Water stable isotope characteristics and water use strategies of co-occurring plants in ecological and economic forests in subtropical monsoon regions
文献类型：期刊论文
| 作者 | Dai, Junjie1,3; Zhang, Xinping2,3; Wang, Li1,3; Wang, Rui3; Luo, Zidong3; He, Xinguang2,3; Rao, Zhiguo3 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 621页码:15 |
| 关键词 | Plant water use Convergence Seasonal drought Isotopic fractionation Leaf water East Asian Monsoon Region |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2023.129565 |
| 通讯作者 | Zhang, Xinping(zxp@hunnu.edu.cn) ; Wang, Li(wangli5208@nwsuaf.edu.cn) |
| 英文摘要 | Identifying the spatio-temporal variation in water use by co-occurring species in mixed forests can determine whether there is hydrological niche partitioning or niche overlapping, i.e., whether plant co-occurrence brings about resource complementation or interspecific competition, and provides a reference for plantation manage-ment. Water stable isotopic compositions in precipitation, soil, and four plants (xylem and leaf) in ecological and economic forests and hydrometeorological factors were continuously monitored for a year, and the water uptake by plants was determined using a Bayesian MixSIR model. The isotopic compositions of soil water and plant water in the ecological forest (Camphora camphora and Cunninghamia lanceolate) and economic forest (Castanea mollissima and Camellia pitardii) showed similar seasonal variation, and no significant difference between their mean isotopic values was found (p > 0.05). The isotopic compositions in leaf water of different plants in the two forests were controlled by xylem water isotope and meteorological factors, rather than soil moisture conditions. With decreasing soil water availability, the water sources of C. camphora, C. lanceolate, and C. pitardii changed from shallow to deep, while the water use pattern of C. mollissima was insensitive to changing soil moisture conditions. The water source overlapping between C. camphora and C. lanceolate in the ecological forest might generate water resource competition during the dry period, limiting their ecological functions. On the other hand, the water source partitioning between C. mollissima and C. pitardii in the economic forest facilitated the water resource allocation. Our study suggested that the overlapping and partitioning of hydrological niches among species in mixed forests were species-specific and provided a scientific basis for fully exploiting the ecological and economic benefits of silviculture ecosystems. |
| WOS关键词 | SOIL-WATER ; UPTAKE DEPTH ; LEAF WATER ; SEASONAL-VARIATIONS ; PINUS-SYLVESTRIS ; STEM WATER ; OXYGEN ; DROUGHT ; TRANSPIRATION ; FRACTIONATION |
| 资助项目 | National Natural Science Foundation of China[41772373] ; National Natural Science Foundation of China[42001080] ; National Natural Science Foundation of China[41977012] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001005108400001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194996]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Xinping; Wang, Li |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China 2.Key Lab Geospatial Big Data Min & Applicat, Changsha, Hunan, Peoples R China 3.Hunan Normal Univ, Coll Geog Sci, Changsha 410081, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dai, Junjie,Zhang, Xinping,Wang, Li,et al. Water stable isotope characteristics and water use strategies of co-occurring plants in ecological and economic forests in subtropical monsoon regions[J]. JOURNAL OF HYDROLOGY,2023,621:15. |
| APA | Dai, Junjie.,Zhang, Xinping.,Wang, Li.,Wang, Rui.,Luo, Zidong.,...&Rao, Zhiguo.(2023).Water stable isotope characteristics and water use strategies of co-occurring plants in ecological and economic forests in subtropical monsoon regions.JOURNAL OF HYDROLOGY,621,15. |
| MLA | Dai, Junjie,et al."Water stable isotope characteristics and water use strategies of co-occurring plants in ecological and economic forests in subtropical monsoon regions".JOURNAL OF HYDROLOGY 621(2023):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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