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| 草篱对坡耕地水土流失和土壤养分的影响 | |
| 引用本文： | 牛德奎,黄传伟,武菊英.草篱对坡耕地水土流失和土壤养分的影响[J].安徽农业科学,2009,37(7):3079-3081. |
| 作者姓名： | 牛德奎 黄传伟 武菊英 |
| 作者单位： | 1. 江西农业大学国土资源与环境学院,江西南昌,330045 2. 江西农业大学国土资源与环境学院,江西南昌,330045;北京农林科学院草业与环境研究发展中心,北京,100097 3. 北京农林科学院草业与环境研究发展中心,北京,100097 |
| 基金项目： | 中-意政府间科技合作专项基金，农业部社会公益研究项目，北京市农委农业科技示范项目 |
| 摘 要： | 目的]研究不同草篱对坡耕地水土流失和土壤养分的影响。方法]采用人工模拟降雨法研究狼尾草和野古草2种草篱对坡耕地水土流失和土壤养分的影响。结果]与对照相比,在坡耕地上狼尾草的水土保持效果优于野古草,平均减少地表径流52%,减少土壤侵蚀量为76%。在0~60 cm土壤中野古草和狼尾草处理的铵态氮含量接近,均超过对照;0~100 cm土壤中野古草处理的硝态氮和速效磷的平均含量分别为11.51和5.30 mg/kg,均显著高于狼尾草和对照处理;各处理土壤各层次全量养分含量随土壤深度增加而降低,但差异不大。草篱对土壤各层次全量养分含量的影响不明显,但对土壤速效养分含量及其分布的影响显著。结论]草篱能有效地减少坡耕地地表径流和土壤侵蚀量。 |
| 关 键 词： | 草篱 坡耕地 水土流失 土壤养分 |
Effects of Grass Hedgerow on the Soil and Water Loss and Soil Nutrient of Slope Land |
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| NIU De-kui et al.Effects of Grass Hedgerow on the Soil and Water Loss and Soil Nutrient of Slope Land[J].Journal of Anhui Agricultural Sciences,2009,37(7):3079-3081. | |
| Authors: | NIU De-kui |
| Institution: | NIU De-kui et al(College of L, Resources , Environment,Jiangxi Agricultural University,Nanchang,Jiangxi 330045) |
| Abstract: | Objective] The aim was to study the effects of different grass hedgerows on the soil and water loss and soil nutrient of slope land.Method] The artificially simulated rainfall was used to study the effects of 2 grass hedgerows,i.e.Pennisetum alopecuroide and Arundinella hirta on the soil and water loss and soil nutrient of slope land.Result] Compared with CK,P.alopecuroide showed better effect on soil and water conservation than A.hirta,with the runoff reduced by 52% and soil loss decreased by 76% averag... |
| Keywords: | Grass hedgerow Slope land Soil and water loss Soil nutrient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |