Influence of types of restorative vegetation on the wetting properties of aggregates in a severely degraded clayey Ultisol in subtropical China
文献类型：期刊论文
| 作者 | Peng, X; Zhang, B; Zhao, Q; Horn, R; Hallett, PD |
| 刊名 | GEODERMA
 |
| 出版日期 | 2003-08-01 |
| 卷号 | 115期号:3-4页码:313-324 |
| 关键词 | aggregate sorptivity soil degradation hydrophobic organic matter restorative vegetation water repellency clayey ultisols |
| ISSN号 | 0016-7061 |
| DOI | 10.1016/S0016-7061(03)00085-5 |
| 通讯作者 | Zhang, B() |
| 英文摘要 | Vegetation may affect soil physical behaviour because of increases in hydrophobic organic compounds that bind soil particles and reduce the rate of wetting by inducing a low level of water repellency. These processes have not been isolated previously, so the aim of this study was to evaluate how different types of restorative vegetation influence the water repellency and pore structure of soil. We measured an index of water repellency, R, as the ratio between water and ethanol sorptivities on the surfaces of different size soil aggregates from a severely degraded clayey Ultisol. R is proportional to the decrease in water sorptivity. The treatments were (1) eroded bare land, two types of restorative vegetation-(2) deciduous Camphor trees (Cinnamomum camphora) and (3) leguminous Lespedeza shrubs (Lespedeza bicolor), (4) Masson pine (Pinus massoniana), and (5) a vegetable garden with large annual inputs of pig manure. R increased from <1.5 in eroded bare land up to the range from 2.0 to 4.4 when this land was planted with vegetation. Undisturbed soil under Masson Pine had an R congruent to 3. Large (20-50 mm) aggregates had greater water repellency and porosity than small (10-20 mm) aggregates, particularly under Camphor trees. The type of vegetation and pore structure therefore affects water repellency. Isolating these properties will help us understand how plant selection and soil management influence soil physical behaviour and structure dynamics. (C) 2003 Elsevier Science B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | WATER-REPELLENCY ; ORGANIC-MATTER ; SOIL-STRUCTURE ; INTRINSIC SORPTIVITY ; ARABLE SOILS ; HYDROPHOBICITY ; STABILITY ; MANAGEMENT ; TRANSPORT ; RANGE |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000183916600009 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559227 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Zhang, B |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, Lab Mat Cycling Pedosphere, Nanjing 210008, Peoples R China 2.CAU Kiel, Inst Plant Nutr & Soil Sci, D-24118 Kiel, Germany 3.Scottish Crop Res Inst, Plant Soil Interface Programme, Dundee DD2 5DA, Scotland |
| 推荐引用方式 GB/T 7714 | Peng, X,Zhang, B,Zhao, Q,et al. Influence of types of restorative vegetation on the wetting properties of aggregates in a severely degraded clayey Ultisol in subtropical China[J]. GEODERMA,2003,115(3-4):313-324. |
| APA | Peng, X,Zhang, B,Zhao, Q,Horn, R,&Hallett, PD.(2003).Influence of types of restorative vegetation on the wetting properties of aggregates in a severely degraded clayey Ultisol in subtropical China.GEODERMA,115(3-4),313-324. |
| MLA | Peng, X,et al."Influence of types of restorative vegetation on the wetting properties of aggregates in a severely degraded clayey Ultisol in subtropical China".GEODERMA 115.3-4(2003):313-324. |
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来源：南京土壤研究所
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