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| 河北省典型样带土壤类型空间格局特征 |
| Spatial pattern characteristics of soil types in typical transects of Hebei Province, China |
| Received:May 20, 2019 |
| DOI：10.13254/j.jare.2019.0268 |
| 中文关键词: 河北典型样带，土壤类型，空间分布格局，景观指数 |
| 英文关键词: Hebei typical transects, soil type, spatial distribution pattern, landscape index |
| 基金项目:国土资源部公益性行业科研专项经费项目（201311060）；河北省科技支撑计划项目（132276329） |
| Author Name | Affiliation | E-mail | | LI Jin-pu | Resources and Environmental Science College, Hebei Agricultural University, Baoding 071001, China | | | SHI Yao | Resources and Environmental Science College, Hebei Agricultural University, Baoding 071001, China | | | YUAN Da-peng | Resources and Environmental Science College, Hebei Agricultural University, Baoding 071001, China | | | CHEN Qi-le | Resources and Environmental Science College, Hebei Agricultural University, Baoding 071001, China | | | WANG Shu-tao | Land and Resources College, Hebei Agricultural University, Baoding 071001, China | wangst@hebau.edu.cn |
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| 中文摘要: |
| 研究土壤类型空间格局特征，分析土壤类型分布的规律性，对区域土壤资源合理利用具有重要意义。本研究选取河北省典型样带作为研究区，结合地形因子与行政区边界数据将河北省典型样带划为四个生态区，通过运用GIS（地理信息系统）技术和景观生态学方法，对各生态区的土壤类型空间分布格局进行定量分析。结果表明：各生态区之间土壤类型的景观分离度指数差异较大，但大部分土壤类型的景观分离度指数在0~5范围内聚集分布，四个生态区土壤类型斑块分离度依次为中部平原区 > 山前平原区 > 太行山区 > 滨海平原区。各生态区土壤斑块的复杂程度为：太行山区与山前平原区复杂程度较高，滨海平原区复杂程度较低，而中部平原区土壤类型斑块最为简单。太行山区的土壤类型丰富度最高，异质性较大，空间分布相对均匀；滨海平原区的土壤类型斑块破碎化程度最小；中部平原区的土壤景观格局主要由几种面积较大的土壤类型所支配，而山前平原区的土壤景观由多种土壤类型共同支配。本研究可为土壤资源的合理利用与保护提供有效参考。 |
| 英文摘要: |
| Spatial pattern characteristics of different soil types and regularity of soil type distribution are of great significance for the sustainable use of regional soil resources. Based on geomorphological factors, the typical transects in Hebei Province was divided into four ecological regions. The spatial distribution of soil types over these four ecological regions was analyzed quantitatively using a geographic information system (GIS) and by applying the principles of landscape ecology. The dissociation index of soil types in the four ecological regions were within a range 0~5, indicating clustered distribution. The soil types of the central plain area showed a high degree of landscape isolation, whereas soils of the littoral plain area showed a low degree of landscape isolation. Soil type in the Taihang Mountain area and in the piedmont plain area were more complex, soil type diversity in the littoral plains area was less complex, and soil type complexity was the lowest in the central plains area. Soil type richness in the Taihang Mountain area was the highest, indicating high heterogeneity within this area. The spatial pattern of soil types in the littoral plain area showed a low degree of fragmentation. The spatial soil pattern in the central plain area was dominated by several soil types covering extensive areas, whereas the piedmont plain area was dominated by multiple soil types. This study provides a useful reference for the sustainable use and protection of soil resources. |
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