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中国西北干旱和半干旱地区的植被动态与恢复潜力

Vegetation Dynamics and Recovery Potential in Arid and Semi-Arid Northwest China.

作者信息

Sui Xiran, Xu Qiongling, Tao Hui, Zhu Bin, Li Guangshuai, Zhang Zengxin

机构信息

Joint Innovation Center for Modern Forestry Studies, College of Forestry and Grassland, College of Soil and Water Conservation, Nanjing Forestry University, Nanjing 210037, China.

Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China.

出版信息

Plants (Basel). 2024 Dec 5;13(23):3412. doi: 10.3390/plants13233412.

DOI:10.3390/plants13233412
PMID:39683205
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11644636/
Abstract

The arid and semi-arid regions of northwest China are characterized by sparse vegetation and fragile ecosystems, making them highly susceptible to the impacts of climate change and human activities. Based on observed meteorological data, the Normalized Difference Vegetation Index (NDVI), the Lund-Potsdam-Jena dynamic global vegetation model (LPJ), a vegetation recovery potential model, and the MK trend test method, this study investigated the spatiotemporal distribution of vegetation recovery potential in northwest China and its relationship with global warming and increasing precipitation. The results indicated that vegetation in northwest China significantly increased, with greening closely related to trends in warming and wetting during 1982-2019. However, the vegetation recovery potential declined due to climate change. Central and southern Xinjiang and central Qinghai exhibited higher grassland recovery potential, while the central Gobi Desert areas of northwest China had lower recovery potential. The eastern part of northwest China was highly sensitive to drought, with moderate vegetation growth and recovery potential. Remote sensing data indicated a 2.3% increase in vegetation coverage in the region, with an average vegetation recovery potential index (IVCP) of 0.31. According to the results of LPJ model, the average vegetation recovery potential index for northwest China was 0.14, indicating a 1.1% improvement potential in vegetation coverage. Overall, climate warming and wetting facilitated vegetation recovery in northwest China, particularly in mountainous areas. The findings provide valuable insights for ecological restoration efforts and offer practical guidance for combating desertification and enhancing sustainable development. Moreover, these results underline the importance of incorporating vegetation recovery potential into regional policy-making to improve environmental resilience in the face of ongoing climate change.

摘要

中国西北干旱和半干旱地区植被稀疏，生态系统脆弱，极易受到气候变化和人类活动的影响。基于观测到的气象数据、归一化植被指数（NDVI）、伦德 - 波茨坦 - 耶拿动态全球植被模型（LPJ）、植被恢复潜力模型以及MK趋势检验方法，本研究调查了中国西北植被恢复潜力的时空分布及其与全球变暖和降水增加的关系。结果表明，1982 - 2019年期间，中国西北植被显著增加，植被变绿与变暖和变湿趋势密切相关。然而，由于气候变化，植被恢复潜力有所下降。新疆中部和南部以及青海中部的草地恢复潜力较高，而中国西北中部戈壁沙漠地区的恢复潜力较低。中国西北东部对干旱高度敏感，植被生长和恢复潜力适中。遥感数据显示该地区植被覆盖度增加了2.3%，植被恢复潜力指数（IVCP）平均为0.31。根据LPJ模型结果，中国西北植被恢复潜力指数平均为0.14，表明植被覆盖度有1.1%的提升潜力。总体而言，气候变暖和变湿促进了中国西北的植被恢复，特别是在山区。这些发现为生态恢复工作提供了有价值的见解，并为防治荒漠化和促进可持续发展提供了实际指导。此外，这些结果强调了将植被恢复潜力纳入区域政策制定以提高面对持续气候变化时的环境适应能力的重要性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/1f482261933d/plants-13-03412-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/5765a6b4f637/plants-13-03412-g001a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/b147dfbb3828/plants-13-03412-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/8ae56018d849/plants-13-03412-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/bc0a5c3d4f23/plants-13-03412-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/2af8e218c188/plants-13-03412-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/a0fae1adb3bb/plants-13-03412-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/ea5bd813c901/plants-13-03412-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/596ce77497ed/plants-13-03412-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/a474c5312467/plants-13-03412-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/9e104c01e3f2/plants-13-03412-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/c069569cf44e/plants-13-03412-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/fc6078aac9fa/plants-13-03412-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/90a804042dd6/plants-13-03412-g013a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/1f482261933d/plants-13-03412-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/5765a6b4f637/plants-13-03412-g001a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/b147dfbb3828/plants-13-03412-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/8ae56018d849/plants-13-03412-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/bc0a5c3d4f23/plants-13-03412-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/2af8e218c188/plants-13-03412-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/a0fae1adb3bb/plants-13-03412-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/ea5bd813c901/plants-13-03412-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/596ce77497ed/plants-13-03412-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/a474c5312467/plants-13-03412-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/9e104c01e3f2/plants-13-03412-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/c069569cf44e/plants-13-03412-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/fc6078aac9fa/plants-13-03412-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/90a804042dd6/plants-13-03412-g013a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/734d/11644636/1f482261933d/plants-13-03412-g014.jpg

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Vegetation restoration enhancing soil carbon sequestration in karst rocky desertification ecosystems: A meta-analysis.植被恢复增强喀斯特石漠化生态系统土壤碳固存：一项荟萃分析。
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Precipitation and vegetation transpiration variations dominate the dynamics of agricultural drought characteristics in China.降水和植被蒸腾变化主导着中国农业干旱特征的动态变化。
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