Objective The evolution of land use and its impact on carbon storage were investigated, in order to provide a scientific basis for maintaining regional carbon balance and improving regional carbon storage. Methods The PLUS-InVEST model was employed to analyze the spatiotemporal characteristics of carbon storage in Leshan City from 2000 to 2020. The carbon storage under the natural development scenario and the ecological protection scenario in 2030 was predicted. Finally, the center-of-gravity shift model was used to explore the spatial variation of the center of gravity of carbon storage. Results ① From 2000 to 2020, carbon storage in the city showed an increasing trend, with a total increase of 2.33×10⁶ t. The contributions of different land use types to carbon storage were ranked as follows: forest land > construction land > water bodies > grassland > unused land > cultivated land. ② In 2030, carbon storage under both scenarios was projected to show an increasing trend. Specifically, it was expected to increase by 2.43×10⁶ t under the natural development scenario and by 2.58×10⁶ t under the ecological protection scenario. ③ Over the past 20 years, the center of gravity of carbon storage in the city shifted westward by 3 121.86 m, with the movement occurring within the Shawan District. Under the natural development and ecological protection scenarios, the center of gravity of carbon storage moved within the Shawan District, shifting 1 236.62 m to the southeastward and 4 226.55 m to the northeastward, respectively. Conclusion Land use change and carbon storage change are consistent, and land types with strong carbon sequestration capacity have a significant impact on carbon storage. Regional ecological environmental protection can be achieved by controlling the transfer of these land types.
文献参数: 杨茹荔, 罗怀良, 桑子榕.基于PLUS-InVEST模型的四川省乐山市碳储量时空变化及预测[J].水土保持通报,2026,46(1):260-270. Citation:Yang Ruli, Luo Huailiang, Sang Zirong. Spatiotemporal variation and prediction of carbon storage in Leshan City of Shichuan Province based on PLUS-InVEST model [J]. Bulletin of Soil and Water Conservation,2026,46(1):260-270.
式中:Ci-total表示第i类土地利用类型的总碳储量; Ai 表示第i类土地利用类型的面积。为了较少误差,本研究优先选择乐山市周边地区和同一气候区的研究结果[23-24],采用Giardina等[25]和Alam等[26]提出的公式对其进行修正,结果详见表1。
1.3.2 PLUS模型
PLUS模型(patch-level land use simulation model)是一种基于斑块的土地模拟预测模型,包括土地扩张分析策略模块(land expansion analysis strategy, LEAS模块)、基于多类型随机斑块种子的CA模型(CA based on multiple random seeds, CARS模块)和Markov模型[27]。其中通过LEAS模块,叠加研究区初期和末期的土地利用数据,利用随机森林算法(RFC),可以生成某一区域各地类的潜在发展规律;CARS模型能结合土地利用需求分析和竞争机制,通过设置不同情景下相应的邻域权重和转移成本矩阵,展开各情景下土地利用仿真模拟分析,揭示不同情景下土地利用变化趋势。
YangJie, XieBaopeng, ZhangDegang. Spatio-temporal evolution of carbon stocks in the Yellow River basin based on InVEST and CA-Markov models [J]. Chinese Journal of Eco-Agriculture, 2021,29(6):1018-1029.
[3]
陈妍,乔飞,江磊.基于 In VEST 模型的土地利用格局变化对区域尺度生境质量的影响研究: 以北京为例[J].北京大学学报(自然科学版),2016,52(3):553-562.
[4]
ChenYan, QiaoFei, JiangLei. Effects of land use pattern change on regional scale habitat quality based on InVEST model: A case study in Beijing [J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2016,52(3):553-562.
PanTao, WuShaohong, DaiErfu, et al. Spatiotemporal variation of water source supply service in three rivers source area of China based on InVEST model [J]. Chinese Journal of Applied Ecology, 2013,24(1):183-189.
LinTong, YangMuzhuang, WuDafang, et al. Spatial correlation and prediction of land use carbon storage based on the InVEST-PLUS model: A case study in Guangdong Province [J]. China Environmental Science, 2022,42(10):4827-4839.
ZhiFei, ZhouZhenhong, ZhaoMing, et al. Temporal and spatial evolution characteristics of carbon storage in Hefei ecosystem based on PLUS and InVEST models [J]. Journal of Soil and Water Conservation, 2024,38(2):205-215.
LiYue, LuoHongfen. Spatio-temporal changes of ecosystem carbon storage in Puding County of central Guizhou Province based on InVEST model [J]. Science of Soil and Water Conservation, 2023,21(4):28-35.
YangZhikai, ZuoQiting, BaYinji, et al. Temporal and spatial evolution and correlation analysis of carbon stocks-water production in Qinhe River basin based on InVEST model [J]. Yellow River, 2025,47(3):1-9.
ShengYan, QinFucang, LiuLinfu, et al. Evolution and driving mechanisms of soil conservation function in Pisha sandstone area of the Yellow River basin based on the InVEST model [J]. Journal of Northwest Forestry University, 2024,39(3):144-152.
LiangTian, HuangXi, YangFei, et al. Evolution and prediction of habitat quality in the Three Gorges reservoir (Chongqing section) based on the InVEST-PLUS model [J]. Resources and Environment in the Yangtze Basin, 2023,32(10):2184-2195.
ShiJianli, ZhongJuntao, LiuMeijuan. Spatiotemporal evolution and driving factors of soil conservation function in Qilian Mountains based on InVEST model [J]. Bulletin of Soil and Water Conservation, 2024,44(2):455-464.
ZhouPeifang, ZhouTao, LiuXia, et al. Estimation of soil organic carbon and its uncertainty in Qinghai Province [J]. Progress in Geography, 2022,41(12):2327-2341.
ZhuNingning, YangBisheng, DongZhen, et al. A novel framework for forest vegetation carbon stock estimation based on remote sensing [J]. National Remote Sensing Bulletin, 2025,29(1):134-146.
RenYinming, LiuXiaoping, XuXiaocong, et al. Multi-scenario simulation of land use change and its impact on ecosystem services in Beijing-Tianjin-Hebei region based on the FLUS-InVEST model [J]. Acta Ecologica Sinica, 2023,43(11):4473-4487.
MaoYongfa, ZhouQigang, WangTao, et al. Spatial-temporal variation of carbon storage and its quantitative attribution in the Three Gorges reservoir area coupled with PLUS-InVEST geodector model [J]. Resources and Environment in the Yangtze Basin, 2023,32(5):1042-1057.
WusimanjiangParuke, AiDong, FangYishu, et al. Spatial and temporal evolution and prediction of carbon storage in Kunming City based on InVEST and CA-Markov model [J]. Environmental Science, 2024,45(1):287-299.
WangBaosheng, LiaoJiangfu, ZhuWei, et al. The weight of neighborhood setting of the FLUS model based on a historical scenario: A case study of land use simulation of urban agglomeration of the Golden Triangle of Southern Fujian in 2030 [J]. Acta Ecologica Sinica, 2019,39(12):4284-4298.
ZhangYan, ShiXueyi, TangQian. Carbon storage assessment in the upper reaches of the Fenhe River under different land use scenarios [J]. Acta Ecologica Sinica, 2021,41(1):360-373.
YanYanghan, GuoZijian, WangWenyuan, et al. Research on landscape pattern changes and prediction in port city based on ANN-CA model: A case study of the west coast of Jiaozhou Bay [J]. Resources and Environment in the Yangtze Basin, 2020,29(7):1507-1514.
ZhangShunxin, WuZihao, YanQingwu, et al. Spatiotemporal changes in the ecosystem carbon storage on the northern slope of the Tianshan Mountains and simulations based on the PLUS-InVEST model [J]. Arid Zone Research, 2024,41(7):1228-1237.
WuXuan, ZhangTianyi, WangYugui. Research on multiple scenarios simulation of land cover in Leshan City based on Markov-PLUS model [J]. Journal of Hubei Minzu University (Natural Science Edition), 2024,42(2):293-300.
LiJinpu, XiaShaoxia, YuXiubo, et al. Evaluation of carbon storage on terrestrial ecosystem in Hebei Province based on InVEST model [J]. Journal of Ecology and Rural Environment, 2020,36(7):854-861.
XieGeng, WuLiping, ChenMin. Characterization of the evolution of spatial and temporal patterns of carbon storage in Chengdu based on land use change [J]. Environmental Impact Assessment, 2023,45(6):104-112.
WuDan, ZhuKangwen, ZhangSheng, et al. Evolution analysis of carbon stock in Chengdu-Chongqing economic zone based on PLUS model and InVEST model [J]. Ecology and Environmental Monitoring of Three Gorges, 2022,7(2):85-96.
[49]
GiardinaC P, RyanM G. Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature [J]. Nature, 2000,404(6780):858-861.
[50]
AlamS A, StarrM, ClarkB J F. Tree biomass and soil organic carbon densities across the Sudanese woodland savannah: A regional carbon sequestration study [J]. Journal of Arid Environments, 2013,89:67-76.
[51]
LiangXun, GuanQingfeng, ClarkeK C, et al. Understanding the drivers of sustainable land expansion using a patch-generating land use simulation (PLUS) model: A case study in Wuhan, China [J]. Computers, Environment and Urban Systems, 2021,85:101569.
WeiXile, LiQian, DengAiping, et al. Spatiotemporal evolution, forecast, and driving factor analysis of carbon storage in Sichuan Province based on land use change [J]. Research of Soil and Water Conservation, 2025,32(3):373-383.
ZhaoTong, MengJijun. Spatio-temporal evolution of land use and resulting change in carbon stock in Chengdu Plain economic zone (CPEZ), China [J]. Mountain Research, 2023,41(5):648-661.
WangFeicui, WangDongchuan, ZhangLihui, et al. Spatiotemporal analysis of the dynamic changes in land use ecological risks in the urban agglomeration of Beijing-Tianjin-Hebei region [J]. Acta Ecologica Sinica, 2018,38(12):4307-4316.