Changes of preferential flow in short-rotation eucalyptus plantations: field experiments and modeling
文献类型：期刊论文
| 作者 | Zhao, Mingquan2; Huang, You2; Lei, Tingwu5; Deng, Yusong2; Yang, Gairen2; Ban, Yunyun1; Yu, Xinxiao3,4; Huang, Yuhan2,3,4 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 622页码:13 |
| ISSN号 | 0022-1694 |
| 关键词 | Preferential flow Plantation Root Model Double ring |
| DOI | 10.1016/j.jhydrol.2023.129663 |
| 通讯作者 | Huang, Yuhan(huangyuhan0710@foxmail.com) |
| 英文摘要 | As an important part of the hydrological cycle, preferential flow significantly improves infiltration properties and limits the ability of soil to store, filter, and buffer water. However, the effect of roots on the preferential flow infiltration process in forest ecosystems is still unclear. This study measured the preferential flow infiltration process in short-rotation eucalyptus plantations (four forest ages of 1, 2, 3, and 5 years) with the surface -positioned double-ring infiltrometer in south subtropical area, China. Overall, the cumulative infiltration (CI), initial infiltration rate (IIR), and stable infiltration rate (SIR) increased with forest age. The CI, IIR, and SIR of the 5-year-old eucalyptus plantation were the highest in four aged eucalyptus plantations. Correlation analysis showed that root biomass was positively and significantly correlated with CI (p < 0.05), IIR (p < 0.01), and SIR (p < 0.01), which showed that the preferential flow increased with root biomass. However, the correlations between total porosity (TP) and IIR, SIR, and CI were all not significant (p > 0.05). The dye coverage of the inner and outer ring tangents, which were used to observe the strength of lateral preferential flows, was significantly and positively correlated with CI (p < 0.01), IIR (p < 0.01), and SIR (p < 0.01). The dye coverage of the outer ring tangent was significantly and positively correlated with root biomass (p < 0.05). So, the lateral preferential flows depended on root biomass and increased with forest age. The Horton model, which had higher stability and accuracy than the Kostiakov and Philip models, was the most suitable model to describe the preferential flow infiltration process in eucalyptus plantations. As important factors influencing the evolution of preferential flow in eucalyptus plantation, root biomass was used in predicting the parameters of the Horton model through regression analysis. Then, a unified model predicting the preferential flow infiltration process in short-rotation eucalyptus plantations was proposed and verified. This study achieved the quantitative measurement of pref-erential flow infiltration process, explored the importance of roots in the production of preferential flow chan-nels, and found the lateral preferential flow played an important role in infiltration in forests. These results can provide a theoretical basis for improving the efficiency of water resource management in plantation, and opti-mizing the model of preferential flow infiltration process in plantation. |
| WOS关键词 | SOIL-WATER CONTENT ; HYDRAULIC CONDUCTIVITY ; MATRIX INFILTRATION ; DOUBLE-RING ; FOREST ; INFILTRABILITY ; VEGETATION ; PATHWAYS ; ROOTS ; VISUALIZATION |
| 资助项目 | Guangxi Science and Technology Base and Talent Special Project[AD22035032] ; Natural Science Foundation of Guangxi[2021GXNSFBA196020] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001002507800001 |
| 资助机构 | Guangxi Science and Technology Base and Talent Special Project ; Natural Science Foundation of Guangxi |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/197791]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Huang, Yuhan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Guangxi Univ, Coll Forestry, Guangxi Key Lab Forest Ecol & Conservat, Nanning 530004, Peoples R China 3.Beijing Forestry Univ, Key Lab State Forestry & Grassland Adm Soil & Wate, Beijing 100083, Peoples R China 4.Beijing Forestry Univ, Sch Soil & Water Conservat, Metropolitan Area Forest Ecosyst Res Stn, Beijing 100083, Peoples R China 5.Shandong Agr Univ, Coll Water Conservancy & Civil Engn, Tai An 271018, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Mingquan,Huang, You,Lei, Tingwu,et al. Changes of preferential flow in short-rotation eucalyptus plantations: field experiments and modeling[J]. JOURNAL OF HYDROLOGY,2023,622:13. |
| APA | Zhao, Mingquan.,Huang, You.,Lei, Tingwu.,Deng, Yusong.,Yang, Gairen.,...&Huang, Yuhan.(2023).Changes of preferential flow in short-rotation eucalyptus plantations: field experiments and modeling.JOURNAL OF HYDROLOGY,622,13. |
| MLA | Zhao, Mingquan,et al."Changes of preferential flow in short-rotation eucalyptus plantations: field experiments and modeling".JOURNAL OF HYDROLOGY 622(2023):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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