Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian Plateau
This study applied grassland related multi-index and assessed the effects of climate change by investigating grassland responses to drought. This process was performed to study grassland vegetation dynamic accurately and evaluate the effect of drought in the Mongolian Plateau (MP). The spatial–tempo...
| Main Authors: | , , , , , , |
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/11/3/310 |
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| author | Yanzhen Zhang Zhaoqi Wang Qian Wang Yue Yang Yaojun Bo Weizhou Xu Jianlong Li |
| author_facet | Yanzhen Zhang Zhaoqi Wang Qian Wang Yue Yang Yaojun Bo Weizhou Xu Jianlong Li |
| author_sort | Yanzhen Zhang |
| collection | DOAJ |
| description | This study applied grassland related multi-index and assessed the effects of climate change by investigating grassland responses to drought. This process was performed to study grassland vegetation dynamic accurately and evaluate the effect of drought in the Mongolian Plateau (MP). The spatial–temporal characteristics of grassland dynamic in terms of coverage (F<sub>v</sub>), surface bareness (F<sub>b</sub>), and net primary production (NPP) from 2000 to 2013 were explored. We implemented the maximum Pearson correlation to analyze the grassland vegetation in response to drought by using self-calibrating Palmer Drought Severity Index (scPDSI). Results show that F<sub>v</sub> and NPP present an increasing trend (0.18 vs. 0.43). F<sub>b</sub> showed a decreasing trend with a value of −0.16. The grassland F<sub>v</sub> and NPP positively correlated with scPDSI, with a value of 0.12 and 0.85, respectively, and F<sub>b</sub> was −0.08. The positive correlation between F<sub>v</sub> and NPP accounted for 84.08%, and the positive correlation between F<sub>v</sub> and scPDSI accounted for 93.88%. On the contrary, the area with a negative correlation between F<sub>b</sub> and scPDSI was 57.43%. The grassland in the MP showed a recovery tendency. The increase in grassland caused by positive reaction was mainly distributed in the middle of Mongolia (MG), whereas that caused by counter response was mainly distributed in the east and west MG and northeast Inner Mongolia autonomous region of China (IM). The relevant results may provide useful information for policymakers about mitigation strategies against the inverse effects of drought on grassland and help to ease the losses caused by drought. |
| first_indexed | 2024-03-09T23:19:45Z |
| format | Article |
| id | doaj.art-a72738827d7d483d88ef1d30374ac7bf |
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| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T23:19:45Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-a72738827d7d483d88ef1d30374ac7bf2023-11-23T17:29:50ZengMDPI AGPlants2223-77472022-01-0111331010.3390/plants11030310Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian PlateauYanzhen Zhang0Zhaoqi Wang1Qian Wang2Yue Yang3Yaojun Bo4Weizhou Xu5Jianlong Li6College of Life Sciences, Yulin University, Yulin 719000, ChinaState Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, ChinaSchool of Environment and Planning, Liaocheng University, Liaocheng 252059, ChinaNanjing Institutes of Environmental Sciences, Ministry of Environmental Protection of the People’s Republic of China, Nanjing 210042, ChinaCollege of Life Sciences, Yulin University, Yulin 719000, ChinaCollege of Life Sciences, Yulin University, Yulin 719000, ChinaDepartment of Ecology, School of Life Science, Nanjing University, Nanjing 210023, ChinaThis study applied grassland related multi-index and assessed the effects of climate change by investigating grassland responses to drought. This process was performed to study grassland vegetation dynamic accurately and evaluate the effect of drought in the Mongolian Plateau (MP). The spatial–temporal characteristics of grassland dynamic in terms of coverage (F<sub>v</sub>), surface bareness (F<sub>b</sub>), and net primary production (NPP) from 2000 to 2013 were explored. We implemented the maximum Pearson correlation to analyze the grassland vegetation in response to drought by using self-calibrating Palmer Drought Severity Index (scPDSI). Results show that F<sub>v</sub> and NPP present an increasing trend (0.18 vs. 0.43). F<sub>b</sub> showed a decreasing trend with a value of −0.16. The grassland F<sub>v</sub> and NPP positively correlated with scPDSI, with a value of 0.12 and 0.85, respectively, and F<sub>b</sub> was −0.08. The positive correlation between F<sub>v</sub> and NPP accounted for 84.08%, and the positive correlation between F<sub>v</sub> and scPDSI accounted for 93.88%. On the contrary, the area with a negative correlation between F<sub>b</sub> and scPDSI was 57.43%. The grassland in the MP showed a recovery tendency. The increase in grassland caused by positive reaction was mainly distributed in the middle of Mongolia (MG), whereas that caused by counter response was mainly distributed in the east and west MG and northeast Inner Mongolia autonomous region of China (IM). The relevant results may provide useful information for policymakers about mitigation strategies against the inverse effects of drought on grassland and help to ease the losses caused by drought.https://www.mdpi.com/2223-7747/11/3/310the Mongolia Plateaugrassland degradationvegetation coveragesurface bareness degreeself-calibrating Palmer Drought Severity Index (scPDSI) |
| spellingShingle | Yanzhen Zhang Zhaoqi Wang Qian Wang Yue Yang Yaojun Bo Weizhou Xu Jianlong Li Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian Plateau Plants the Mongolia Plateau grassland degradation vegetation coverage surface bareness degree self-calibrating Palmer Drought Severity Index (scPDSI) |
| title | Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian Plateau |
| title_full | Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian Plateau |
| title_fullStr | Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian Plateau |
| title_full_unstemmed | Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian Plateau |
| title_short | Comparative Assessment of Grassland Dynamic and Its Response to Drought Based on Multi-Index in the Mongolian Plateau |
| title_sort | comparative assessment of grassland dynamic and its response to drought based on multi index in the mongolian plateau |
| topic | the Mongolia Plateau grassland degradation vegetation coverage surface bareness degree self-calibrating Palmer Drought Severity Index (scPDSI) |
| url | https://www.mdpi.com/2223-7747/11/3/310 |
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