长江流域资源与环境 >> 2023, Vol. 32 >> Issue (2): 415-426.doi: 10.11870/cjlyzyyhj202302017

• 生态环境 • 上一篇    下一篇

安徽省陆地生态系统碳储量变化 对未来土地覆被情景的响应

吴楠1,陈凝1,程鹏1,宋婷2*
  

  1. (1.安徽省生态环境科学研究院,安徽 合肥 230061;2.中国环境科学研究院国家环境保护区域生态过程与功能评估重点实验室,北京 100012)
  • 出版日期:2023-02-20 发布日期:2023-03-09

Evaluation of Carbon Storage on Terrestrial Ecosystem Responses to Land Cover Change under Five Future Scenarios in Anhui Province

WU Nan1, CHEN Ning1, CHENG Peng1, SONG Ting2   

  1. (1. Anhui Provincial Academy of Eco-Environmental Science Research, Hefei 230061, China; 2. State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China)
  • Online:2023-02-20 Published:2023-03-09

摘要: 基于2017年安徽省土地覆被现状,结合文献调研设定碳密度参数。在三条控制线的框架下,构建5种2035年可能的土地覆被情景,据此评估碳储量变化的响应。结果表明:(1)2017年,安徽省陆地生态系统总碳储量为1 005.4 Tg。皖西、皖南山地林区碳储量较高,皖北平原、江淮丘陵的农田和城镇区较低,沿淮、沿江河流湖泊最低;(2)5种情景下,由于建设用地(碳密度较低)的扩张对周边农田和林地(碳密度较高)的占用,总碳储量出现了16~50 Tg的下降,下降幅度取决于建设用地占用类型碳密度的高低。生态修复力度的增强对皖北、江淮和沿江区碳储量损失的减缓效果相对较好;(3)建议国土空间规划中应关注绿色低碳导向的土地利用结构和布局优化,提升城市更新质量,减少碳储量损失。

Abstract: Based on the current status of land cover in Anhui Province in 2017, the carbon density parameters are set in combination with literature research. Under the framework of three control lines, five possible future land cover scenarios in 2035 are constructed to evaluate the response to the change of carbon storage. The results show that: (1) The total carbon storage of terrestrial ecosystems in Anhui Province were 1 005.4 Tg in 2017. The carbon storage of mountain forest areas in Western and Southern Anhui are higher, the farmland and urban areas in Northern Anhui plain and Jianghuai hilly area are lower, and the rivers and lakes along the Huaihe River and the Yangtze River are the lowest. (2) Under the five scenarios, due to the expansion of construction land (lower carbon density) and the occupation of surrounding farmland and forest land (higher carbon density), the total carbon storage decreased by 16~50 Tg. The decline range depends on the carbon density of the type of construction land occupation. The enhancement of ecological restoration has a relatively good effect on reducing the loss of carbon storage in Northern Anhui, Jianghuai and along the Yangtze River areas. (3) It is suggested that the Spatial Planning of National Land should pay attention to the optimization of green and low-carbon oriented land use structure and layout, improve the quality of urban renewal and reduce the loss of carbon storage.

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