Intensified Interspecific Competition for Water after Afforestation with Robinia pseudoacacia into a Native Shrubland in the Taihang Mountains, Northern China
文献类型：期刊论文
| 作者 | Zhu, Wanrui1,4; Li, Wenhua4; Shi, Peili1,4; Cao, Jiansheng2; Zong, Ning4; Geng, Shoubao3 |
| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2021 |
| 卷号 | 13期号:2页码:16 |
| 关键词 | Robinia pseudoacacia afforestation water competition stable isotope composition the Taihang Mountains |
| DOI | 10.3390/su13020807 |
| 通讯作者 | Shi, Peili(shipl@igsnrr.ac.cn) ; Cao, Jiansheng(caojs@sjziam.ac.cn) |
| 英文摘要 | Understanding how soil water source is used spatiotemporally by tree species and if native species can successfully coexist with introduced species is crucial for selecting species for afforestation. In the rocky mountainous areas of the Taihang Mountains, alien Robinia pseudoacacia L. has been widely afforested into the native shrublands dominated by Ziziphus jujuba Mill var. spinosa and Vitex negundo L. var. heterophylla to improve forest coverage and soil nutrients. However, little is known about the water relation among species, especially seasonal water use sources in different microsites. We selected the soil and plant xylem samples of two opposite microtopographic sites (ridge and valley) monthly in the growth season to analyze isotope composition. The proportions of water sources were quantified by the MixSIAR model and compared pairwise between species, microsites and seasons. We found that deep subsoil water at a depth of 40-50 cm contributed up to 50% of the total water uptake for R. pseudoacacia and Z. jujuba in the growing season, indicating that they stably used deeper soil water and had intense water competition. However, V. negundo had a more flexible water use strategy, which derived more than 50% of the total water uptake from the soil layer of 0-10 cm in the rainy season, but majorly captured soil water at a depth of 30-50 cm in the dry season. Therefore, high niche overlaps were shown in V. negundo with the other two species in the dry season, but niche segregation was seen in the rainy season. The microtopographic sites did not shift the seasonal dynamic of the water source use patterns of the three studied species, but the water use niche overlap was higher in the valley than in the ridge. Taken together, the introduced species R. pseudoacacia intensified water competition with the native semi-arbor species Z. jujuba, but it could commonly coexist with the native shrub species V. negundo. Therefore, our study on seasonal water use sources in different microsites provides insight into species interaction and site selection for R. pseudoacacia afforestation in the native shrub community in rocky mountainous areas. It is better to plant R. pseudoacacia in the shrubland in the valley so as to avoid intense water competition and control soil erosion. |
| 资助项目 | National Basic Research Program of China[2015CB452705] ; National Natural Science Foundation of China[41877170] ; National Key Research and Development Program of China[2016YFC0502001] |
| WOS研究方向 | Science & Technology - Other Topics ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000612066700001 |
| 资助机构 | National Basic Research Program of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/136353]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Shi, Peili; Cao, Jiansheng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Agr Water Resources, Inst Genet & Dev Biol, Ctr Agr Resources Res, Shijiazhuang 050022, Hebei, Peoples R China 3.Guangdong Acad Sci, Guangzhou Inst Geog, Guangzhou 510070, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Wanrui,Li, Wenhua,Shi, Peili,et al. Intensified Interspecific Competition for Water after Afforestation with Robinia pseudoacacia into a Native Shrubland in the Taihang Mountains, Northern China[J]. SUSTAINABILITY,2021,13(2):16. |
| APA | Zhu, Wanrui,Li, Wenhua,Shi, Peili,Cao, Jiansheng,Zong, Ning,&Geng, Shoubao.(2021).Intensified Interspecific Competition for Water after Afforestation with Robinia pseudoacacia into a Native Shrubland in the Taihang Mountains, Northern China.SUSTAINABILITY,13(2),16. |
| MLA | Zhu, Wanrui,et al."Intensified Interspecific Competition for Water after Afforestation with Robinia pseudoacacia into a Native Shrubland in the Taihang Mountains, Northern China".SUSTAINABILITY 13.2(2021):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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