| 呼伦贝尔沙化草地人工固沙植物种间生态位关系研究 |
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| 引用本文： | 张金鹏,高菲,卢欣石.呼伦贝尔沙化草地人工固沙植物种间生态位关系研究[J].草地学报,2010,18(1):26-30. |
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| 作者姓名： | 张金鹏 高菲 卢欣石 |
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| 作者单位： | 北京林业大学草地资源与生态实验室,北京,100083;北京林业大学草地资源与生态实验室,北京,100083;北京林业大学草地资源与生态实验室,北京,100083 |
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| 基金项目： | 国家科技部科技基础条件平台项目(2004DEA71190);;科技支撑计划项目(2006BAD26B0403)资助 |
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| 摘 要： | 采用样方法对呼伦贝尔地区沙化草地不同恢复年限人工播种固沙区进行调查,并计算其主要植物的重要值、生态位体积及生态位重叠值,以研究呼伦贝尔沙化草地人工固沙植物群落特征及演替状况。结果表明:人工固沙植物冰草(Agropyron pectinatum(Bieb.)Beauv.)的平均生态位体积在时间尺度上,呈持续增加趋势,是改良沙化草地的优良草种;小麦(Triticum aestivumL.)与小叶锦鸡儿(Caragana microphyllaLam.)、冰草与羊柴(Hedysa-rum laeveMaxim)生态位重叠值为0.9213和0.7512,在演替过程中具较强的竞争作用。自然恢复植物与人工播种植物间,多数生态位重叠值不高。自然恢复多年生植物大针茅(Stipa grandisP.Smirn.)、糙隐子草(C1eistogenessquarrosa(Trin.)Keng)等逐渐出现,表明该地区植被群落结构向稳定共存的人工-天然植被群落结构方向发展。
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| 关 键 词： | 呼伦贝尔 人工固沙植物 生态位 |
Interspecific Niche Relationship of Artificial Sand-fixation Plants In Hulunbeir Desertification Grassland |
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| ZHANG Jin-peng,GAO Fei,LU Xin-shi.Interspecific Niche Relationship of Artificial Sand-fixation Plants In Hulunbeir Desertification Grassland[J].Acta Agrestia Sinica,2010,18(1):26-30. |
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| Authors: | ZHANG Jin-peng GAO Fei LU Xin-shi |
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| Institution: | Grassland Resource and Ecology Laboratory;Beijing Forestry University;Beijing 100083;China |
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| Abstract: | It is necessary to study on plant community condition and its succession in artificial sand-fixation plants in order to restore grassland productivity and maintain sustained and steady development of artificial vegetation community in Hulunbeir desertification grassland.The method adopted in this paper was to survey the artificial sand-fixing areas of Hulunbeir desertification grasslands with different recovery periods(1,3,4,and 5 years) and the important value,ecological volume,and niche overlap of main pl... |
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| Keywords: | Hulunbeir Artificial sand-fixation plants Niche |
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