Spatiotemporal Evolution of Vegetation Patterns and Their Relationship with Climatic Factors in the Yin Mountain Region of Inner Mongolia

doi:10.11733/j.issn.1007-0435.2026.06.024

Acta Agrestia Sinica ›› 2026, Vol. 34 ›› Issue (6): 2217-2228.DOI: 10.11733/j.issn.1007-0435.2026.06.024

Spatiotemporal Evolution of Vegetation Patterns and Their Relationship with Climatic Factors in the Yin Mountain Region of Inner Mongolia

HU Jing-yao^1,2, WU You-fu³, WANG Zong-sen², LIU Bao-long⁴, ZHANG Ge-yu², WEN Zhong-ming², LIU Yang-yang^1,2, HU Er-cha^1,5, ZHAO Ying-han², LIU Chen-ming⁵

1. Inner Mongolia Daqingshan Forest Ecosystem National Observation and Research Station, Inner Mongolia Academy of Forestry Sciences, Hohhot, Inner Mongolia 010010, China;
2. College of Grassland Agriculture, Northwest A& F University, Yangling, Shaanxi Province 712100, China;
3. Geothermal and Geological Party, Tibet Bureau of Geology and Mineral Exploration and Development, Lhasa, Xizang 850000, China;
4. Changqing Oilfield Branch First Oil Production Plant, Yan'an, Shaanxi Province 716009, China;
5. Inner Mongolia Academy of Forestry Sciences, Hohhot, Inner Mongolia 010010, China

Received:2025-06-19 Revised:2025-08-29 Published:2026-06-02

内蒙古阴山地区植被格局时空演变及其与气候因子的关系

胡静瑶^1,2, 吴友福³, 王宗森², 刘宝龙⁴, 张格语², 温仲明², 刘洋洋^1,2, 胡尔查^1,5, 赵英涵², 刘辰明⁵

1. 内蒙古大青山森林生态系统定位观测研究站, 内蒙古呼和浩特 010010;
2. 西北农林科技大学草业与草原学院, 陕西杨凌 712100;
3. 西藏自治区地质矿产勘查开发局地热地质大队, 西藏拉萨 850000;
4. 长庆油田分公司第一采油厂, 陕西延安 716009;
5. 内蒙古自治区林业科学研究院, 内蒙古呼和浩特 010010

通讯作者: 刘洋洋,E-mail:hnlylcbtks@163.com;胡尔查,E-mail:371338101@qq.com
作者简介:胡静瑶(2002-),女,汉族,浙江温州人,本科生,主要从事草地动态遥感监测及其驱动机制研究,E-mail:1614184590@qq.com
基金资助:
内蒙古自治区林业科学研究院开放课题（KF2024MS04）；内蒙古自治区林业科学研究院科研能力提升“揭榜挂帅”项目（2024NLTS01）；陕西省林业科技创新重点专项（SXLK2023-02-14）资助

Abstract

Abstract: The Enhanced Vegetation Index （EVI） is a key indicator for characterizing vegetation activity and understanding the processes of the terrestrial ecosystem carbon cycle. Investigating its response to climate change helps deepen the understanding of vegetation-climate interaction mechanisms. This study focused on the Yin Mountain region of Inner Mongolia. Utilizing MODIS EVI datasets and meteorological data from 2001 to 2021， and employing methods such as trend analysis， partial correlation analysis， multiple linear regression， and partial least squares structural equation modeling （PLS-SEM）， we analyzed the spatiotemporal patterns of vegetation EVI and climatic factors in the region， and revealed the influence mechanisms of wind speed， precipitation， temperature， and solar radiation on EVI changes. The results indicated that from 2001 onwards， the annual mean EVI in the study area showed a fluctuating yet significantly increasing trend， with a slope of 0.002 74 per year （P<0.01）. The EVI increased from 0.172 in 2001 to 0.256 in 2021， representing a growth rate of 48.8%. Spatially， EVI increased gradually from northwest to southeast， with most areas showing a significant increasing trend， and the highest slope （>0.012） was observed in the south. Regarding the influencing mechanisms， EVI in the western and southern parts was primarily driven by wind speed and in the east by radiation， while in the north， it was jointly influenced by precipitation， radiation， and temperature. This research provides valuable insights for formulating regional ecological restoration policies.

Key words: EVI, Climatic factors, Yin Mountain region, Spatiotemporal variation

摘要： 增强型植被指数（Enhanced vegetation index，EVI）是表征植被活动、理解陆地生态系统碳循环过程的关键指标。探究其对气候变化的响应有助于加深对植被-气候互作机制的理解。本研究以内蒙古阴山地区为研究区，基于2001-2021年中等分辨率成像光谱仪增强型植被指数（Moderate-resolution imaging spectroradiometer enhanced vegetation index，MODIS EVI）数据集和气象数据，综合运用趋势分析、偏相关分析、多元线性回归以及偏最小二乘结构方程模型（Partial least squares structural equation modeling，PLS-SEM）等方法，分析了该地区植被EVI与气候因子的时空变化规律，并揭示了风速、降水量、温度、太阳辐射对EVI变化的影响机制。结果表明：2001年以来，研究区植被年均EVI总体呈显著波动上升趋势，增长斜率为0.002 74·a^-1（P<0.01）。EVI从2001年的0.172上升至2021年的0.256，增长率达48.8%。空间上，EVI自西北向东南逐渐增大，大部分区域呈显著增长趋势，南部增长斜率最高（>0.012）。在影响机制上，西部和南部EVI的主导因子为风速，东部为辐射，北部则受降水、辐射和温度共同影响。本研究对区域生态恢复政策的制定具有重要参考价值。

关键词: EVI, 气候因子, 阴山地区, 时空变化

CLC Number:

S812

HU Jing-yao, WU You-fu, WANG Zong-sen, LIU Bao-long, ZHANG Ge-yu, WEN Zhong-ming, LIU Yang-yang, HU Er-cha, ZHAO Ying-han, LIU Chen-ming. Spatiotemporal Evolution of Vegetation Patterns and Their Relationship with Climatic Factors in the Yin Mountain Region of Inner Mongolia[J]. Acta Agrestia Sinica, 2026, 34(6): 2217-2228.

胡静瑶, 吴友福, 王宗森, 刘宝龙, 张格语, 温仲明, 刘洋洋, 胡尔查, 赵英涵, 刘辰明. 内蒙古阴山地区植被格局时空演变及其与气候因子的关系[J]. 草地学报, 2026, 34(6): 2217-2228.

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Spatiotemporal Evolution of Vegetation Patterns and Their Relationship with Climatic Factors in the Yin Mountain Region of Inner Mongolia

内蒙古阴山地区植被格局时空演变及其与气候因子的关系

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