大岗山不同海拔毛竹林土壤肥力的灰色关联度分析  

Grey relation analysis of soil fertility of moso bamboo forests at different altitudes in Dagang Mountain

作　　者：薛沛沛[1,2] 王兵[3] 牛香[3] 

机构地区：[1]北京林业大学林学院,北京100083 [2]重庆市林业科学研究院重庆武陵山森林生态站,重庆400036 [3]中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态环境重点实验室,北京100091

出　　处：《浙江农业学报》2013年第6期1354-1359,共6页Acta Agriculturae Zhejiangensis

基　　金：科技部林业公益性行业科研专项项目“森林生态服务功能分布式定位观测与模型”(2012041112);国家973计划项目“天然森林和草地土壤碳储量及时空格局”(2011CB403201)

摘　　要：为了确定不同海拔毛竹林的土壤肥力状况,选择土壤理化性质、微生物性质和酶活性作为土壤肥力评价因子,运用灰色关联度分析方法定量分析毛竹林的土壤肥力,并进行综合排序。结果表明:5个海拔毛竹林土壤肥力关联度的大小依次为700 m>600 m>500 m>400 m>300 m。关联度与土壤化学性质、真菌和放线菌数量以及土壤淀粉酶、β-葡糖苷酶和多酚氧化酶呈正向相关关系。因此,土壤化学性质与土壤酶活性可以作为土壤肥力快速评价指标。In order to determine the soil fertility of Moso bamboo forests at different altitudes in Dagang Mountain , soil physical and chemical properties , microbial properties and enzymatic activities were chosen as assessment indicators . Soil fertility was analyzed quantitatively by grey relational analysis , and ranked by correlation degrees comprehensively . The results showed that the order of soil fertility in Moso bamboo forests at different altitudes was 700 m〉600 m〉500 m〉400 m〉300 m.Correlation degree had a positive correlation with soil chemical properties , the number of bacteri-um, actinomycetes , activities of amylase ,β-glucosidase and polyphenol oxidase .Consequently , we concluded that soil chemical properties and soil enzymatic activities can be used as indicators for assessing soil fertility rapidly .

关 键 词：毛竹 土壤肥力 灰色关联度分析 江西大岗山 

分 类 号：S727.15[农业科学—林木遗传育种]