| 典型草原封育过程中土壤种子库的变化特征 |
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| 引用本文： | 黄欣颖,王堃,王宇通,阚雨晨,张玉娟,邵新庆.典型草原封育过程中土壤种子库的变化特征[J].草地学报,2011,19(1):38-42. |
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| 作者姓名： | 黄欣颖 王堃 王宇通 阚雨晨 张玉娟 邵新庆 |
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| 作者单位： | 黄欣颖,王堃,王宇通,张玉娟,邵新庆,HUANG Xin-ying,WANG Kun,WANG Yu-tong,ZHANG Yu-juan,SHAO Xin-qing(中国农业大学动物科技学院,北京,100193);阚雨晨,KAN Yu-chen(甘肃农业大学草业学院,甘肃兰州,730070) |
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| 基金项目： | 国家牧草产业技术体系项目，中国农业大学基本科研费专项，公益性行业(农业)科研专项 |
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| 摘 要： | 研究内蒙古巴林右旗退化草原围封不同阶段土壤种子库的数量和物种组成以及其与地E植被的关系.结果表明:随着封育年限增加,土壤种子库中物种数目呈增加趋势,一年生植物种类逐渐减少,多年生植物种类逐渐增加,至封育6年时一年生植物在典型草原群落中基本消失;土壤种子库密度随着围封年限增加而逐渐增加,表现为围封1年时草地土壤种子库密度...
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| 关 键 词： | 典型草原 围封 种子库 密度 |
Soil Seed Bank Dynamics during Natural Restoration by Fence in a Typical Steppe of Inner Mongolia |
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| HUANG Xin-ying,WANG Kun,WANG Yu-tong,KAN Yu-chen,ZHANG Yu-juan,SHAO Xin-qing.Soil Seed Bank Dynamics during Natural Restoration by Fence in a Typical Steppe of Inner Mongolia[J].Acta Agrestia Sinica,2011,19(1):38-42. |
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| Authors: | HUANG Xin-ying WANG Kun WANG Yu-tong KAN Yu-chen ZHANG Yu-juan SHAO Xin-qing |
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| Institution: | HUANG Xin-ying1,WANG Kun1,WANG Yu-tong1,KAN Yu-chen2,ZHANG Yu-juan1,SHAO Xin-qing1(1.Department of Grassland Science,College of Animal Science and Technology,China Agricultural University,Beijing 100193,China,2.Pratacultural College,Gansu Agricultural University,Lanzhou,Gansu Province 730070,China) |
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| Abstract: | This survey investigated the number of soil seed banks and species composition as well as the relationship between seed banks and vegetation at an enclosed degraded grassland at Balinyouqi,Inner Mongolia.Results show that the enclosure time increase was related to the increase of the species.In fencing succession stages,perennials increased,while,annuals decreased.After a 6-year enclosure,annual disappeared in the typical steppe.As enclosed years increase,density of seed banks increased.In the first enclose... |
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| Keywords: | Steppe Enclosed Seed bank Density |
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