| 民勤梭梭人工林天然更新的生态条件 |
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| 引用本文： | 陈芳,纪永福,张锦春,丁峰,刘有军,刘虎俊,王芳琳.民勤梭梭人工林天然更新的生态条件[J].生态学杂志,2010,29(9):1691. |
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| 作者姓名： | 陈芳 纪永福 张锦春 丁峰 刘有军 刘虎俊 王芳琳 |
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| 作者单位： | 甘肃省治沙研究所甘肃省荒漠化防治重点实验室,甘肃武威,733000 |
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| 基金项目： | 国家科技支撑计划项目，国家"十一五"科技攻关资助项目 |
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| 摘 要： | 针对民勤绿洲梭梭人工林天然更新不良现状,从群落天然更新的必要条件出发,通过对种子萌发、幼苗存活与生长所需生态条件的对比研究,对民勤梭梭人工林天然更新生态条件与限制因子进行了分析,结果表明:民勤多年(1971—2002年)平均降水量为116mm,是适宜梭梭生长的区域,但降雨的季节变化却影响到梭梭天然更新的进行;梭梭的更新与所处的立地类型关系密切,不同立地条件下梭梭人工林植株生长、母株结实状况和土壤水分都存在较大的差异,立地类型是影响梭梭人工林更新的另一影响因素。
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| 关 键 词： | 更新障碍 立地类型 梭梭人工林 民勤绿洲 |
Ecological conditions for natural regeneration of artificial Haloxylon ammodendron plantations in Minqin oasis |
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| CHEN Fang,JI Yong-fu,ZHANG Jin-chun,DING Feng,LIU You-jun,LIU Hu-jun,WANG Fang-lin.Ecological conditions for natural regeneration of artificial Haloxylon ammodendron plantations in Minqin oasis[J].Chinese Journal of Ecology,2010,29(9):1691. |
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| Authors: | CHEN Fang JI Yong-fu ZHANG Jin-chun DING Feng LIU You-jun LIU Hu-jun WANG Fang-lin |
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| Institution: | CHEN Fang,JI Yong-fu,ZHANG Jin-chun,DING Feng,LIU You-jun,LIU Hu-jun,WANG Fang-lin (Gansu Key Laboratory of Desertification Combating,Gansu Desert Control Research Institute,Wuwei 733000,Gansu,China). |
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| Abstract: | Aiming at the poor regeneration status of artificial Haloxylon ammodendron plantations in Minqin oasis and from the viewpoint of the necessary conditions for their natural regeneration,a comparative study was made on the necessary ecological conditions for the seed germination,seedling survival,and growth of H. ammodendron at different sites,with the limiting factors for the regeneration of artificial H. ammodendron plantations in the oasis analyzed. The annual mean precipitation in the oasis from 1971-2002... |
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| Keywords: | Regeneration obstacle site type artificial Haloxylon ammodendron plantation Minqin oasis |
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