In Situ Rainwater Collection and Infiltration System Alleviates the Negative Effects of Drought on Plant-Available Water, Fine Root Distribution and Plant Hydraulic Conductivity
文献类型：期刊论文
| 作者 | Ma, Changkun2; Meng, Haobo2; Xie, Biao3; Li, Qian3; Li, Xiangdong4; Zhou, Beibei2; Wang, Quanjiu2; Luo, Yi1 |
| 刊名 | FORESTS
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 13期号:12页码:13 |
| 关键词 | fine-root distribution plant-available water hydraulic characteristics Robinia pseudoacacia Loess Plateau |
| DOI | 10.3390/f13122082 |
| 通讯作者 | Wang, Quanjiu(wquanjiu@163.com) ; Luo, Yi(luoyi@igsnrr.ac.cn) |
| 英文摘要 | Soil water status and fine-root characteristics are the foundation for implementing forest water-management strategies in semiarid forest plantations, where rainwater is always the sole source of water for plant growth. Rainwater management and utilization are effective strategies to alleviate water scarcity in semiarid areas as ground water is always inaccessible there. Through the implementation of an in situ rainwater collection and infiltration system (IRCIS), we investigated the effects of IRCIS on soil water and fine-root distributions in the 0-5 m soil profile in a wet (2015, 815 mm) and a dry year (2016, 468 mm) in rainfed Robinia pseudoacacia forests in the Loess Plateau region of China. The results showed drought significantly decreased plant water availability and hydraulic conductivity of roots and branches, but strongly increased soil moisture deficits and fine-root (<2 mm diameter) biomass. With the implementation of IRCIS, soil profile available water and plant hydraulic conductivity can be significantly increased, but soil moisture deficits and fine-root (<2 mm diameter) biomass can be significantly decreased. Drought also significantly influenced the root distribution of Robinia pseudoacacia. The maximum depth of Robinia pseudoacacia roots in the dry year was significantly greater than in the wet year. Therefore, Robinia pseudoacacia can absorb shallow (0-1.5 m) soil water in wet years, while utilizing deep (>1.5 m) soil water in dry years to maintain normal growth and resist drought stress. The results of this study will contribute to the formulation of appropriate strategies for planning and managing rainwater resources in forest plantations. |
| WOS关键词 | LOESS PLATEAU ; SOIL-MOISTURE ; SPATIAL-DISTRIBUTION ; HILLY REGION ; MECHANISMS ; MORTALITY ; JUJUBE ; DEPTH ; RWCI |
| 资助项目 | National Natural Science Foundation of China ; Major Science and Technology Projects of the XPCC ; Major Science and Technology Projects of Autonomous Region ; [42107326] ; [41830754] ; [52179042] ; [2021AA003-2] ; [2020A01003-3] |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000901314300001 |
| 资助机构 | National Natural Science Foundation of China ; Major Science and Technology Projects of the XPCC ; Major Science and Technology Projects of Autonomous Region |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/188252]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Quanjiu; Luo, Yi |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg, Xian 710048, Peoples R China 3.Northwest A&F Univ, Coll Hort, Xianyang 712100, Peoples R China 4.Yanan Univ, Sch Life Sci, Yanan 716000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Changkun,Meng, Haobo,Xie, Biao,et al. In Situ Rainwater Collection and Infiltration System Alleviates the Negative Effects of Drought on Plant-Available Water, Fine Root Distribution and Plant Hydraulic Conductivity[J]. FORESTS,2022,13(12):13. |
| APA | Ma, Changkun.,Meng, Haobo.,Xie, Biao.,Li, Qian.,Li, Xiangdong.,...&Luo, Yi.(2022).In Situ Rainwater Collection and Infiltration System Alleviates the Negative Effects of Drought on Plant-Available Water, Fine Root Distribution and Plant Hydraulic Conductivity.FORESTS,13(12),13. |
| MLA | Ma, Changkun,et al."In Situ Rainwater Collection and Infiltration System Alleviates the Negative Effects of Drought on Plant-Available Water, Fine Root Distribution and Plant Hydraulic Conductivity".FORESTS 13.12(2022):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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