Divergent growth responses to warming and drying climates between native and non-native tree species in Northeast China
Divergent growth responses to warming and drying climates between native and non-native tree species in Northeast China
复制标题
中国东北地区本土树种和外来树种对气候变暖和干燥的不同生长响应
DOI：
10.1007/s00468-019-01848-z
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发表时间：
2019-04
期刊：
影响因子：
--
通讯作者：
Wang Guochen
中科院分区：
文献类型：
--
作者：
Song Lining;Zhu Jiaojun;Zhang Jinxin;Wang Kai;Lu Linyou;Wang Fengbai;Wang Guochen
Key messageIncreased intrinsic water use efficiency enhances tree growth of native species, but not that of non-native species under warming and drying climates in Northeast China.AbstractClimate change significantly affects forest ecosystems. However, little is known about whether non-native and native tree species show similar responses to global warming. We found different trends in the basal area increment (BAI) and tree-ring stable carbon isotope ratio (δ13C) of two non-native (Pinus sylvestrisvar.mongolicaandPopulus×xiaozhuanica) and two native (Pinus tabuliformisandUlmus pumila) tree species during the warming and drying periods from 1985 to 2014. The BAI of non-native tree species was stable, whereas that of the native tree species exhibited a significant increase. A significant increase in tree-ring δ13Ccorr(corrected for atmospheric changes in δ13C) for non-native tree species indicated increasing water stress. The intrinsic water use efficiency (iWUE, derived from tree-ring δ13C) of both non-native and native tree species increased significantly. However, the magnitude of the increase in iWUE was higher in non-native tree species than in native tree species, indicating that non-native tree species suffered stronger water stress. Increasing iWUE but no increase in BAI for non-native tree species suggested that water stress reduced stomatal conductance and, consequently, reduced carbon uptake. In contrast, increased iWUE accompanied by an enhanced BAI for native tree species indicated an increase in photosynthetic capacity induced by CO2fertilization. These findings suggest that non-native tree species would experience greater mortality under extreme drought conditions once water stress passes a physiological threshold. However, native tree species would suffer only slightly due to benefiting from CO2fertilization.
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影响因子：
4.6
作者：
Levesque M;Andreu-Hayles L;Pederson N
通讯作者：
Pederson N
最近全球变暖期间中国的突发干旱日益严重
影响因子：
4.6
作者：
Wang L;Yuan X;Xie Z;Wu P;Li Y
通讯作者：
Li Y
影响因子：
4
作者：
Hietz, P;Wanek, W;Dünisch, O
通讯作者：
Dünisch, O
DOI：
10.1017/cbo9781139051477
发表时间：
2012
期刊：
Advanced Materials Research
影响因子：
--
作者：
J. Flexas;F. Loreto;H. Medrano
通讯作者：
J. Flexas;F. Loreto;H. Medrano
影响因子：
3.7
作者：
Wenzhi Wang;Xiaohong Liu;W. An;Guobao Xu;Xiaomin Zeng
通讯作者：
Wenzhi Wang;Xiaohong Liu;W. An;Guobao Xu;Xiaomin Zeng