湖北农业科学 ›› 2022, Vol. 61 ›› Issue (6): 33-40.doi: 10.14088/j.cnki.issn0439-8114.2022.06.007

• 资源·环境 • 上一篇    下一篇

基于LUCC的南京市生态系统碳储量时空演变预测及多情景模拟分析

郭天, 王之昱   

  1. 河海大学公共管理学院,南京 211100
  • 收稿日期:2021-12-22 出版日期:2022-03-25 发布日期:2022-04-18
  • 作者简介:郭天(1998-),女,安徽铜陵人,在读硕士研究生,研究方向为区域土地利用、土地生态等,(电话)15756030189(电子信箱)tianer0105@126.com。

Prediction and multi-scenario simulation analysis of the temporal and spatial evolution of ecosystem carbon storage in Nanjing based on LUCC

GUO Tian, WANG Zhi-yu   

  1. School of Public Administration,Hohai University,Nanjing 211100,China
  • Received:2021-12-22 Online:2022-03-25 Published:2022-04-18

摘要: 利用Markov-Flus模型和InVEST模型中的Carbon模块,基于多情景视角模拟并预测南京市2030年碳储量变化与空间分布情况。结果表明,2010—2015年南京市土地利用变化以林地转变为耕地为主要趋势;2015—2018年以生态功能用地转化为建设用地为主要趋势。南京市碳储量空间分布总体上表现为南北两侧高、中部低的特点。耕地是区域最主要的碳汇地类。对比多情景模拟结果可知,生态增汇情景下总体碳储量相较自然发展情景增加0.40×106 t,城镇周边生态类用地碳储量增长较为明显;耕地增汇情景下总体碳储量比自然发展情景增加0.61×106 t,除城镇地区外各地区碳储量均增长。预测未来南京市生态系统碳储量会进一步下降,采取耕地保护和生态保护相结合的措施能够有效提升区域陆地生态系统碳储量。

关键词: 碳储量, Markov-Flus模型, InVEST模型, 情景模拟, 南京市

Abstract: Using the carbon module in the Markov-Flus model and the InVEST model, the changes and spatial distribution of carbon storage were simulated and predicted in Nanjing in 2030 based on a multi-scenario perspective. The results showed that the main trend of land use change in Nanjing from 2010 to 2015 was the conversion of forest land to cultivated land; The main trend of land use conversion was from ecological function land to construction land from 2015 to 2018. The spatial distribution of carbon stocks in Nanjing was heterogeneous, with the overall performance being high on the north and south sides and low in the middle. Cultivated land was the main land type for the distribution of carbon storage. Comparing the results of multi-scenario simulations, the overall carbon storage under the ecological increase scenario was 0.40×106 t more than the natural development scenario, and the carbon storage of the ecological land around towns had increased significantly; The overall carbon storage under the cultivated land increase scenario was higher than the natural development scenario. The scenario increased by 0.61×106 t, and carbon storage in all regions except urban areas would increase. It was predicted that the carbon storage of Nanjing would further decline in the future, and the combination of cultivated land protection and ecological protection could effectively increase the carbon storage of the regional terrestrial ecosystem.

Key words: carbon storage, Markov-Flus model, InVEST model, scenario simulation, Nanjing city

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