| 保护性耕作对土壤养分及碳库管理指数的影响 |
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| 引用本文： | 王桂林,曹鹏,刘章勇.保护性耕作对土壤养分及碳库管理指数的影响[J].环境科学与技术,2012(8):71-73,162. |
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| 作者姓名： | 王桂林 曹鹏 刘章勇 |
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| 作者单位： | 长江大学农学院;湖北省农业技术推广总站 |
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| 基金项目： | 湖北省国际科技合作项目(2010BFA011);湖北省自然科学基金重点项目资助(2011CDA001) |
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| 摘 要： | 2008-2010年在丹江口库区坡耕地进行了保护性耕作试验,观测了不同保护性耕作措施对坡耕地土壤养分和碳库管理指数的影响。结果表明:不同保护性耕作措施在改善土壤养分和碳库管理指数上存在差异",免耕+秸秆覆盖"(NTS)在土壤全量养分和速效养分的保持上均表现出了相对较好的效果。相对于传统的坡耕地种植模式,不同保护性耕作措施可以显著改善土壤碳库管理指数,促使土壤系统向着良性方向转变,其中改善措施以"免耕+秸秆覆盖"(NTS)最为明显,相对传统耕作(T)增加了32.73%,其次为横坡垄作(CSP),最后为免耕(NT)。
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| 关 键 词： | 保护性耕作 坡耕地 土壤养分 土壤碳库管理指数 |
Influences of Conservation Tillage on Soil Nutrient and Carbonpool Management Index of Slope Farmland |
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| WANG Gui-lin,CAO Peng,LIU Zhang-yong.Influences of Conservation Tillage on Soil Nutrient and Carbonpool Management Index of Slope Farmland[J].Environmental Science and Technology,2012(8):71-73,162. |
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| Authors: | WANG Gui-lin CAO Peng LIU Zhang-yong |
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| Institution: | 1*(1.College of Agriculture,Changjiang University,Jingzhou 434025,China;2.Hubei General Station for Agricultural Technology Promotion,Wuhan 430070,China) |
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| Abstract: | An experiment of conservation tillage on slope farmland was carried out in the region of Dnajiangkou Reservoir,focusing on comparative study regarding effects of different tillage methods on soil nutrients and the carbon-pool management index(CPMI).The study showed that compared with the traditional tillage,conservation tillage,especially notillage plus straw mulching(NTS)generated remarkably good results for the soil system in presenting a benign tendency,which was followed by the cross-slope plowing(CSP)and no-tillage(NT)in this regard. |
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| Keywords: | conservation tillage slope farmland soil nutrients soil carbon management index |
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