A shift in the dominant role of atmospheric vapor pressure deficit and soil moisture on vegetation greening in China
文献类型：期刊论文
| 作者 | Cheng, Yongming1,2; Liu, Liu1,2; Cheng, Lei4; Fa, Keyu1,2; Liu, Xingcai3; Huo, Zailing1,2; Huang, Guanhua1,2 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 615页码:15 |
| 关键词 | Vegetation Soil moisture Vapor pressure deficit Solar-induced chlorophyll fluorescence Decoupling China |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2022.128680 |
| 通讯作者 | Liu, Liu(liuliu@cau.edu.cn) |
| 英文摘要 | Although evidence of ecosystem productivity to vapor pressure deficit (VPD) and soil moisture (SM) is abundant, their respective effects remain unclear due to tightly land-atmosphere interactions. In China, the spatial het-erogeneity in eco-hydrosphere has further impeded our understanding of ecosystem productivity in response to climate change. This study aimed to assess ecosystem productivity in China during 2001 to 2016 using solar -induced chlorophyll fluorescence (SIF). SIF corresponded well with gross primary productivity (GPP) and was strongly related to VPD and SM. The land-atmosphere interaction mechanism was more notable near the agro-pastoral ecotone, which was reflected in the stronger SM-VPD coupling effect on vegetation and more significant effect of VPD suppressing SIF and SM promoting SIF. We decoupled SM and VPD by equal-width binning of percentiles at a monthly scale. SIF tended to increase and decrease with increasing VPD in SM bins, accounting for 47.59% and 52.41% of the total vegetated area, respectively, whereas photosynthesis tended to increase and decrease with increasing SM in VPD bins, accounting for 62.18% and 37.82% of the total vegetated area, respectively. During 2001 to 2016, VPD and SM had a dominant effect on SIF in 52.31% and 47.69% of China, respectively, which occurred along a latitudinal gradient. However, since 2007, which was identified as the point of accelerated vegetation greening in China, the dominant factor of vegetation productivity has shifted from VPD to SM in terms of respective contributions and dominated areas. Our results emphasize an increasingly important role of SM in China, though the additive effects of VPD cannot be negligible. We conclude that the clarification of the shifting roles of SM and VPD in terrestrial ecosystem allows for more accurate prediction of vegetation productivity at a regional scale and provides greater insights into interactions between vegetation and climate. |
| WOS关键词 | INDUCED CHLOROPHYLL FLUORESCENCE ; GROSS PRIMARY PRODUCTIVITY ; SOLAR-INDUCED FLUORESCENCE ; CARBON ; PRECIPITATION ; TEMPERATURE ; ECOSYSTEMS ; DROUGHTS ; EVENTS ; GROWTH |
| 资助项目 | National Natural Science Foundation of China[52079138] ; National Natural Science Foundation of China[51961145104] ; 2115 Talent Development Program of China Agricultural University[00109019] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000913192400003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; 2115 Talent Development Program of China Agricultural University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/189781]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Liu |
| 作者单位 | 1.China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China 2.China Agr Univ, Ctr Agr Water Res China, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn Sc, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Yongming,Liu, Liu,Cheng, Lei,et al. A shift in the dominant role of atmospheric vapor pressure deficit and soil moisture on vegetation greening in China[J]. JOURNAL OF HYDROLOGY,2022,615:15. |
| APA | Cheng, Yongming.,Liu, Liu.,Cheng, Lei.,Fa, Keyu.,Liu, Xingcai.,...&Huang, Guanhua.(2022).A shift in the dominant role of atmospheric vapor pressure deficit and soil moisture on vegetation greening in China.JOURNAL OF HYDROLOGY,615,15. |
| MLA | Cheng, Yongming,et al."A shift in the dominant role of atmospheric vapor pressure deficit and soil moisture on vegetation greening in China".JOURNAL OF HYDROLOGY 615(2022):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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