Grassland changes and the role of elevation: A global perspective
Grasslands cover approximately 40 % of the Earth's land area and provide essential ecosystem services, such as carbon sequestration and biodiversity support. However, global climate change and human activities have significantly altered grassland dynamics, manifesting as ''greening�...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Global Ecology and Conservation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S235198942400595X |
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| author | Yuxin Zhang Juying Sun Yafeng Lu Zhou Shu |
| author_facet | Yuxin Zhang Juying Sun Yafeng Lu Zhou Shu |
| author_sort | Yuxin Zhang |
| collection | DOAJ |
| description | Grasslands cover approximately 40 % of the Earth's land area and provide essential ecosystem services, such as carbon sequestration and biodiversity support. However, global climate change and human activities have significantly altered grassland dynamics, manifesting as ''greening'' and ''browning'' trends in different regions. This study utilized NDVI data, climate data, digital elevation models (DEM), and land-use data from 1981 to 2015, combined with Ordinary Least Squares (OLS) regression, the Mann-Kendall test, residual analysis, and partial correlation analysis, to systematically explore the spatial distribution and driving mechanisms of grassland changes across the 0–5800 m elevation range. Results indicate that the impact of human activities leading to significant grassland greening is primarily concentrated within the 0–1200 m elevation range, while significant browning is predominantly observed at elevations between 0–600 m. The influence of climate change on grassland dynamics spans the entire 0–5800 m elevation range, with particularly pronounced effects between 0–600 m and 1000–1200 m. Temperature was identified as the key climatic factor driving both significant greening and browning of grasslands globally. |
| format | Article |
| id | doaj-art-df1381c5443849599d2334afbf32c9e4 |
| institution | Kabale University |
| issn | 2351-9894 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Global Ecology and Conservation |
| spelling | doaj-art-df1381c5443849599d2334afbf32c9e42025-01-23T05:27:00ZengElsevierGlobal Ecology and Conservation2351-98942025-01-0157e03391Grassland changes and the role of elevation: A global perspectiveYuxin Zhang0Juying Sun1Yafeng Lu2Zhou Shu3School of Management, Chengdu University of Information Technology, Chengdu 610225, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China; Corresponding author.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, ChinaGuang'an Ecological Environment Monitoring Center Station, Guang'an 638500, ChinaGrasslands cover approximately 40 % of the Earth's land area and provide essential ecosystem services, such as carbon sequestration and biodiversity support. However, global climate change and human activities have significantly altered grassland dynamics, manifesting as ''greening'' and ''browning'' trends in different regions. This study utilized NDVI data, climate data, digital elevation models (DEM), and land-use data from 1981 to 2015, combined with Ordinary Least Squares (OLS) regression, the Mann-Kendall test, residual analysis, and partial correlation analysis, to systematically explore the spatial distribution and driving mechanisms of grassland changes across the 0–5800 m elevation range. Results indicate that the impact of human activities leading to significant grassland greening is primarily concentrated within the 0–1200 m elevation range, while significant browning is predominantly observed at elevations between 0–600 m. The influence of climate change on grassland dynamics spans the entire 0–5800 m elevation range, with particularly pronounced effects between 0–600 m and 1000–1200 m. Temperature was identified as the key climatic factor driving both significant greening and browning of grasslands globally.http://www.sciencedirect.com/science/article/pii/S235198942400595XGlobal ChangeAltitudeGrasslandAnthropogenic ActivitiesClimate Change |
| spellingShingle | Yuxin Zhang Juying Sun Yafeng Lu Zhou Shu Grassland changes and the role of elevation: A global perspective Global Ecology and Conservation Global Change Altitude Grassland Anthropogenic Activities Climate Change |
| title | Grassland changes and the role of elevation: A global perspective |
| title_full | Grassland changes and the role of elevation: A global perspective |
| title_fullStr | Grassland changes and the role of elevation: A global perspective |
| title_full_unstemmed | Grassland changes and the role of elevation: A global perspective |
| title_short | Grassland changes and the role of elevation: A global perspective |
| title_sort | grassland changes and the role of elevation a global perspective |
| topic | Global Change Altitude Grassland Anthropogenic Activities Climate Change |
| url | http://www.sciencedirect.com/science/article/pii/S235198942400595X |
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