Hydrochemical Characteristics of Rainfall Redistribution in Three Forest Ecosystems in a Rocky Hillslope of North China
文献类型：期刊论文
| 作者 | Luo, Wenxing2,3; Zhang, Leiming1,3; Huang, Rong1,4; An, Zhaobo3; Du, Jianqing3,4; Hao, Yanbin2,3 |
| 刊名 | HYDROLOGICAL PROCESSES
 |
| 出版日期 | 2026-02-25 |
| 卷号 | 40期号:3页码:e70453 |
| 关键词 | forest types hydrochemical composition rainfall redistribution characteristics rocky mountainous regions solute migration |
| ISSN号 | 0885-6087 |
| DOI | 10.1002/hyp.70453 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | The Yanshan mountainous region in North China, characterised by its rocky and shallow soils, is an ecologically fragile area prone to significant water and nutrient loss. Forest vegetation plays a crucial role in maintaining the stability of the local ecosystem. However, the redistribution characteristics of rainfall and its associated nutrients-key direct sources of water and nutrients for forest ecosystems-have not been systematically studied in this region. In this study, three typical vegetation types on the same hillslope were selected to minimise variations in microclimate and site conditions. Field measurements of hydrological fluxes and laboratory analyses of carbon, nitrogen and phosphorus concentrations were conducted from April to September 2024 to investigate the effects of forest stands and rainfall event characteristics on water and nutrient redistribution at the canopy interface. The results indicated that Quercus variabilis, a deciduous species with a more open branching structure and a relatively low mean leaf area index (LAI), allowed greater water flux to reach the forest floor. In contrast, the denser canopies of Platycladus orientalis and Pinus tabuliformis resulted in higher interception losses. During the observation period, the amount of canopy interception by Quercus variabilis was 32% and 34% lower than that of Platycladus orientalis and Pinus tabuliformis, respectively. In terms of nutrient redistribution, solute concentrations varied significantly with rainfall intensity. The highest solute concentrations were observed during light rain events, and concentrations under Platycladus orientalis and Pinus tabuliformis were generally higher than those under Quercus variabilis, which was closely related to the accumulation time of deposits on the canopy and their dissolution into rainfall. Ultimately, the source-sink dynamics of nutrients at the canopy interface were jointly regulated by water flux and solute concentration. This study found that the canopy acted as a continuous net source of carbon. For nitrogen and phosphorus, however, it generally functioned as a net source but shifted to a net sink during light rain events. Among the stands, Pinus tabuliformis exhibited a significant advantage in the transfer of carbon and nitrogen, with net fluxes reaching the forest floor being 29% and 12% higher, respectively, than those under Quercus variabilis. This study elucidates the patterns of rainfall-related water and nutrient redistribution by typical vegetation in a rocky mountain area of North China, providing valuable insights for optimising forest composition to enhance the stability of water and nutrient dynamics in the ecosystem. |
| URL标识 | 查看原文 |
| WOS关键词 | DISSOLVED ORGANIC-MATTER ; CONIFEROUS FOREST ; THROUGHFALL ; STEMFLOW ; FLUXES ; CANOPIES |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001702383700001 |
| 出版者 | WILEY |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/221327]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Zhang, Leiming |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China; 2.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Chinese Acad Sci, Yanshan Mt Earth Crit Zone & Surface Flux Res Stn, Beijing, Peoples R China; 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Wenxing,Zhang, Leiming,Huang, Rong,et al. Hydrochemical Characteristics of Rainfall Redistribution in Three Forest Ecosystems in a Rocky Hillslope of North China[J]. HYDROLOGICAL PROCESSES,2026,40(3):e70453. |
| APA | Luo, Wenxing,Zhang, Leiming,Huang, Rong,An, Zhaobo,Du, Jianqing,&Hao, Yanbin.(2026).Hydrochemical Characteristics of Rainfall Redistribution in Three Forest Ecosystems in a Rocky Hillslope of North China.HYDROLOGICAL PROCESSES,40(3),e70453. |
| MLA | Luo, Wenxing,et al."Hydrochemical Characteristics of Rainfall Redistribution in Three Forest Ecosystems in a Rocky Hillslope of North China".HYDROLOGICAL PROCESSES 40.3(2026):e70453. |
入库方式： OAI收割
来源：地理科学与资源研究所
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