不同林龄对宝天曼自然保护区锐齿栎林土壤物理性质及其水源涵养功能差异性的影响  

Influence of different age on soil physical properties and water conservation of Quercus aliena var. Acuteserrata forest in Baotianman Nature Reserve

作　　者：郭建荣[1] 庄静静[1] 朱学灵 叶永忠[1] 

机构地区：[1]河南农业大学,河南郑州450002 [2]宝天曼自然保护区管理局,河南内乡474350

出　　处：《河南农业大学学报》2012年第5期549-552,576,共5页Journal of Henan Agricultural University

基　　金："十一五"科技支撑计划项目(2008BADB0BO301);国家科技支撑计划项目(2008BAC39802)

摘　　要：为了探讨不同林龄锐齿栎林分土壤物理性质及水源涵养功能差异,在宝天曼自然保护区开展了相关研究.结果表明,不同林龄土壤各层容重大小顺序均为成熟林>幼龄林>中龄林;对于最大持水量、毛管持水量、最小持水量、总孔隙度、非毛管孔隙度,各层土壤大小顺序均为中龄林>幼龄林>成熟林,不同林龄上述指标随土壤加深均是逐渐减小;不同林龄锐齿栎森林水源涵养功能物质量从大到小分别为:中龄林,17.82×105t.hm-2;幼龄林,15.75×105t.hm-2;成熟林,14.47×105t.hm-2.In order to investigate difference of soil physical properties and water conservation quercus aliena vat. Acuteserrata of different age,studies were conducted in Baotianman Nature Reserve. The re-suits show： the order of volume weight of different age forest soil from each layer was： mature forest 〉 young forest 〉 middle-aged group forest; for maximum moisture capacity, capillary moisture capacity, minimum water-holding capacity, total porosity, non-capillary prosity, the order was： middle-aged for- est 〉 young forest 〉 mature forest, for the three age groups of forest, indexes mentioned above all de-clined with the deepening of soil; the amount and order of water conservation of quercus aliena var. Acuteserrata forest of different age was middle-aged forest, 17.82×10^5t·hm^-2, young ：forest, 15.75×10^5t·hm^-2, mature forest, 14.47×10^5t·hm^-2.

关 键 词：锐齿栎 土壤 物理性质 水源涵养量 

分 类 号：S715[农业科学—林学]