Diverse responses of surface biogeophysical parameters to accelerated development and senescence of vegetation on the Mongolian Plateau
文献类型：期刊论文
| 作者 | Bai, Yu1,3; Liu, Menghang3,6; Zhou, Junxiong5; Guo, Qun1,4; Wu, Genan2; Li, Shenggong1,4 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-09-15 |
| 卷号 | 943页码:173727 |
| 关键词 | Climate change Vegetation activity Biogeophysical parameters Carbon cycles Development and senescence |
| DOI | 10.1016/j.scitotenv.2024.173727 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Vegetation dynamics is essential for characterizing surface biogeophysical parameters. Speeds of vegetation development and senescence are well documented, however, the effects of vegetation growth rates on surface parameters during different growth stages remains unclear. By using such methods as trend analyses and correlation analyses, this study examines the variations and interactive relationships of leaf area index (LAI) and surface parameters including Albedo, evapotranspiration (ET), and land surface temperature (LST), derived from Moderate Resolution Imaging Spectroradiometer (MODIS), during the intra-growing season (April -October, GS) on the Mongolian Plateau (MP). Generally, LAI exhibited a significant upward trend across GS months. Significant changes in V LAI (the difference in LAI between 2 consecutive months) in April -May and September -October indicated that the vegetation change rates were accelerated in the early GS (April -June) and late GS (September -October). The effect of vegetation activity on surface parameters varies over time and space. The effects of V LAI on the speed of surface parameters were inconsistent during the intra-GS. As a result of the significant changes in LAI, V ET (the difference in ET between 2 consecutive months) displayed a significant upward trend during the early GS but a significant downward trend during the late GS. With acceleration of vegetation activity, the effects of V ET and V Albedo (the difference in Albedo between 2 consecutive months) on LST could offset each other at different stages of the GS. In addition, the effect of V LAI on the speed of surface parameters varied significantly by vegetation types. Our findings imply that clarifying the impact of vegetation activity on surface parameters at different growth stages can advance our understanding of vegetation responses and feedbacks to climate change. |
| WOS关键词 | CLIMATE-CHANGE ; FEEDBACKS ; FORESTS ; DEFORESTATION ; VARIABILITY ; IMPACT |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001254389700001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206113]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Li, Shenggong |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.China Acad Space Technol, Inst Spacecraft Applicat Syst Engn, Beijing 100094, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 5.Univ Minnesota Twin Cities, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA 6.Chinese Acad Sci, Key Lab Reg Sustainable Dev Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Yu,Liu, Menghang,Zhou, Junxiong,et al. Diverse responses of surface biogeophysical parameters to accelerated development and senescence of vegetation on the Mongolian Plateau[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,943:173727. |
| APA | Bai, Yu,Liu, Menghang,Zhou, Junxiong,Guo, Qun,Wu, Genan,&Li, Shenggong.(2024).Diverse responses of surface biogeophysical parameters to accelerated development and senescence of vegetation on the Mongolian Plateau.SCIENCE OF THE TOTAL ENVIRONMENT,943,173727. |
| MLA | Bai, Yu,et al."Diverse responses of surface biogeophysical parameters to accelerated development and senescence of vegetation on the Mongolian Plateau".SCIENCE OF THE TOTAL ENVIRONMENT 943(2024):173727. |
入库方式： OAI收割
来源：地理科学与资源研究所
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