| 黄土丘陵沟壑区封禁流域立地因子对植物群落特征的影响 |
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| 引用本文： | 刘中奇,朱清科,王晶,邝高明,赵荟.黄土丘陵沟壑区封禁流域立地因子对植物群落特征的影响[J].安徽农业科学,2011(13):8019-8022. |
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| 作者姓名： | 刘中奇 朱清科 王晶 邝高明 赵荟 |
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| 作者单位： | 内蒙古民族大学;北京林业大学水土保持与荒漠化防治教育部重点实验室; |
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| 基金项目： | “十一五”林业科技支撑计划专题(2006BAD03A0302) |
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| 摘 要： | 目的]研究黄土丘陵沟壑区封禁流域立地因子对植物群落特征的影响。方法]通过对陕西吴起县内封禁流域进行植被调查,研究了不同立地类型内植被群落特征和物种多样性的差异。结果]调查区域内植被群落以旱生草本植物为主,物种组成相对单一,结构简单。地带性植被类型为铁杆蒿（Artemisia sacrorum）＋茭蒿（Artemisia giraldii）群落;植物多样性在不同地貌部位表现为梁顶〉沟底〉梁坡〉沟坡,在不同坡向表现为半阴坡〉阴坡〉半阳坡〉阳坡;阳坡多样性指数随坡度的增加表现为＂S＂形变化趋势,37°左右达到最大值。结论]为黄土丘陵沟壑区的植物恢复提供了理论依据。
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| 关 键 词： | 物种多样性 植被恢复 地貌部位 坡向 坡度 |
Effect of Site Factor on Plant Community Characteristics in Closed Watershed in Loess Hill and Gully Region |
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| LIU Zhong-qi et al.Effect of Site Factor on Plant Community Characteristics in Closed Watershed in Loess Hill and Gully Region[J].Journal of Anhui Agricultural Sciences,2011(13):8019-8022. |
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| Authors: | LIU Zhong-qi |
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| Institution: | LIU Zhong-qi et al(Inner Mongolia University for Nationalities,Tongliao,Inner Mongolia 028042) |
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| Abstract: | Objective] The effect of site factor on plant community characteristic in closed watershed in loess hilly and gully region was studied.Method] Based on the investigation of vegetation in the closed watershed of Wuqi County in Shaanxi Province,the difference of plant community characteristic and species diversity under various site types was researched in our paper.Result] In the investigation area,xerophytic herb was the main community,with sole species composition and simple community structure.Zonal ve... |
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| Keywords: | Species diversity Vegetative restoration Landform position Slope aspect Gradient |
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