Influence of Early-Season Drought on the Peak of Growing Season in China Varies by Drought Timing and Biomes
文献类型：期刊论文
| 作者 | Tao, Zexing; Dai, Junhu; Wang, Xiaoyue; Wang, Yuan |
| 刊名 | FORESTS
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 15期号:6页码:1027 |
| 关键词 | drought index standardized precipitation-evapotranspiration index peak of growing season correlation analysis China |
| DOI | 10.3390/f15061027 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | The peak of growing season (POG) represents the timing of the maximum capacity of vegetation photosynthesis and acts as a crucial phenological indicator for the carbon cycle in terrestrial ecosystems. However, little is known about how POG responds to extreme climate events such as drought across different biomes. Based on two drought indices, we analyzed the temporal-spatial pattern of drought and POG in China and then investigated how drought influenced the POG in different periods of the early season through correlation analysis. In general, a trend towards increased aridity and earlier POG was found in most areas. The impact of drought on POG differed among periods. On the one hand, an earlier POG enabled plants to reduce evapotranspiration and mitigate the risk of severe summer drought. On the other hand, the drought that occurred in spring impeded plant growth and caused a delay in spring phenology, thereby postponing POG. Summer drought led to an earlier POG in relatively dry biomes but inversely led to a later peak in photosynthetic activity in wetter biomes. We also observed a 1-month/2-month lagged effect of drought on POG in almost half of the areas and a 2-month/ 3-month cumulative effect of drought in the north of 50 degrees N. These findings enhance our understanding of carbon uptake in terrestrial ecosystems by clarifying the mechanisms by which climate change impacts vegetation growth and photosynthetic activity. |
| WOS关键词 | CLIMATE-CHANGE ; TIBETAN PLATEAU ; PHENOLOGY ; CARBON ; PRECIPITATION ; FEEDBACKS ; RESPONSES ; PATTERNS ; TRENDS |
| WOS研究方向 | Forestry |
| WOS记录号 | WOS:001255917600001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/206127]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 通讯作者 | Wang, Yuan |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao, Zexing,Dai, Junhu,Wang, Xiaoyue,et al. Influence of Early-Season Drought on the Peak of Growing Season in China Varies by Drought Timing and Biomes[J]. FORESTS,2024,15(6):1027. |
| APA | Tao, Zexing,Dai, Junhu,Wang, Xiaoyue,&Wang, Yuan.(2024).Influence of Early-Season Drought on the Peak of Growing Season in China Varies by Drought Timing and Biomes.FORESTS,15(6),1027. |
| MLA | Tao, Zexing,et al."Influence of Early-Season Drought on the Peak of Growing Season in China Varies by Drought Timing and Biomes".FORESTS 15.6(2024):1027. |
入库方式： OAI收割
来源：地理科学与资源研究所
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