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草业科学  2014 

天然红松林植被多样性与土壤功能多样性的关系

DOI: 10.11829\j.issn.1001-0629.2014-0095, PP. 1241-1247

Keywords: 天然红松林,植被多样性,土壤功能多样性,土壤酶活性

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Abstract:

?以黑龙江省伊春市带岭区小兴安岭天然红松林(Pinuskoraiensis)为研究对象,于2013年采用典型抽样法及生态群落学调查法对林内植被多样性进行研究,采用常规方法对林内土壤理化性质及酶活性进行测定,以期揭示天然红松林植被多样性与土壤功能多样性的关系。结果表明,植被多样性指数、土壤理化性质、土壤酶活性、土壤功能多样性之间存在相关关系,其中,乔木植被物种丰富度S指数与磷酸酶呈极显著负相关(P<0.01),与纤维素酶呈极显著正相关,群落均匀度指数(Jsw)与β-糖苷酶呈显著正相关(P<0.05);灌木植被S指数与纤维素酶和脲酶呈显著正相关,物种多样性H′指数与纤维素酶呈显著正相关;草本植被S指数与β-糖苷酶呈极显著正相关,与磷酸酶呈显著负相关。土壤功能多样性H指数与乔木、灌木植被S指数和乔木植被H′指数显著正相关,与草本植被S指数、H′指数呈极显著正相关。由此表明,天然红松林植被多样性通过影响土壤酶活性进而影响土壤功能多样性,并且二者之间存在显著相关关系。

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