Factors determining soil nutrient distribution in a small-scaled watershed in the purple soil region of Sichuan Province, China
文献类型：期刊论文
| 作者 | Wang, H. J.1; Shi, X. Z.1; Yu, D. S.1; Weindorf, David C.2; Huang, B.1; Sun, W. X.1; Ritsema, Coen J.3; Milne, Eleanor4 |
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 105期号:2页码:300-306 |
| 关键词 | Watershed Soil nutrient distribution Purple Soil China |
| ISSN号 | 0167-1987 |
| DOI | 10.1016/j.still.2008.08.010 |
| 通讯作者 | Shi, X. Z.(xzshi@issas.ac.cn) |
| 英文摘要 | Determining soil nutrient distribution is critical to identify sites which are at risk of N and P loading. Equally important are determining factors that influence such distribution (e.g. land use, land management, topography, etc.). In this research, soil nutrient distribution and its influencing factors were studied in a small-scaled watershed in the purple soil region of Sichuan Province, China. The watershed is 1.3 km(2) with a complex land management system including agriculture and forestry. Surface soil samples (0-20 cm) from 48 sites within the watershed were collected in the spring of 1999 and analysed for chemical properties. When spatial distribution patterns of soil organic matter and soil nutrients were considered, several patterns were evident. Soil organic matter and total nitrogen coincided with high soil nutrients in the center of the watershed. Total phosphorus was linked to low soil nutrient contents on hilltops, while total potassium was characterized by low variability and high soil nutrient content throughout the watershed. Water-soluble nutrients in soils were highly variable throughout the watershed. Results of this study indicate that land use, topography and other variables play important roles in controlling the spatial distribution of most soil nutrients. However, the relative roles of these indices were nutrient specific. The relationship was therefore complex. Land use, silt, and sand content contributed to a high level of heterogeneity for soil organic matter and total nitrogen with the former being the dominant factor. Land use, particle size distribution (silt and sand) and topographic factors (slope and elevation) contributed to the variability of total phosphorus. However, particle size distribution and topographic factors were the dominant factors affecting total phosphorus. Elevation influenced the concentration of total potassium and land use controlled the concentration of dissolved phosphorous. No significant relationship was found between the studied characteristics and nitrate nitrogen. (C) 2008 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | DIFFERENT LAND USES ; ORGANIC-CARBON ; LANDSCAPE POSITION ; LOESS PLATEAU ; HILLY AREA ; TILLAGE ; VARIABILITY ; PHOSPHORUS ; MANAGEMENT ; MATTER |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000272062400017 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558780 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Shi, X. Z. |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China 2.Louisiana State Univ, AgCtr, Baton Rouge, LA 70803 USA 3.Alterra Green World Res, Wageningen, Netherlands 4.Univ Reading, Dept Soil Sci, Reading, Berks, England |
| 推荐引用方式 GB/T 7714 | Wang, H. J.,Shi, X. Z.,Yu, D. S.,et al. Factors determining soil nutrient distribution in a small-scaled watershed in the purple soil region of Sichuan Province, China[J]. SOIL & TILLAGE RESEARCH,2009,105(2):300-306. |
| APA | Wang, H. J..,Shi, X. Z..,Yu, D. S..,Weindorf, David C..,Huang, B..,...&Milne, Eleanor.(2009).Factors determining soil nutrient distribution in a small-scaled watershed in the purple soil region of Sichuan Province, China.SOIL & TILLAGE RESEARCH,105(2),300-306. |
| MLA | Wang, H. J.,et al."Factors determining soil nutrient distribution in a small-scaled watershed in the purple soil region of Sichuan Province, China".SOIL & TILLAGE RESEARCH 105.2(2009):300-306. |
入库方式： iSwitch采集
来源：南京土壤研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。