The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau
The Qinghai-Tibetan Plateau (QTP) is a global center of cold and dry, where the most extensive fragile alpine vegetation exists. Quantitative analysis of drought event characteristics and vegetation response to drought on the QTP is indispensable for understanding the increasing drought events in a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/15/4/902 |
| _version_ | 1827755685650104320 |
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| author | Yuying Zhu Huamin Zhang Mingjun Ding Lanhui Li Yili Zhang |
| author_facet | Yuying Zhu Huamin Zhang Mingjun Ding Lanhui Li Yili Zhang |
| author_sort | Yuying Zhu |
| collection | DOAJ |
| description | The Qinghai-Tibetan Plateau (QTP) is a global center of cold and dry, where the most extensive fragile alpine vegetation exists. Quantitative analysis of drought event characteristics and vegetation response to drought on the QTP is indispensable for understanding the increasing drought events in a warming climate which exacerbate adverse influence on extremely alpine ecosystems. Here, using the standardized precipitation evapotranspiration index (SPEI) and the normalized difference vegetation index (NDVI) from 2000 to 2018, this study analyzed the characteristics of drought events, their temporal impacts, and the stability of vegetation response to drought on the QTP. Results showed that: the characteristics of drought events on the QTP have clear spatial heterogeneity. When compared to the east monsoon region, most of the western regions have higher frequency and lower intensity of drought events. Drought has significant temporal effects on vegetation in grassland areas of the QTP during the growing season, which reach their peak in July and August. The 0–1-month and 3-month time scales were the optimal lagged and accumulated time during the growing season, respectively. The stability of vegetation response to drought showed significant spatial heterogeneity and varied with eco-geographical regions and vegetation types. Generally, forest areas showed high resistance (74.09) and resilience (2.26), followed by crop and grassland areas. |
| first_indexed | 2024-03-11T08:12:30Z |
| format | Article |
| id | doaj.art-14e082e137f44919a84c1622a1c26fde |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T08:12:30Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-14e082e137f44919a84c1622a1c26fde2023-11-16T23:01:03ZengMDPI AGRemote Sensing2072-42922023-02-0115490210.3390/rs15040902The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan PlateauYuying Zhu0Huamin Zhang1Mingjun Ding2Lanhui Li3Yili Zhang4School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, ChinaCenter for Natural Resources Policy Survey and Evaluation of Jiangxi Province, Nanchang 330025, ChinaSchool of Geography and Environment, Jiangxi Normal University, Nanchang 330022, ChinaSchool of Computer and Information Engineering, Xiamen University of Technology, Xiamen 361024, ChinaState Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, ChinaThe Qinghai-Tibetan Plateau (QTP) is a global center of cold and dry, where the most extensive fragile alpine vegetation exists. Quantitative analysis of drought event characteristics and vegetation response to drought on the QTP is indispensable for understanding the increasing drought events in a warming climate which exacerbate adverse influence on extremely alpine ecosystems. Here, using the standardized precipitation evapotranspiration index (SPEI) and the normalized difference vegetation index (NDVI) from 2000 to 2018, this study analyzed the characteristics of drought events, their temporal impacts, and the stability of vegetation response to drought on the QTP. Results showed that: the characteristics of drought events on the QTP have clear spatial heterogeneity. When compared to the east monsoon region, most of the western regions have higher frequency and lower intensity of drought events. Drought has significant temporal effects on vegetation in grassland areas of the QTP during the growing season, which reach their peak in July and August. The 0–1-month and 3-month time scales were the optimal lagged and accumulated time during the growing season, respectively. The stability of vegetation response to drought showed significant spatial heterogeneity and varied with eco-geographical regions and vegetation types. Generally, forest areas showed high resistance (74.09) and resilience (2.26), followed by crop and grassland areas.https://www.mdpi.com/2072-4292/15/4/902droughtresponseresistance and resiliencevegetationQinghai-Tibetan Plateau |
| spellingShingle | Yuying Zhu Huamin Zhang Mingjun Ding Lanhui Li Yili Zhang The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau Remote Sensing drought response resistance and resilience vegetation Qinghai-Tibetan Plateau |
| title | The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau |
| title_full | The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau |
| title_fullStr | The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau |
| title_full_unstemmed | The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau |
| title_short | The Multiple Perspective Response of Vegetation to Drought on the Qinghai-Tibetan Plateau |
| title_sort | multiple perspective response of vegetation to drought on the qinghai tibetan plateau |
| topic | drought response resistance and resilience vegetation Qinghai-Tibetan Plateau |
| url | https://www.mdpi.com/2072-4292/15/4/902 |
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