| 围封、浅耕翻处理对退化天然羊草草甸草地土壤物理性状的影响 |
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| 引用本文： | 张洪生,韩建国,石永红. 围封、浅耕翻处理对退化天然羊草草甸草地土壤物理性状的影响[J]. 四川草原, 2009, 0(1): 8-10 |
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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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| 摘 要： | 在河北沽源张家口农牧交错带研究了围封、浅耕翻改良措施对退化天然羊草草甸草地土壤物理性状的影响。结果表明,与自由放牧相比,围封、浅耕翻处理均可以明显改善草地土壤物理性状,提高了土壤含水量、土壤总空隙度、>0.25 mm粒径的水稳性团聚体的含量及团聚体结构稳定系数,显著降低了土壤容重;与浅耕翻处理相比,围封处理对退化羊草草甸草地土壤物理性状的改善最为有利。
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| 关 键 词： | 土壤团聚体 土壤容重 放牧 |
Effects of Enclosuring and Shallow Ploughing and Overgrazing on Soil Physical Properties of Degraded Grazing Grassland |
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| ZHANG Hong-sheng,HAN Jian-guo,SHI Yong-hong. Effects of Enclosuring and Shallow Ploughing and Overgrazing on Soil Physical Properties of Degraded Grazing Grassland[J]. Journal of Sichuan Grassland, 2009, 0(1): 8-10 |
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| Authors: | ZHANG Hong-sheng HAN Jian-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 Agricultural University;Qingdao266109;3.Institute of Animal Science;Shanxi Academy of Agricultural Science;Taiyuan 030032;China |
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| Abstract: | The effects of enclosuring and shallow ploughing on soil physical properties were studied in Guyuan grassland, Zhang Jiakou, Herbei Province, The results showed that： compared with overgrazing plots, encloure and shallow plough treatments could obviously improve the soil physical properties, increase soil water content, soil porosity, the content of.soil aggregate （ 〉 0.25mm） and soil aggregate stability, and reduce soil bulk density in the 10 - 20cm and 20 - 30cm surface layer. Compared with shallow ploughing treatment, enclosuring is the most practical way to improve soil physical properties of degraded grazing grassland. |
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| Keywords: | Soil aggregate Soil bulk density Grazing |
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