黄土区露天煤矿排土场复垦后土壤与植被的演变规律
恢复受损的土壤和植被是矿区生态恢复的关键,植被恢复过程的实质是植被-土壤复合生态系统相互作用的过程。该文通过典型小区调查的方法,选择山西平朔州安太堡露天煤矿复垦排土场为研究区,分析了不同复垦年限（3、5、10、12和17 a）土壤环境因子和乔木林地植被生物量的动态演变规律,建立了黄土区露天煤矿排土场复垦土壤环境因子和乔木林地植被生物量Logistic演替模型,并构建了土壤-植被交互影响的偏微分方程组。相关系数及显著性检验表明所建立的土壤各环境因子演变模型和乔木林复垦地的植被生物量演变模型有效,能够很好地反映排土场的土壤因子和植被生物量的动态演变过程;随着复垦年限的增加,研究区土壤环境因子质量不...
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| Published in | 农业工程学报 Vol. 29; no. 21; pp. 223 - 232 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
国土资源部土地整治重点实验室，北京 100035%中国地质大学 北京土地科学技术学院,北京,100083
2013
中国地质大学 北京土地科学技术学院，北京 100083 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2013.21.028 |
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| Summary: | 恢复受损的土壤和植被是矿区生态恢复的关键,植被恢复过程的实质是植被-土壤复合生态系统相互作用的过程。该文通过典型小区调查的方法,选择山西平朔州安太堡露天煤矿复垦排土场为研究区,分析了不同复垦年限（3、5、10、12和17 a）土壤环境因子和乔木林地植被生物量的动态演变规律,建立了黄土区露天煤矿排土场复垦土壤环境因子和乔木林地植被生物量Logistic演替模型,并构建了土壤-植被交互影响的偏微分方程组。相关系数及显著性检验表明所建立的土壤各环境因子演变模型和乔木林复垦地的植被生物量演变模型有效,能够很好地反映排土场的土壤因子和植被生物量的动态演变过程;随着复垦年限的增加,研究区土壤环境因子质量不断提升并逐渐接近原地貌,土壤因子和植被生物量都呈S型变化,符合Logistic生长演替模型;土壤环境因子与植被生物量二者交互作用明显,符合Kolmogorov捕食模型。该研究可为黄土区露天矿排土场土地复垦与生态恢复提供理论依据。 |
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| Bibliography: | Wang Jinman, Guo Lingli, Bai Zhongke, Yang Ruixuan, Zhang Meng （1. College of Land Science and Technology, China University of Geosciences （ Beijing）, Beijing 100083, China; 2. Key Laboratory of Land Consolidation and Rehabilitation Ministry of Land and Resources, Beijing 100035, China） 11-2047/S Loess Plateau is one of the typical opencast coal mining areas in China with its broken topography,loose soil structure, and destroyed natural vegetation, and the ecological environment is fragile in this area. Coal mining has formed a large waste dump, which had imposed great damage on the surface of the landscape. It not only occupied a large amount of land, but also influenced the animal and plant development; it is a serious threat to the ecological environment. Reconstruction of the damaged soil and vegetation is the key to ecological restoration in the mining area, and the process of vegetation restoration actually is an interaction process of a complex ecosystem between vegetation and soil. The typical plot surv |
| ISSN: | 1002-6819 |
| DOI: | 10.3969/j.issn.1002-6819.2013.21.028 |