】：西北大学城市与环境学院;
【基金】：陕西省自然科学基金项目(2014JM5209) 陕西高校人文社会科学青年英才支持计划(HSSTP)
【分类号】：F299.27;X22
【正文快照】： 1引言全球环境变化对地方可持续性发展产生了一系列挑战,整化人类与自然耦合系统中的多重变量,明晰社会—生态系统(social-ecological systems,SES)中社会经济与生态环境要素的交互作用,是应对气候变化、生物多样性减少、水资源短缺、物种入侵、能源与粮食安全等一系列风险胁

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