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现代地质 ›› 2024, Vol. 38 ›› Issue (03): 574-588.DOI: 10.19657/j.geoscience.1000-8527.2024.050

• 表生资源观测模拟与预测评价 • 上一篇    下一篇

基于PLUS模型和InVEST模型的新安江流域生态系统碳储量时空变化分析与预测

闵婕1(), 刘晓煌2,3(), 肖粤新2,4,5, 李洪宇2,3, 雒新萍2,3, 王然2,3, 邢莉圆2,3, 王超3, 赵宏慧3   

  1. 1.新疆大学地理与遥感科学学院,新疆 乌鲁木齐 870000
    2.自然资源部自然资源要素耦合过程与效应重点实验室,北京 100055
    3.中国地质调查局自然资源综合调查指挥中心,北京 100055
    4.黄山水土资源野外科学观测研究站,安徽 黄山 245000
    5.中国地质调查局长沙自然资源综合调查中心,湖南 长沙 410600
  • 出版日期:2024-06-10 发布日期:2024-07-04
  • 通讯作者: 刘晓煌,男,博士,正高级工程师,1972年出生,新疆维吾尔自治区“天池英才”引进计划人才,主要从事自然资源观测研究。Email: liuxh19972004@163.com。
  • 作者简介:闵婕,女,硕士研究生,1999年出生,主要从事自然资源学、地理信息系统和遥感技术应用研究。Email:17856001096@163.com
  • 基金资助:
    中国地质调查局“自然资源观测监测一体化技术体系研究项目”(DD20230514);中国地质调查局自然资源综合调查指挥中心科技创新基金(KC20220015);中国地质科学院地球物理地球化学勘查研究所中央级公益性科研院所基本科研业务费专项资金资助项目(AS2022P03);水利部黄河流域水治理与水安全重点实验室(筹)研究基金(2023-SYSJJ-09);山西省煤炭地质物探测绘院有限公司地质灾害监测预警与防治山西省重点实验室开放课题(2023-S03);中国地质调查局项目“江南丘陵区自然资源与地表基质监测观测评价”(DD20230515)

Analysis and Predictions of the Spatiotemporal Variations of Ecosystem Carbon Storages in the Xin’an River Basin Based on PLUS and InVEST Models

MIN Jie1(), LIU Xiaohuang2,3(), XIAO Yuexin2,4,5, LI Hongyu2,3, LUO Xinping2,3, WANG Ran2,3, XING Liyuan2,3, WANG Chao3, ZHAO Honghui3   

  1. 1. College of Geography and Remote Sensing Science, Xinjiang University, Urumqi, Xinjiang 870000, China
    2. Key Laboratory of Natural Resource Coupling Process and Effects, Ministry of Natural Resources, Beijing 100055, China
    3. Natural Resources Comprehensive Survey Command Center, China Geological Survey, Beijing 100055, China
    4. Observation and Research Station of Land and Water Resources in Huangshan, Huangshan, Anhui 245000, China
    5. Changsha Comprehensive Survey Center of Natural Resources, China Geological Survey, Changsha, Hunan 410600, China
  • Online:2024-06-10 Published:2024-07-04

摘要:

探析碳储量的时空格局演化规律,对新安江流域生态环境保护、土地利用方式优化具有积极反馈作用。基于2000—2020年土地利用数据,采用InVEST模型对2000—2020年新安江流域土地利用变化及碳储量变化情况进行分析,同时运用PLUS模型预测不同发展情景下2040年新安江流域碳储量分布。结果显示:(1)土地利用变化直接影响研究区的碳储量。2000—2020年,新安江流域建设用地扩张602.707 km2,林地、耕地、草地和灌木分别减少615.225 km2、42.640 km2、3.021 km2和0.296 km2,碳储量减少4.937×106 t;碳储量与土地利用空间分布一致,碳储量较高区域的建设用地少、生态用地集聚连片且分布较多。(2)2040年多情景模拟显示,整体土地利用格局一致,局部变化明显。城镇发展、自然发展和耕地保护情景碳储量分别下降7.540×106 t、7.544×106 t和11.302×106 t,其中在生态保护情景下,碳储量下降最少(7.130×106 t)。(3)碳储量空间分异受地形、生态和人为因素影响。地理探测器表明,NDVI(0.561)和NPP(0.398)的解释力显著高于其他因子,是新安江流域碳储量空间分异的主要驱动因子。不同影响因子间的交互作用强于单一因子,其中NDVI与坡度的协同影响类型最强(0.652)。研究结果表明,采取城镇发展和生态保护政策可控制碳储量减少,在未来规划中,应保护生态用地,控制建设用地扩张,以提高碳储量水平。

关键词: 新安江流域, 土地利用变化, PLUS模型, InVEST模型, 碳储量, 地理探测器

Abstract:

The study on the spatiotemporal evolution of carbon storage in the Xin’an River Basin has demonstrated positive feedback on the ecological environmental protection and land-use optimization.We utilize the land-use data from 2000 to 2020 and the InVEST model to scrutinize the historical changes of land-use and alterations of carbon storage in Xin’an River Basin.Meanwhile, the PLUS model was utilized to forecast the distribution of carbon storage in the same basin in 2040 under multiple development scenarios.The results indicate that (1) the change of land-use has a direct impact on the carbon storage in the study area.From 2000 to 2020, the construction land in Xin’an River Basin expanded by 602.707 km2, while the forest land, cultivated land, grassland, and shrub land decreased by 615.225 km2, 42.640 km2, 3.021 km2, and 0.296 km2, respectively.This resulted in a reduction in carbon storage of 4.937×106 t.Carbon storage is intrinsically related to the spatial distribution of land-use, with an area of higher carbon storage having a less construction land but more clustered and distributed ecological land.(2) The multi-scenario simulation for the year of 2040 reveals that the local changes are pronounced, while the overall land-use pattern remains consistent.The carbon storage under urban development, natural development, and farmland protection scenarios decreased by 7.540×106 t, 7.544×106 t, and 11.302×106 t, respectively.The eco-protection scenario predicted the smallest decrease in carbon storage, up to 7.130×106 t.(3) The spatial differentiation of carbon storage was influenced by topography, ecology, and anthropogenic factors.Geodetector revealed that the explanatory power of NDVI (0.561) and NPP (0.398) was significantly higher than other factors, making them the primary drivers of the spatial differentiation of carbon storages in Xin’an River Basin.The interactions between different influencing factors were stronger than a single factor, with the synergistic influence between NDVI and slope (0.652) being the most potent one.We conclude that the implementation of urban development and ecological protection strategy can mitigate the reduction of carbon storage.Future plans should prioritize the protection of ecological land and controlling the expansion of construction land in order to enhance the carbon storage.

Key words: Xin’an River Basin, land use, PLUS, InVEST, carbon storage, geodetector

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