| 放牧对草甸草原植被和土壤的影响 |
| |
| 引用本文： | 王明君,赵萌莉,崔国文,韩国栋. 放牧对草甸草原植被和土壤的影响[J]. 草地学报, 2010, 18(6): 758-762. DOI: 10.3969/j.issn.1007-0435.2010.06.002 |
| |
| 作者姓名： | 王明君 赵萌莉 崔国文 韩国栋 |
| |
| 作者单位： | 1. 东北农业大学动物科学技术学院, 黑龙江, 哈尔滨, 150030;2. 内蒙古农业大学生态环境学院, 内蒙古, 呼和浩特, 010018 |
| |
| 基金项目： | 国家自然科学基金项目(30060056); 国家十一五科技攻关项目(2006BAD16B01); 东北农业大学科研启动基金资助 |
| |
| 摘 要： | 应用典型样地法研究了放牧对草甸草原的影响,结果表明:长期重度放牧会导致草地现存量和枯枝凋落物减少,土壤有机质、全氮含量显著降低(P<0.05),土壤容重增大、土壤砂粒增加、土壤呼吸降低。草地植被、土壤各指标间存在显著的相关性,因子分析能够很好地将这些指标缩减为4个主因子,并能够将不同放牧梯度划分开,这对于草地合理利用及保护具有重要的应用价值。
|
| 关 键 词： | 草甸草原 放牧强度 土壤理化性质 因子分析 |
| 收稿时间： | 2009-01-18 |
Effect of Grazing Intensities on Vegetation and Soil in Meadow Steppe |
| |
| WANG Ming-jun,ZHAO Meng-li,CUI Guo-wen,HAN Guo-dong. Effect of Grazing Intensities on Vegetation and Soil in Meadow Steppe[J]. Acta Agrestia Sinica, 2010, 18(6): 758-762. DOI: 10.3969/j.issn.1007-0435.2010.06.002 |
| |
| Authors: | WANG Ming-jun ZHAO Meng-li CUI Guo-wen HAN Guo-dong |
| |
| Affiliation: | 1. The College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang Province 150030, China;2. The College of Ecology and Environmental Science, Inner Mongolia Agriculture University, Hohhot, Inner Mongolia 010018, China |
| |
| Abstract: | A series of comparative sampling plots were applied to study effects of selected grazing intensities on the meadow steppe.Results show that long-term heavy grazing reduce grass biomass and fallen leaf cover.Both soil organic matter(SOM) and total nitrogen(TN) was significantly lower(P<0.05).Soil bulk density and soil sand particles increased while soil respiration decreased in heavy grazing areas.There are significant correlations between grassland vegetation and soil with different indexes.Factor analysis ... |
| |
| Keywords: | Meadow steppe Grazing intensities Soil physical and chemical properties Factor analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《草地学报》浏览原始摘要信息 |
|
点击此处可从《草地学报》下载全文 |
|
