| 围封、浅耕翻改良对退化羊草草甸草地土壤种子库的影响 |
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| 引用本文： | 张洪生,韩建国,石永红. 围封、浅耕翻改良对退化羊草草甸草地土壤种子库的影响[J]. 四川草原, 2009, 0(3): 6-9 |
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| 作者姓名： | 张洪生 韩建国 石永红 |
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| 作者单位： | 中国农业大学草地研究所;青岛农业大学农学与植物保护学院;山西省农科院畜牧兽医研究所; |
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| 基金项目： | 国家“十一五”科技攻关课题(2004BA5281301) |
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| 摘 要： | 应用幼苗萌发法比较研究了浅耕翻改良、围封改良和自由放牧对退化羊草草甸草地土壤种子库的影响。结果表明,浅耕翻改良、围封改良措施均可显著提高退化羊草草地土壤种子库的密度,改善种子库的物种组成结构,其中围封改良较浅耕翻改良措施对土壤种子库的补偿和修复更为有利。
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| 关 键 词： | 种子库 围封 浅耕翻 羊草草甸 |
Effects of the Enclosuring and Shallow Ploughing Improvement on the Soil Seed Bank in Degraded Leymus Chinensis Meadow Grassland |
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| ZHANGHong- sheng,,HANJian- guo,SHI Yong- hong. Effects of the Enclosuring and Shallow Ploughing Improvement on the Soil Seed Bank in Degraded Leymus Chinensis Meadow Grassland[J]. Journal of Sichuan Grassland, 2009, 0(3): 6-9 |
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| Authors: | ZHANGHong- sheng HANJian- guo SHI Yong- hong |
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| Affiliation: | 1.Institute of Grassland Science;China Agricultural University;Beijing100094;China;2.College of agriculture and plant protection;Qingdao Agricu ltural University;Qingdao266109;3.Institute of Animal Science;Shanxi Academy of Agricultural Science;Taiyuan 030032;China |
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| Abstract: | Effects of the enclosuring,shallow ploughing and overgrazing on the soil seed bank in degraded Leymus chinensis meadow grassland were studied. Both enclosuring and shallowploughing could improve the density (seeds m-)2 and species components of the soil seed bank. And compared with enclosuring,shallow ploughing was the better way to recover and enhance the densityofthe soil seed bank in degraded Leymus chinensis meadow grassland. |
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| Keywords: | Seed bank Enclosuring Shallowploughing Leymus chinensis meadow |
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