| 毛乌素沙地沙柳与柠条根系分布特征对比 |
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| 引用本文： | 张莉,吴斌,丁国栋,张宇清. 毛乌素沙地沙柳与柠条根系分布特征对比[J]. 干旱区资源与环境, 2010, 24(3) |
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| 作者姓名： | 张莉 吴斌 丁国栋 张宇清 |
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| 作者单位： | 北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室,北京100083;北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室,北京100083;北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室,北京100083;北京林业大学水土保持学院,教育部水土保持与荒漠化防治重点实验室,北京100083 |
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| 基金项目： | 国家科技支撑课题(2006BAD26B03)资助 |
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| 摘 要： | 采用土柱法对毛乌素沙地沙柳与柠条的根系进行了研究。研究表明:沙柳与柠条均为主根型植物,沙柳的水平根更为发达。三年生沙柳根系水平分布在距树基160cm范围内的土层中,距树基0～40cm范围内根系分布最多,占总根量的78.73%;柠条根系水平分布在距树基60cm范围内的土层中,占总根量的78.58%。沙柳根系垂直分布在60cm土层以上,而柠条根系垂直分布在30cm至90cm土层之间。
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| 关 键 词： | 毛乌素沙地 沙柳 柠条 根系 |
Root distribution characteristics of Salix psammophyla and Caragana Korshinskii in Mu Us sandy land |
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| ZHANG Li,WU Bin,DING Guodong,ZHANG Yuqing. Root distribution characteristics of Salix psammophyla and Caragana Korshinskii in Mu Us sandy land[J]. Journal of Arid Land Resources and Environment, 2010, 24(3) |
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| Authors: | ZHANG Li WU Bin DING Guodong ZHANG Yuqing |
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| Affiliation: | Key Laboratory of Soil and Water Conservation and Combating Desertification;Ministry of Education;College of Soil and Water Conservation;Beijing Forestry University;Beiing 100083;P.R.China |
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| Abstract: | This paper covers the researches about the root distribution characters of Salix psammophyla and Caragana Korshinskii in Mu Us sandy land.Research showed:Both Salix psammophyla and Caragana Korshinskii are taproot type plants,and Salix psammophyla has more developed lateral root.For a three-year-old Salix psammophyla,the horizontal range of root system can reach a radius of 160cm,and mainly in 40cm which can account for 78.73%;The root of Caragana Korshinskii is mainly 60cm in radius,and which account for 7... |
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| Keywords: | Mu Us sandy land Salix psammophyla Caragana Korshinskii root |
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