| 冻融作用对农田磷素转化迁移影响研究进展 |
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| 引用本文： | 李贵圆,范昊明.冻融作用对农田磷素转化迁移影响研究进展[J].中国水土保持科学,2011,9(6):114-120. |
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| 作者姓名： | 李贵圆 范昊明 |
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| 作者单位： | 沈阳农业大学水利学院,110866,沈阳 |
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| 基金项目： | 国家自然科学基金“辽西褐土旱作农田区沟灌侵蚀机理与侵蚀过程研究”(41071183);国家自然科学青年基金“东北旱地耕作土壤冻融作用机理与春季解冻期土壤侵蚀模拟”(40601054) |
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| 摘 要： | 冻融作用引起水土流失,造成磷分等无机污染物流到下游江河湖泊等水体,引起非点源污染,造成土壤肥力下降、生态环境恶化等问题。首先从农田土壤磷分、植物体内磷分以及微生物生物量磷3方面介绍冻融作用对磷分转化迁移的影响;然后对冻融作用磷流失的防治提出增施有机肥、合理密植、恢复并改良植被、封育、退耕还林(草)等建议;最后,提出我国未来冻融作用对磷分转化迁移研究在土壤磷分水平、垂直方向上迁移转化机制,植物体内磷分迁移转化机制,微生物生物量磷迁移转化机制,以及冻融过程磷分流失模型方面提出研究展望。
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| 关 键 词： | 冻融作用 磷素 转化迁移 研究进展 |
Study progress on effects of freezing and thawing on phosphorus transformation and migration |
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| Li Guiyuan,Fan Haoming.Study progress on effects of freezing and thawing on phosphorus transformation and migration[J].Science of Soil and Water Conservation,2011,9(6):114-120. |
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| Authors: | Li Guiyuan Fan Haoming |
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| Affiliation: | Li Guiyuan,Fan Haoming(College of Water Conservancy,Shenyang Agriculture University,110866,Shenyang,China) |
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| Abstract: | Freezing and thawing action causes soil and water losses,so that inorganic pollutants including phosphorus are released to downstream water-body(e.g.,rivers and lakes).Non-point source pollution is likely to happen,which gives rise to some problems,such as decline of soil fertility and deterioration of ecological environment.Firstly,the effects of freezing and thawing on phosphorus transformation and migration were introduced from three aspects,phosphorus in farmland soil,phosphorus in plant body and phosph... |
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| Keywords: | effects of freezing and thawing phosphorus transformation and migration progress |
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