| 亚高山退化草甸土壤性状分析及评价因子的选择 |
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| 引用本文： | 王岩春,干友民,李志丹.亚高山退化草甸土壤性状分析及评价因子的选择[J].安徽农业科学,2006,34(13):3120-3123. |
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| 作者姓名： | 王岩春 干友民 李志丹 |
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| 作者单位： | 1. 四川农业大学草业科学系,四川雅安,625014
2. 中国农业科学院热带牧草研究中心,海南儋州,571737 |
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| 基金项目： | 四川省科技厅十五科技攻关项目(02NG020-006) |
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| 摘 要： | 对草地质量的评价和退化草地的重建,有一个很重要的内容就是建立起能够准确反映草地质量状况的指标体系,这既可以为基层草地工作者提供判断草地退化程度的简明指标,也有助于开展草地生态保护和恢复重建工作。根据国内外对草地退化研究的最新认识,初步构建了选择衡量亚高山草甸退化程度的理化指标原则,并通过对川西北不同放牧强度退化草甸土壤理化性质的测试分析,研究了各理化指标的变异与草地退化的相互放大作用,从而初步确定了亚高山草甸退化程度的评价因子。
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| 关 键 词： | 亚高山退化草甸 放牧强度 土壤性状 评价因子 |
| 文章编号： | 0517-6611（2006）13-3120-04 |
| 收稿时间： | 04 15 2006 12:00AM |
| 修稿时间： | 2006-04-15 |
Analysis of the Characteristic and Element of Criterion for Soil Degradation in the Sub-alpine Meadow |
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| WANG Yan-ehun et al.Analysis of the Characteristic and Element of Criterion for Soil Degradation in the Sub-alpine Meadow[J].Journal of Anhui Agricultural Sciences,2006,34(13):3120-3123. |
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| Authors: | WANG Yan-ehun |
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| Institution: | Deparment of Grassland Science ,Sichuan Agricultural University, Yaan, Sichuan 625014 |
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| Abstract: | For the evaluation of grassland quality and reconstruction of depredated grassland,a very important element is to establish a indicator system which can accurately reflect the quality conditions of grassland,can not only offer concise indicators that are used to judge the degradation degree of grassland,but also help to the protection and restoration of grassland entironment.Based on the up-to-date research of domestic and overseas grassland degradation,in this paper the principle for choosing the soil physical property indicators that measured the degradation degree of the mountain meadow was preliminarily put forward.The authors tested the physical and chemical proterities of soil under different intensity in northwest Sichuan.Based on the analysis of data,the relationship between the change of soil characteristic and the degree of grassland degradation was described,and the element of critenion for the sub-alpine grassland degradation in northwest Sichuan was dctcrmined. |
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| Keywords: | Sub-alpine degenerated meadow Grazing intensity Soil characteristic Element of criterion |
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