Spatial variability of soil properties in relation to land use and topography in a typical small watershed of the black soil region, northeastern China
文献类型：期刊论文
| 作者 | Wei, JB; Xiao, DN; Zeng, H; Fu, YK; Wei, JB, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China |
| 刊名 | ENVIRONMENTAL GEOLOGY
 |
| 出版日期 | 2008 |
| 卷号 | 53期号:8页码:1663-1672 |
| 关键词 | Soil Properties Spatial Variability Geostatistics Gis Northeastern China |
| ISSN号 | 0943-0105 |
| 英文摘要 | Soil degradation resulted from unreasonable land use and erosion has been a serious problem in the black soil region of northeastern China. This paper seeks to understand the relationships between topsoil properties and topography and land use for land management targeting at improving soil quality in this region. A total of 292 soil samples and 81 volumetric rings were taken from a typical small watershed of the region in June 2005 for examining total carbon (TC), total nitrogen (TN), soil texture (classified into gravel, sand, silt, and clay), and bulk density (rho(b)), respectively. Spatial variability of these soil properties was evaluated with classical statistics and geostatistics methods. The results of classical statistics indicated that TC, TN, sand, silt, clay content, and rho(b) were moderate variables while gravel had great variability. Soil properties were mainly correlated to slope position, elevation and land types. Geostatistical analyses showed that the spatial autocorrelation for TC, TN, and silt was weak, strong for clay and moderate for and rho(b) sand, respectively. The spatial variations of soil properties are affected comprehensively by topographic factors, land use, erosion, and erosion control in this watershed. Past erosion, however, is the most important component to induce change of soil properties. In this small watershed, current soil and water conservation measures play an important role in controlling soil loss. But the restoration of soil properties was unsatisfactory. Comparing with untilled soil of this region, TC, TN, silt content are excessively low; whereas rho(b), sand and clay content are excessively high; gravel appears at most sampling locations. It is necessary for improving soil properties to protect forest and grassland and change cultivation system of farmlands. |
| 学科主题 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000252798500006 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54541]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所 |
| 通讯作者 | Wei, JB, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, JB,Xiao, DN,Zeng, H,et al. Spatial variability of soil properties in relation to land use and topography in a typical small watershed of the black soil region, northeastern China[J]. ENVIRONMENTAL GEOLOGY,2008,53(8):1663-1672. |
| APA | Wei, JB,Xiao, DN,Zeng, H,Fu, YK,&Wei, JB, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China.(2008).Spatial variability of soil properties in relation to land use and topography in a typical small watershed of the black soil region, northeastern China.ENVIRONMENTAL GEOLOGY,53(8),1663-1672. |
| MLA | Wei, JB,et al."Spatial variability of soil properties in relation to land use and topography in a typical small watershed of the black soil region, northeastern China".ENVIRONMENTAL GEOLOGY 53.8(2008):1663-1672. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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