内蒙古林业科技
內矇古林業科技
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INNER MONGOLIA FORESTRY SCIENCE AND TECHNOLOGY
2012年
2期
5-10
,共6页
付彩虹%李钢铁%胡小龙%余伟莅
付綵虹%李鋼鐵%鬍小龍%餘偉蒞
부채홍%리강철%호소룡%여위리
沙地云杉%混交林%物种多样性%多伦县
沙地雲杉%混交林%物種多樣性%多倫縣
사지운삼%혼교림%물충다양성%다륜현
Picea mongolia%mixed forest%species diversity%Duolun County
以多伦县沙地云杉林3条样带的群落调查数据为基础,研究了沙地云杉混交林的物种组成结构,分析了3个典型群落乔木层、灌木层、草本层的物种多样性。结果表明:沙地云杉混交林植物种类丰富,乔木层、灌木层、草本层共有植物71种,群落垂直结构分层明显;多伦县沙地云杉与白桦混交林物种多样性较丰富,在群落梯度上,群落Ⅰ为52种,群落Ⅱ为45种,群落Ⅲ为47种,物种丰富度指数大小顺序为群落Ⅰ〉群落Ⅲ〉群落Ⅱ;群落的物种多样性指数变化规律大致相同,均为草本层〉灌木层〉乔木层;3个典型群落的物种均匀度指数变化规律基本一致,为乔木层最大,灌木层其次,草本层最小。通过对多伦县沙地云杉混交林物种多样性的研究,为加强沙地云杉生物多样性的保护和经营管理提供理论依据。
以多倫縣沙地雲杉林3條樣帶的群落調查數據為基礎,研究瞭沙地雲杉混交林的物種組成結構,分析瞭3箇典型群落喬木層、灌木層、草本層的物種多樣性。結果錶明:沙地雲杉混交林植物種類豐富,喬木層、灌木層、草本層共有植物71種,群落垂直結構分層明顯;多倫縣沙地雲杉與白樺混交林物種多樣性較豐富,在群落梯度上,群落Ⅰ為52種,群落Ⅱ為45種,群落Ⅲ為47種,物種豐富度指數大小順序為群落Ⅰ〉群落Ⅲ〉群落Ⅱ;群落的物種多樣性指數變化規律大緻相同,均為草本層〉灌木層〉喬木層;3箇典型群落的物種均勻度指數變化規律基本一緻,為喬木層最大,灌木層其次,草本層最小。通過對多倫縣沙地雲杉混交林物種多樣性的研究,為加彊沙地雲杉生物多樣性的保護和經營管理提供理論依據。
이다륜현사지운삼림3조양대적군락조사수거위기출,연구료사지운삼혼교림적물충조성결구,분석료3개전형군락교목층、관목층、초본층적물충다양성。결과표명:사지운삼혼교림식물충류봉부,교목층、관목층、초본층공유식물71충,군락수직결구분층명현;다륜현사지운삼여백화혼교림물충다양성교봉부,재군락제도상,군락Ⅰ위52충,군락Ⅱ위45충,군락Ⅲ위47충,물충봉부도지수대소순서위군락Ⅰ〉군락Ⅲ〉군락Ⅱ;군락적물충다양성지수변화규률대치상동,균위초본층〉관목층〉교목층;3개전형군락적물충균균도지수변화규률기본일치,위교목층최대,관목층기차,초본층최소。통과대다륜현사지운삼혼교림물충다양성적연구,위가강사지운삼생물다양성적보호화경영관리제공이론의거。
Based on the community survey data of three standards sites in Duolun County, the species composition has been studied, and the species diversity of the three typical communities of Picea mongolia mixed forest has been analyzed and compared. The results show that the plant species of Picea mongolia mixed forest is very rich in Dualun County, which there are 71 kinds of plants in tree layer, shrub layer and herbaceous layer, and the community vertical stratification structure is obvious. The species diversity of mixed forest of Picea mongolia and Betula platyphylla in Duolun County is rich, for the gradient in the community, the community I is 52 species, community II is 45 species and community III is 47 species. The order of species richness index is community I 〉 community III〉 community II. The changing law of species richness index in the community is roughly ceous layer 〉 shrub layer 〉 tree layer. The changing law of species evenness index of three same, that is herbatypical community is roughly same, that is tree layer 〉 shrub layer 〉 herbaceous layer. The study on the species diversity of Picea mongolia mixed forest in Duolun County can provide the theoretical basis for strengthening the protection and management of the biodiversity of Picea mongolia.