Precipitation Gradient Drives Divergent Relationship between Non-Structural Carbohydrates and Water Availability in Pinus tabulaeformis of Northern China
文献类型：期刊论文
| 作者 | Hao, Bingyan; Hartmann, Henrik; Li, Yuanqiao; Liu, Hongyan; Shi, Fangzhong; Yu, Kailiang; Li, Xiaoyan; Li, Zongshan; Wang, Pei; Allen, Craig D. |
| 刊名 | FORESTS
 |
| 出版日期 | 2021-02 |
| 卷号 | 12期号:2页码:- |
| 关键词 | non-structural carbohydrates (NSCs) precipitation gradient water availability stem growth forest |
| 英文摘要 | Seasonal non-structural carbohydrate (NSC) dynamics in different organs can indicate the strategies trees use to cope with water stress; however, these dynamics remain poorly understood along a large precipitation gradient. In this study, we hypothesized that the correlation between water availability and NSC concentrations in different organs might be strengthened by decreasing precipitation in Pinus tabulaeformis Carr. forests in temperate China. Our results show that the concentrations of soluble sugars were lower in stems and coarse roots, and starch was higher in branches in the early growing season at drier sites. Throughout the growing season, the concentrations of soluble sugars increased in drier sites, especially for leaves, and remained stable in wetter sites, while starch concentrations were relatively stable in branches and stems at all sites. The NSC concentrations, mainly starch, decreased in coarse roots along the growing season at drier sites. Trees have a faster growth rate with an earlier cessation in active stem growth at drier sites. Interestingly, we also found a divergent relationship between NSCs in different organs and mean growing season water availability, and a stronger correlation was observed in drier sites. These results show that pine forests in arid and semi-arid regions of northern China exhibit different physiological responses to water availability, improving our understanding of the adaptive mechanisms of trees to water limitations in a warmer and drier climate. |
| WOS研究方向 | Forestry |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45537]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 2.Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing 100875, Peoples R China 3.Max Planck Inst Biogeochem, Dept Biogeochem Proc, D-07745 Jena, Germany 4.Peking Univ, Coll Urban & Environm Sci, Beijing 100871, Peoples R China 5.Peking Univ, MOE Lab Earth Surface Proc, Beijing 100871, Peoples R China 6.Univ Virginia, Dept Environm Sci, Charlottesville, VA 22904 USA |
| 推荐引用方式 GB/T 7714 | Hao, Bingyan,Hartmann, Henrik,Li, Yuanqiao,et al. Precipitation Gradient Drives Divergent Relationship between Non-Structural Carbohydrates and Water Availability in Pinus tabulaeformis of Northern China[J]. FORESTS,2021,12(2):-. |
| APA | Hao, Bingyan.,Hartmann, Henrik.,Li, Yuanqiao.,Liu, Hongyan.,Shi, Fangzhong.,...&Wu, Xiuchen.(2021).Precipitation Gradient Drives Divergent Relationship between Non-Structural Carbohydrates and Water Availability in Pinus tabulaeformis of Northern China.FORESTS,12(2),-. |
| MLA | Hao, Bingyan,et al."Precipitation Gradient Drives Divergent Relationship between Non-Structural Carbohydrates and Water Availability in Pinus tabulaeformis of Northern China".FORESTS 12.2(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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