基于MaxEnt模型的生态系统文化服务空间分异及其对环境要素的响应分析—以陕北榆林市为例
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长安大学土地工程学院

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Spatial differentiation in cultural ecosystem services and their responses to environmental features based on MaxEnt model: Case study of Yulin City in Northern Shaanxi
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School of Land Engineering, Chang’an University

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The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    生态系统文化服务(CES)是反映生态系统与人类福祉交互作用的重要表征。以地处陕北黄土高原的榆林市为例,结合社交媒体数据识别区域CES分布点,基于MaxEnt模型实现CES分布适宜性量化评估,探究区域CES空间分布与集聚特征,应用刀切法检验环境要素的重要程度及CES对要素的响应变化。结果表明:①各类CES空间分布不均衡,空间适宜性差异显著。高适宜区集中在城市中心区与道路沿线区域。②环境要素的累计贡献率排序为:距道路距离>土地利用类型>距水体距离>植被覆盖度>高程>坡度>距乡镇中心距离,道路是影响CES空间分布的主导因素。③各类CES对环境要素的响应区间存在差异。距道路距离在1km以内、距水系距离在2km以内、土地利用类型为建设用地时,CES分布多处在高适宜区间。MaxEnt模型是揭示CES空间分异规律的重要工具,评估结果为规划导向下的CES空间布局与环境要素改善提供了有效决策建议。

    Abstract:

    Cultural ecosystem services (CES) play a significant role in illustrating the reciprocal interaction between ecosystems and human well-being. In the context of rapid social and economic development, the relationship between ecosystems and multiculturalism is constantly weakened, and in-depth study of CES connotation theory is the basic guarantee for promoting the optimal management of ecosystems and maintaining sustainable social and economic development. Taking Yulin City as a case study, situated on the Loess Plateau in northern Shaanxi. Accompanied by the complex geological terrain and diverse climate changes in the region, Yulin City is facing serious problems such as backward economic development, serious soil erosion and ecological environment deterioration, and has become one of the typical ecologically fragile and poverty-stricken regions in China. This research utilized social media data to identify the points of CES, quantitatively assess the CES distribution suitability, and explore its spatial distribution and agglomeration characteristics based on MaxEnt modeling. Jackknife method was also applied to test the importance of environmental features and the response changes of CES. The results show that: ① The spatial distribution of various CES is uneven, and the spatial adaptation effect is significantly different. Spatial adaptation was the highest for aesthetics and worst for education. High-appropriate areas are concentrated in the city centre and along the roads. The spatial agglomeration characteristics of the subcategories of CES share the same characteristics as the total CES and each has its own characteristics. ② The cumulative impact of environmental features is in the following order: distance from road> land use> distance from water>NDVI> DEM>slope> distance from town center. The distance from road is the dominant feature affecting the amount of CES spatial distribution appropriateness. ③ There are differences in the response intervals of various CES to environmental features. Specifically, when within a 1 km radius of the road, within a 2 km radius of water, and when the land use is construction, the spatial distribution appropriateness of CES predominantly falls within the high range. MaxEnt model is an important tool to reveal the spatial differentiation law of CES, and the evaluation results provide effective decision-making suggestions for the improvement of CES spatial layout and environmental features under the guidance of planning. The subsequent phase of research could involve integrating the participatory mapping evaluation approach, which incorporates human subjective perceptions into CES assessment. Enabling a rational assessment of CES through a combination of quantitative methods of modelling and qualitative data from surveys.

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李林汝,员学锋,张瑞娜,张雨洁.基于MaxEnt模型的生态系统文化服务空间分异及其对环境要素的响应分析—以陕北榆林市为例.生态学报,,(). http://dx. doi. org/[doi]

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