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生态学杂志 ›› 2022, Vol. 41 ›› Issue (6): 1156-1165.doi: 10.13292/j.1000-4890.202206.026

• 研究报告 • 上一篇    下一篇

洞庭湖生态经济区土地利用变化对碳储量的影响

李姣1,2,汪杰1,李朗1*,周翠烟3,牛潜4,张灿明5   

  1. 1湖南师范大学商学院, 长沙 410081; 2宏观经济大数据挖掘与应用湖南省重点实验室, 长沙 410081;3广州市天则区域发展研究中心, 广州 510000; 4中国矿业大学公共管理学院, 江苏徐州 221116; 5亚欧水资源研究和利用中心, 长沙 410013)
  • 出版日期:2022-06-10 发布日期:2022-06-09

Impact of land use change on carbon storage in the Dongting Lake Eco-economic Zone.

LI Jiao1,2, WANG Jie1, LI Lang1*, ZHOU Cui-yan3, NIU Qian4, ZHANG Can-ming5   

  1. (1Business School of Hunan Normal University, Changsha 410081, China; 2Key Laboratory of Macro Economic Big Data Mining and Application of Hunan Province, Changsha 410081, China; 3Guangzhou Tianze Regional Development Research Center, Guangzhou 510000, China; 4School of Public Management of China University of Mining and Technology, Xuzhou 221116, Jiangsu, China, 5ASEM Water Resources Research and Development Center, Changsha 410013, China).
  • Online:2022-06-10 Published:2022-06-09

摘要: 陆地生态系统碳汇在全球碳循环和气候变化中发挥着重要作用,而土地是影响陆地生态系统碳储量的重要因素。以洞庭湖生态经济区为研究对象,基于2005、2010和2015年3期土地利用数据,运用ArcGIS软件和InVEST模型,分析该区域土地利用变化及其对碳储量的影响。结果表明:2005—2015年,洞庭湖生态经济区土地利用类型发生了较大变化,其他林地、水库坑塘、城镇用地、其他建设用地和裸土地面积呈上升趋势;水田、旱地、有林地、灌木林地、疏林地和湖泊面积不断减少;受土地利用变化的影响,2005—2015年间,洞庭湖生态经济区碳储量总体呈下降趋势,由2005年的11.67×108 t降至2015年的11.52×108 t,减少1.28%。通过对碳储量转移矩阵分析发现,农田、林地的减少和建设用地的增加是导致该区域碳储量减少的主要原因。

关键词: 土地利用变化, 碳储量, 洞庭湖生态经济区, InVEST模型

Abstract: Carbon sink in terrestrial ecosystem plays an important role in global carbon cycle and climate change, while land is an important factor affecting the carbon storage of terrestrial ecosystems. In this study, using the ArcGIS software and InVEST model, we analyzed land use changes in the Dongting Lake Eco-economic Zoneand the impact of such changes on carbon storage based on the data in 2005, 2010, and 2015. The results showed that during the period 2005-2015, the land use of the study area had changed greatly. The areas of other woodland, reservoir/pond, urban land, other construction land and bare land increased, while those of paddy field, dry land, forest land, spinney, open woodland and lake decreased. Driven by the land use change, carbon storage of the Dongting Lake Eco-economic Zone showed an general downward trend from 2005 to 2015, from 11.67×108 t in 2005 to 11.52×108 t in 2015, with a reduction of 1.28%. According to the analysis of carbon stock transfer matrix, the main reasons for the reduction of regional carbon storage were the decrease of farmland and forest land as well as the increase of construction land.

Key words: land use change, carbon storage, the Dongting Lake Eco-economic Zone, InVEST model.