Driving Climatic Factors at Critical Plant Developmental Stages for Qinghai-Tibet Plateau Alpine Grassland Productivity
文献类型：期刊论文
| 作者 | Zhai, Dechao2,3; Gao, Xizhang2,4; Li, Baolin2,3,4; Yuan, Yecheng2; Jiang, Yuhao1; Liu, Yan2,3; Li, Ying2,3; Li, Rui2,3; Liu, Wei2,3; Xu, Jie2,3 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 14期号:7页码:20 |
| 关键词 | driving climatic factors aboveground net primary productivity plant developmental stages partial least squares regression climatic legacy effects normalized difference vegetation index |
| DOI | 10.3390/rs14071564 |
| 通讯作者 | Li, Baolin(libl@lreis.ac.cn) |
| 英文摘要 | Determining the driving climatic factors at critical periods and potential legacy effects is crucial for grassland productivity predictions on the Qinghai-Tibet Plateau (QTP). However, studies with limited and ex situ ground samples from highly heterogeneous alpine meadows brought great uncertainties. This study determined the key climatic factors at critical plant developmental stages and the impact of previous plant growth status for interannual aboveground net primary productivity (ANPP) variations in different QTP grassland types. We hypothesize that the impact of climatic factors on grassland productivity varies in different periods and different vegetation types, while its legacy effects are not great. Pixel-based partial least squares regression was used to associate interannual ANPP with precipitation and air temperature at different developmental stages and prior-year ANPP from 2000 to 2019 using remote sensing techniques. Results indicated different findings from previous studies. Precipitation at the reproductive stage (July-August) was the most prominent controlling factor for ANPP which was also significantly affected by precipitation and temperature at the withering (September-October) and dormant stage (November-February), respectively. The influence of precipitation was more significant in alpine meadows than in alpine steppes, while the differentiated responses to climatic factors were attributed to differences in water consumption at different developmental stages induced by leaf area changes, bud sprouting, growth, and protection from frost damage. The prior-year ANPP showed a non-significant impact on ANPP of current year, except for alpine steppes, and this impact was much less than that of current-year climatic factors, which may be attributed to the reduced annual ANPP variations related to the inter-annual carbon circulation of alpine perennial herbaceous plants and diverse root/shoot ratios in different vegetation types. These findings can assist in improving the interannual ANPP predictions on the QTP under global climate change. |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; 3-RIVER SOURCE REGION ; GROUND BUD BANKS ; TUNDRA VEGETATION ; ANTHROPOGENIC ACTIVITIES ; ANNUAL PRECIPITATION ; THERMAL-ACCLIMATION ; ELECTRON-TRANSPORT ; SEMIARID GRASSLAND ; TEMPORAL VARIATION |
| 资助项目 | National Natural Science Foundation of China[U2243206] ; National Key Research and Development Plan of China[2016YFC0500205] ; Ministry of Science and Technology of China |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000782019700001 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Plan of China ; Ministry of Science and Technology of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/173911]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Baolin |
| 作者单位 | 1.Natl Forestry & Grassland Adm, Acad Forest Inventory & Planning, Beijing 100714, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhai, Dechao,Gao, Xizhang,Li, Baolin,et al. Driving Climatic Factors at Critical Plant Developmental Stages for Qinghai-Tibet Plateau Alpine Grassland Productivity[J]. REMOTE SENSING,2022,14(7):20. |
| APA | Zhai, Dechao.,Gao, Xizhang.,Li, Baolin.,Yuan, Yecheng.,Jiang, Yuhao.,...&Xu, Jie.(2022).Driving Climatic Factors at Critical Plant Developmental Stages for Qinghai-Tibet Plateau Alpine Grassland Productivity.REMOTE SENSING,14(7),20. |
| MLA | Zhai, Dechao,et al."Driving Climatic Factors at Critical Plant Developmental Stages for Qinghai-Tibet Plateau Alpine Grassland Productivity".REMOTE SENSING 14.7(2022):20. |
入库方式： OAI收割
来源：地理科学与资源研究所
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