NWIPB OpenIR
Precipitation consistently promotes, but temperature oppositely drives carbon fluxes in temperate and alpine grasslands in China
Liu, Zhaogang; Chen, Zhi; Yang, Meng; Hao, Tianxiang; Yu, Guirui; Zhu, Xianjin; Zhang, Weikang; Ma, Lexin; Dou, Xiaojun; Lin, Yong; Luo, Wenxing; Han, Lang; Sun, Mingyu; Chen, Shiping; Dong, Gang; Gao, Yanhong; Hao, Yanbin; Jiang, Shicheng; Li, Yingnian; Li, Yuzhe; Liu, Shaomin; Shi, Peili; Tan, Junlei; Tang, Yakun; Xin, Xiaoping; Zhang, Fawei; Zhang, Yangjian; Zhao, Liang; Zhou, Li; Zhu, Zhilin
2024
发表期刊AGRICULTURAL AND FOREST METEOROLOGY
卷号344
摘要Temperate grassland (TG) and alpine grassland (AG) are two distinct grassland types with different climatic backgrounds and adaptation patterns. Little is known about the universal and divergent responses of TGs and AGs to climate change, particularly with regard to the carbon (C) fluxes. The large-scale responses of the C fluxes in different grasslands to climate change remain unclear, with only a few comparative studies of distinct responses of the C fluxes in TGs and AGs to climate change hinders our understanding of this subject. In this study, we conducted a large-scale transect study across the Mongolian, Loess, and Tibetan Plateaus in China to reveal the similarities and differences in the responses of the C fluxes in TGs and AGs to climate change. We used C flux data measured by eddy covariance from ChinaFLUX and published literature, covering the period from 2003 to 2020. The results showed that TGs and AGs in China were weak C sinks. Net ecosystem productivity in TGs and AGs exhibited opposite trends with increasing latitude, longitude, and altitude. Elevated water (mean annual precipitation and soil water content) consistently increased the C fluxes. Conversely, increased temperature (mean annual temperature and mean annual soil temperature) reduced the C fluxes in TGs and increased the C fluxes in AGs. The water factors promoted the C fluxes in both TGs and AGs by improving the leaf area indices. Conversely, the temperature factors had a strong direct, negative effect on the C fluxes in TGs and a weak direct, positive effect on the C fluxes in AGs, emphasizing the divergent patterns of the C fluxes in TGs and AGs and their responses to climate change. Overall, this study enhances our knowledge on C sinks and various grassland hydrothermal sensitivities.
收录类别SCIE
文献类型期刊论文
条目标识符http://210.75.249.4/handle/363003/62152
专题中国科学院西北高原生物研究所
推荐引用方式
GB/T 7714
Liu, Zhaogang,Chen, Zhi,Yang, Meng,et al. Precipitation consistently promotes, but temperature oppositely drives carbon fluxes in temperate and alpine grasslands in China[J]. AGRICULTURAL AND FOREST METEOROLOGY,2024,344.
APA Liu, Zhaogang.,Chen, Zhi.,Yang, Meng.,Hao, Tianxiang.,Yu, Guirui.,...&Zhu, Zhilin.(2024).Precipitation consistently promotes, but temperature oppositely drives carbon fluxes in temperate and alpine grasslands in China.AGRICULTURAL AND FOREST METEOROLOGY,344.
MLA Liu, Zhaogang,et al."Precipitation consistently promotes, but temperature oppositely drives carbon fluxes in temperate and alpine grasslands in China".AGRICULTURAL AND FOREST METEOROLOGY 344(2024).
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