DOI:10.12401/j.nwg.2023103
榆林市生态系统固碳价值对林地系统结构的响应变化
张凡1 ,田旭荣1 ,薛彤1 ,林永航1 ,齐佳敏1 ,张鹏飞2 ,张茂省1
(1. 西安交通大学人居环境与建筑工程学院,陕西 西安 712000;2. 榆林市自然资源和规划局,陕西 榆林 719000)
摘 要:将生态资源纳入经济体系统筹管理是环境可持续发展的必然要求。对于生态脆弱地区,
加强环境压力变化下的资源管理尤为重要。笔者从系统结构的角度理解生态系统固碳功能变化
特征,在榆林地区结合景观结构指数对固碳功能进行空间分析。2000~2020年榆林市生态系统
固碳服务价值持续增加,2000~2010年增长较快,2010~2020年增速减缓。在空间分布方面,单
位面积固碳价值从东南向西北递减,东南部的增长速率也更快。工业活动是形成榆林市生态系
统固碳价值西北、东南分划的主要因素,东南部区县受生态系统结构变化的影响更强。研究结
果表明,在生态脆弱区实施生态建设和修复工程时,应综合考虑生态系统的结构性以提高地区
生态系统潜在的功能性。
关键词:生态系统服务;固碳价值;系统结构;生态脆弱区
中图分类号:P69;F205 文献标志码:A文章编号:1009-6248(2023)03-0051-07
Response of Ecosystem Carbon Fixation Value to Forest System Structure in Yulin City
ZHANG Fan1,TIAN Xurong1,XUE Tong1,LIN Yonghang1,QI Jiamin1,ZHANG Pengfei2,ZHANG Maosheng1
(1. School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 712000, Shaanxi, China;2. Yulin Bureau of
Natural Resources and Planning, Yulin 719000, Shaanxi, China)
Abstract:It is an inevitable requirement of environmentally sustainable development to bring ecological re-
sources into the overall management of the economic system. For ecologically fragile areas, it is particularly im-
portant to strengthen resource management under changing environmental pressures. This paper attempts to un-
derstand the change characteristics of carbon fixation function of ecosystem from the perspective of system
structure, and carries out spatial analysis of carbon fixation function in Yulin area combined with landscape
structure index. From 2000 to 2020, the carbon sequestration service value of Yulin’s ecosystem continued to in-
crease, and the growth rate was fast in 2000~2010 and slowed down in 2010~2020. In terms of spatial distri-
bution, the carbon sequestration value per unit area s decreases from southeast to northwest, and the growth rate
in southeast is also faster. Industrial activities are the main factor to form the northwest and southeast division of
carbon sequestration value of Yulin, and the southeast counties are more affected by the change of ecosystem
structure. The results of the study suggest that we should comprehensively consider the structure of the ecosys-
tem to improve the potential functionality of the regional ecosystem when implementing ecological construction
and restoration projects in the ecological fragile areas in the future.
收稿日期:2023-02-16;修回日期:2023-05-23;责任编辑:吕鹏瑞
基金项目:国家自然科学基金面上项目(42173019)资助。
作者简介:张凡(1978−),女,副教授,博士,从事生态评价研究工作。E−mail:zhangfan@xjtu.edu.cn。
第 56 卷 第 3 期西 北 地 质Vol. 56 No. 3
2023 年 (总229期)NORTHWESTERN GEOLOGY 2023(Sum229)