Objective This study aims to quantitatively evaluate the spatial patterns of vegetation carbon sequestration enhancement potential in Yunnan Province and to reveal its relationship with the national key ecological function zones. Methods Net primary productivity (NPP) was used as the core indicator. The climate model, spatiotemporal substitution model, and remote sensing-based maximum observation model were comprehensively applied. Through a multi-model comparison analysis, the distribution characteristics of vegetation carbon sequestration enhancement potential were evaluated. Results 1) The vegetation carbon sequestration enhancement potential in Yunnan Province ranged from 68.25 to 277.44 Mt (C). The evaluation results of the three models showed certain differences in magnitude, with the spatiotemporal substitution model being the most optimistic and the remote sensing-based maximum observation model being the most conservative. 2) The vegetation carbon sequestration enhancement potential was closely associated with vegetation type and elevation gradient. The core hotspot areas were concentrated in the central-southern region centered on Pu'er City, while coldspot areas were primarily located in the high-altitude mountainous areas of cold-temperate coniferous forests in northwestern Yunnan. 3) The core hotspot areas of vegetation carbon sequestration enhancement potential highly overlapped with national nature reserves such as Ailao Mountain and Nangun River, while reserves in northwestern Yunnan, such as Gaoligong Mountain and Baima Snow Mountain, overlapped with the core coldspot areas. Conclusion Driven by hydrothermal conditions, the core hotspot areas of vegetation carbon sequestration enhancement potential in Yunnan Province are highly concentrated in the low-elevation broad-leaved forest areas of the central-southern region. The spatial relationship between this pattern and the national key ecological function zones further identifies synergistic enhancement zones represented by Ailao Mountain, conservation trade-off zones represented by Baima Snow Mountain, and new potential zones represented by Lincang.
Intergovernmental Panel on Climate Change, EdenhoferO. Climate change 2014: Mitigation of climate change: working group Ⅲ contribution to the fifth assessment report of the intergovernmental panel on climate change[M].New York: Cambridge University Press,2014.
[2]
GLEICKP H, ADAMSR M, AMASINOR M, et al. Climate change and the integrity of science[J].Science,2010,328(5979):689-690.
[3]
EDENHOFERO, PICHS-MADRUGAR, SOKONAY, et al. Climate change 2014: Mitigation of climate change. Contribution of working Group Ⅲ to the fifth assessment report of the intergovernmental panel on climate change[M].Cambridge: Cambridge University Press,2014:1-30.
[4]
KEENANT F, WILLIAMSC A. The terrestrial carbon sink[J].Annual Review of Environment and Resources,2018,43:219-243.
[5]
WANGY H, SONGC Q, GAOY F, et al. Integrating national integrated assessment model and land-use intensity for estimating China's terrestrial ecosystem carbon storage[J].Applied Geography,2024,162:e103173.
[6]
JIANGY C, OUYANGB, YANZ G. The response of carbon storage to multi-objective land use/cover spatial optimization and vulnerability assessment[J].Sustainability,2024,16(6):e2235.
FENGY, YUEY J, ZHAOP W. Research progress in accounting for forest carbon storage and evaluating carbon Se-questration potential evaluation under the vision of carbon neutrality[J].Journal of Inner Mongolia Agricultural University (Natural Science Edition),2024,45(2):93-100.
[9]
廉杰.江西省陆地植被碳汇驱动因素及时空异质性研究[D].南昌:江西财经大学,2025.
[10]
LIANJ. Study on driving factors and spatio-temporal heterogeneity of terrestrial vegetation carbon sink in Jiangxi Province[D].Nanchang:Jiangxi University of Finance and Economics,2025.
SUNS L, ZHOUS Q, SHIJ H, et al. Calculation and comparison of vegetation net primary productivity(NPP) in Zhejiang Province with three models[J].Chinese Journal of Agrometeorology,2010,31(2):271-276,309.
[13]
SEINOH, UCHIJIMAZ. Global distribution of net primary productivity of terrestrial vegetation[J].Journal of Agricultural Meteorology,1992,48(1):39-48.
WANGX Y, LIY Q, LIANJ, et al. Progress in application of the CENTURY model for prediction of soil carbon levels in different ecosystems[J].Acta Prataculturae Sinica,2019,28(2):179-189.
[18]
LIUX W, ZHANGR P, GUOJ, et al. Analysis of the spatiotemporal dynamics of grassland carbon sinks in Xinjiang via the improved CASA model[J].Ecological Indicators,2025,170:e113062.
XUJ Y. Estimation of the spatial distribution of potential forestation land and its climatic potential productivity in China[J].Acta Geographica Sinica,2023,78(3):677-693.
YUANY Q, XUEL M, LIX Z. Net primary productivity and carbon sequestration potential of salt marsh vegetation in Chongming Dongtan of the Yangtze estuary based on CASA model[J].Chinese Journal of Ecology,2022,41(2):334-342.
WANH W, LIH X, GAOJ X, et al. Spatial pattern analysis of carbon sequestration potential of vegetation ecosystem in China[J].Acta Ecologica Sinica,2022,42(21):8568-8580.
[25]
WANGZ S, LIR, GUOQ C, et al. Learning ensembles of process-based models for high accurately evaluating the one-hundred-year carbon sink potential of China′s forest ecosystem[J].Heliyon,2023,9(6):e17243.
LIUK, ZHANGH, KONGL H, et al. An overview of terrestrial ecosystem carbon sink assessment methods towards achieving carbon neutrality in China[J].Acta Ecologica Sinica,2023,43(10):4294-4307.
WANGK, PIAOS, HEY, et al. Spatial variations and mechanisms for the stability of terrestrial carbon sink in China[J].Scientia Sinica (Terrae),2023,53(2):216-226.
HOUP, ZHAIJ, CAOW, et al. Evaluation on ecosystem changes and protection of the national key ecological function zones in mountainous areas of central Hainan Island[J].Acta Geographica Sinica,2018,73(3):429-441.
BAIY, LIH, WANGX Y, et al. Evaluating natural resource assets and gross ecosystem products using ecological accounting system: A case study in Yunnan Province[J].Journal of Natural Resources,2017,32(7):1100-1112.
ZOUY Z, ZOUZ J. Research on the ecological compensation mechanism for the development of forest health and wellness industry from the perspective of carbon sink:Empirical evidence from Yunnan Province[J].Forest Investigation Design,2025,54(1):66-71.
[36]
陶明扬,刘春学.云南省水域湿地生态服务价值评估[J].国有资产管理,2025(5):60-74.
[37]
TAOM Y, LIUC X. Evaluation of ecological service value of water wetland in Yunnan Province[J].State Assets Management,2025(5):60-74.
XIEZ Q, HUANGY Z. Ecological risk assessment of Yunnan Province by coupling land use change and ecosystem services[J].Journal of Soil and Water Conservation,2025,39(3):224-234.
[40]
LÜF C, SONGY K, YANX D. Evaluating carbon sink potential of forest ecosystems under different climate change scenarios in Yunnan,southwest China[J].Remote Sensing,2023,15(5):e1442.
[41]
DELUCIAE H, GOMEZ-CASANOVASN, GREENBERGJ A, et al. The theoretical limit to plant productivity[J].Environmental Science and Technology,2014,48(16):9471-9477.
ZHOUP, WUW, WANGR, et al. Analysis of grassland simulation using different estimation models of grassland net primary productivity in China[J].Pratacultural Science,2018,35(10):2381-2388.
WANGX Z, HUH T, WUJ Z, et al. Spatial and temporal variation and potential of NPP in terrestrial ecosystems in Shaanxi Province from 2000 to 2020[J].Journal of Soil and Water Conservation,2024,38(3):325-334.
LIM Y, SHANGGUANZ P, DENGL. Spatial distribution of carbon storages in the terrestrial ecosystems and its influencing factors on the Loess Plateau[J].Acta Ecologica Sinica,2021,41(17):6786-6799.
WANGB Y, CENY J, XIAOG X, et al. Spatial analysis of food safety of grains and their products in Zhongshan City based on Getis-Ord Gi* method[J].Journal of Food Safety and Quality,2019,10(8):2425-2428.
DUS X, LIUH J, ZHANGM Y, et al. Assessment of ecosystem services in the national key ecological function areas for water conservation[J].Acta Ecologica Sinica,2022,42(11):4349-4361.
[52]
LIX, NINGZ, YANGH Q. A review of the relationship between China′s key forestry ecology projects and carbon market under carbon neutrality[J].Trees,Forests and People,2022,9:e100311.
[53]
ZHANGD N, ZHAOY H, WUJ S. Assessment of carbon balance attribution and carbon storage potential in China′s terrestrial ecosystem[J].Resources,Conservation and Recycling,2023,189:e106748.
[54]
KONDOHA, TATEISHIR, RUNTUNUWUE, et al. Relating vegetation activity to climatic variation and atmospheric CO2 content[J].Journal of Japan Society of Hydrology and Water Resources,2002,15(2):128-138.
[55]
上接第166页
[56]
PULIDO MONCADAM, GABRIELSD, CORNELISW, et al. Comparing aggregate stability tests for soil physical quality indicators[J].Land Degradation and Development,2015,26(8):843-852.
YANF L, SHIZ H, CAIC F, et al. Effects of topsoil aggregate stability on soil erosion at hillslope on ultisoils[J].Acta Pedologica Sinica,2007,44(4):577-583.
[59]
吴新亮.几种典型地带性土壤团聚体稳定机制及坡面侵蚀响应[D].武汉:华中农业大学,2018.
[60]
WUX L. Aggregate stabilization mechanism and slope erosion characteristics of several typical zonal soils[D].Wuhan: Huazhong Agricultural University,2018.
SHENX T, TUB H, LIUC Y, et al. Mechanisms of rhizosphere microorganisms in regulating plant root system architecture in acidic soils[J].Environmental Science,2025,46(1):570-578.
HUL, DUW, CHANGB K, et al. The surface properties of Lou soil with different phosphorus levels and their effects on the loss of phosphorus[J].Acta Pedologica Sinica,2023,60(2):424-434.
WANGY H, CHENZ, ZHOUJ G, et al. Effects of transformation of Masson pine forest on characteristics of soil acidification and aggregate stability within polluted areas of Chongqing[J].Acta Ecologica Sinica,2021,41(13):5184-5194.
LIJ W, LIUK L, YUX C, et al. Regulation of carbon and potassium distribution in soil aggregates of red soil slope farmland by rice straw mulching and vetiver hedgerow[J].Soils,2022,54(4):787-792.
[69]
ZHUX C, GAOL, WEIX R, et al. Progress and prospect of studies of Benggang erosion in southern China[J].Geoderma,2023,438:e116656.