民勤绿洲人工梭梭林群落结构及种群生态特征

Abstract

Abstract: The important values and the ShannonWiener indexes were analyzed based on carrying out a field investigation on sample plots of planted [WTBX]Haloxylon ammodendron[WTBZ] communities in different sandy habitats in Minqin Oasis.The planted [WTBX]H.ammodendron[WTBZ] communities were classified into three types,i.e.,the [WTBX]H.ammodendron[WTBZ] (annual herbage) community,[WTBX]H.ammodendron[WTBZ] (annual herbage with shrubs) community and [WTBX]H.ammodendron[WTBZ]shrub community,and these communities were distributed on mobile sand dune,semifixed sand dune and fixed sand dune respectively.With the increase of sandfixed degree,the community succession was ranked from [WTBX]H.ammodendron[WTBZ] community (annual herbage,pioneer community with a coverage of 23% and ShannonWiener index of 0.26) to [WTBX]H.ammodendron[WTBZ] (annual herbage with shrubs with a coverage of 30% and ShannonWiener index of 0.34),and then to [WTBX]H.ammodendron[WTBZ]shrub community (with a coverage of 40% and ShannonWiener index of 0.60).In the succession,the growth of planted [WTBX]H.ammodendron[WTBZ] populations in different habitats was different,a recession of planted [WTBX]H.ammodendron[WTBZ] populations occurred from mobile sand dune to semifixed sand dune and then to fixed sand dune,and such recession was related to soil moisture content.

Key words: font-size: 10.5pt, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, Oasis')">mso-bidi-language: AR-SA" lang="EN-US">Oasis, planted font-size: 10.5pt, mso-bidi-font-family: MingLiU_HKSCS, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-hansi-font-family: MingLiU_HKSCS, mso-ascii-font-family: MingLiU_HKSCS">font-size: 10.5pt, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, Haloxylon ammodendronmso-bidi-language: AR-SA" lang="EN-US">Haloxylon ammodendronfont-size: 10.5pt, mso-bidi-font-family: MingLiU_HKSCS, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-hansi-font-family: MingLiU_HKSCS, mso-ascii-font-family: MingLiU_HKSCS">font-size: 10.5pt, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, forest')">mso-bidi-language: AR-SA" lang="EN-US"> forest, community structure, population features, Minqin

LIU You-jun , LIU Shi-zeng , JI Yong-fu , ZHANG Jing-chun , CHEN Fang , WANG Fang-lin. Community Structure and Population Ecological Features of Planted Haloxylon ammodendron in Different Habitats in Minqin Oasis[J]., 2014, 31(1): 94-99.

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Community Structure and Population Ecological Features of Planted Haloxylon ammodendron in Different Habitats in Minqin Oasis

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