| 浑善达克沙地飞播区植物多样性的变化——以内蒙古正蓝旗为例 |
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| 引用本文： | 田海晨,刘果厚.浑善达克沙地飞播区植物多样性的变化——以内蒙古正蓝旗为例[J].水土保持通报,2015,35(2):269-273. |
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| 作者姓名： | 田海晨 刘果厚 |
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| 作者单位： | 内蒙古农业大学生态环境学院,内蒙古呼和浩特,010019 |
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| 基金项目： | 内蒙古自治区科技创新引导奖励资金项目“浑善达克沙地植被恢复与风沙环境综合治理关键技术集成示范”(20121607) |
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| 摘 要： | 目的]对内蒙古境内浑善达克沙地植被恢复过程中植物群落的物种组成以及多样性的变化规律进行分析,为该地区的植被恢复提供理论依据和科学指导。方法]采用样带法对植物群落进行调查。结果](1)沙地植被恢复5年后群落内共有33种植物,分属于10科27属;(2)随着恢复年限的延长,物种丰富度指数、物种多样性指数、物种均匀度指数和群落盖度均逐渐增大,而生态优势度指数则逐渐减小。植物群落物种由6种(未治理)增加到21种(治理5a),物种多样性指数由1.20增加至2.77,物种均匀度指数由0.67升高至0.91,群落盖度从2.06%增加到75.58%,生态优势度指数由0.57减少至0.32。结论]浑善达克沙地飞播区植被得到明显恢复,沙地恢复到一定阶段后群落趋于稳定,风沙化得到一定程度的遏制。
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| 关 键 词： | 浑善达克沙地 飞播 物种多样性 植被恢复 |
| 收稿时间： | 2014/3/21 0:00:00 |
| 修稿时间： | 2014/3/28 0:00:00 |
Changes of Plant Diversity After Aerial Seeding in Hunshandake Sandy Land -A Case Study in Zhenglan Banner of Inner Mongolia |
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| TIAN Haichen and LIU Guohou.Changes of Plant Diversity After Aerial Seeding in Hunshandake Sandy Land -A Case Study in Zhenglan Banner of Inner Mongolia[J].Bulletin of Soil and Water Conservation,2015,35(2):269-273. |
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| Authors: | TIAN Haichen and LIU Guohou |
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| Institution: | TIAN Haichen;LIU Guohou;College of Ecology and Environment,Inner Mongolia Agricultural University; |
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| Abstract: | Objective] To understand the variation of species composition and species diversity of plant community in Hunshandake sandy land with different recovery ages in the process of vegetation restoration, and to provide theoretical basis and scientific guidance for the vegetation restoration in the area.Methods] Plant community was investigated by transect sampling method.Results] (1) There were 33 species of 10 genera in 27 families after five years restoration; (2) Species richness, diversity, evenness and community coverage increased gradually with the increase of vegetation recovery period, while the ecological dominance index reduced yearly. After five years recovery, the species number increased from 6 to 21; The species diversity increased from 1.20 to 2.77; Species evenness raised from 0.67 to 0.91; Community coverage was improved obviously(from 2.06% to 75.58%); Ecological dominance index degraded from 0.57 to 0.32.Conclusion] Vegetation recovered obviously, plant community tended to be stable after the sandy restored to a certain stage, and the wind drifted desertification in Hunshandake sandy land was repressed to some extent. |
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| Keywords: | Hunshandake sand aerial seeding species diversity vegetation restoration |
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