景边型传统村落景观格局及生态系统服务价值演变研究——以桂林旧县村为例

Landscape Pattern and Ecosystem Service Value Evolution of Traditional Villages in the Landscape: Taking Jiuxian Village of Guilin as an Example

  • 摘要: 系统梳理景边型传统村落景观格局与生态系统服务价值(ESV)的关联关系,是促进乡村旅游发展,推进乡村生态振兴的关键一环。本文以广西壮族自治区桂林市漓江风景名胜区景边型传统村落旧县村为例,以2005、2010、2015、2020年4期遥感影像为基础,选取景观格局指数,在修正单位面积生态系统服务价值当量表的基础上,对旧县村2005—2020年景观格局与生态系统服务价值变化展开研究,并进行相关性分析。结果表明:2005—2020年旧县村景观格局变化显著,其中建设用地、河流水面面积增加,林地、耕地、草地、未利用地面积缩减。受旅游开发影响,建设用地不断扩张且呈散布化趋势,使得研究区景观格局朝着破碎化、异质性方向发展。旧县村ESV整体上呈逐年增长态势,调节服务是区域主要的生态系统服务功能,区域各ESV价值量排序为调节服务 > 支持服务 > 供给服务 > 文化服务。景观格局指数与ESV具有显著相关性,各指数对于ESV的影响程度不同。因此,合理调整关键景观格局特征可提高区域生态系统服务效应。

     

    Abstract: Systematically sorting out the correlation between landscape pattern and ecosystem service value (ESV) in traditional villages in the landscape is a key part of promoting rural tourism development and rural ecological revitalization. This paper takes Jiuxian Village, a traditional village of Li River Scenic Area, Guangxi Zhuang Autonomous Region, as an example. Based on the remote sensing images of 2005, 2010, 2015 and 2020, the landscape pattern index is selected, and the change of landscape pattern and ecosystem service value from 2005 to 2020 in Jiuxian Village is studied, and correlation analysis is conducted on the basis of the revised ecosystem service value equivalent table per unit area. The results show that:The landscape pattern of Jiuxian Village changes significantly from 2005 to 2020, including an increase in the area of construction land and river water surface, and a decrease in the area of forest land, cultivated land, grassland and unused land. Under the influence of tourism development, construction land is expanding and scattering, making the landscape pattern of the study area develop towards fragmentation and heterogeneity. The ESV of Jiuxian Village as a whole has been increasing year by year, and regulating services are the main ecosystem service function in the region, and the value of each ESV in the region is ranked as regulating services > supporting services > supplying services > cultural services. The landscape pattern index is significantly correlated with ESV, and each index has a different degree of influence on ESV. Therefore, reasonable adjustment of key landscape pattern characteristics can improve the effect of regional ecosystem services.

     

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