| 三峡库区消落带香根草水土保持功能研究 |
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| 引用本文： | 王轶浩,耿养会,李彬,彭秀,谭名照. 三峡库区消落带香根草水土保持功能研究[J]. 四川林业科技, 2010, 31(2): 68-71 |
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| 作者姓名： | 王轶浩 耿养会 李彬 彭秀 谭名照 |
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| 作者单位： | 重庆市林业科学研究院,重庆,400036 |
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| 基金项目： | 重庆市科技攻关项目，重庆市三峡库区森林生态保护与恢复市级重点实验室联合资助 |
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| 摘 要： | 三峡库区消落带水土流失是制约库区可持续发展的重要生态问题,通过试验小区对库区消落带香根草水土保持效应进行研究,结果表明:1)栽植有香根草的试验小区土壤物理性质要好于裸地,而2 a生香根草试验小区的土壤涵养水源功能要好于1 a生香根草;2)裸地存在严重的水土流失,土壤流失量为0.3383 t,随着植被覆盖的增加,土壤侵蚀深度和土壤侵蚀量都有显著的下降;3)2 a生香根草过滤、沉积土壤流失量0.1986 t;4)香根草具有较强的固土能力,2 a生单株香根草固土量为3.12 kg,其固土量与地下生物量关系可用Y(固土量)=-23.139X2+25.85X-3.1344方程拟合。
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| 关 键 词： | 三峡库区 消落带 香根草 水土保持 |
Researches on the Function of Soil and Water Conservation of Vetiveria zizanioides in the Hydro-fluctuation Belt of the Three Gorges Reservoir Area |
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| WANG Yi-hao,GENG Yang-hui,LI Bin,PENG Xiu,TAN Ming-zhao. Researches on the Function of Soil and Water Conservation of Vetiveria zizanioides in the Hydro-fluctuation Belt of the Three Gorges Reservoir Area[J]. Journal of Sichuan Forestry Science and Technology, 2010, 31(2): 68-71 |
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| Authors: | WANG Yi-hao GENG Yang-hui LI Bin PENG Xiu TAN Ming-zhao |
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| Affiliation: | WANG Yi-hao GENG Yang-hui LI Bin PENG Xiu TAN Ming-zhao(Chongqing Academy of Forestry,Chongqing 400036) |
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| Abstract: | Soil and water loss of the hydro-fluctuation belt is an important ecological problem of restricting the sustainable development in the Three Gorges Reservoir Area.Studies were made of the function of soil and water conservation of Vetiveria zizanioides through the method of test plots.The results have shown that: 1) the soil physical properties of Vetiveria zizanioides in the test plots are better than those in the bare test plot.The water conservation function of the test plot of two-year-old Vetiveria ziz... |
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| Keywords: | Three Gorges Reservoir Area Hydro-fluctuation belt Vetiveria zizanioiaes(L.) Nash Soil and water conservation |
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