不同垦复时间毛竹林土壤性质变化特征研究  

Soil Properties of Different Phyllostachys pubescens Forests with Soil Reclamation

作　　者：刘广路[1] 范少辉[1] 漆良华[1] 杜满义[1] 肖复明[2] 

机构地区：[1]国际竹藤网络中心,竹藤科学与技术重点实验室,北京100102 [2]江西省林业科学院,江西南昌330032

出　　处：《江西农业大学学报》2011年第1期68-75,共8页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家“十一五”科技支撑(2006BAD19B0104、2006BAD19B0302);国际竹藤网络中心重点业务专项(1632010005)

摘　　要：应用典型样地调查及实验室分析相结合的方法,以江西省安福县不同垦复时间的毛竹林为研究对象,对未垦复、垦复3年、垦复10年的毛竹林土壤理化性质特征进行研究,并应用土壤综合指数(IFI)法对不同垦复时间毛竹林土壤综合肥力进行了评价。结果表明:垦复可以改善毛竹林地土壤物理性质,尤其是表土层土壤的物理性质。垦复极显著的降低了0～20 cm土壤容重,提高了土壤非毛管孔隙度。垦复降低了土壤的活性酸度,可以减缓土壤养分元素的流失;提高了有机质、全氮、全磷、有效氮、速效磷的含量,增加了土壤养分供给能力,为毛竹林的立地生产力维持提供了重要保障。不同垦复时间毛竹林土壤肥力综合评价指数的排列大小顺序为垦复10年0.463 5、垦复5年0.418 4、未垦复毛竹林地土壤0.354 8,垦复对土壤具有明显的改良效果。The soil properties of Phyllostachys pubescens forests with different time of soil reclamation were studied by method of typical field survey combined with laboratory analysis in Anfu County,Jiangxi Province.The comprehensive properties of soil were evaluated by method of IFI.The results showed that reclamation improved the soil physical properties,especially the physical properties of the surface layer.The bulk density of 0-20 cm soil layer decreased significantly,and the non-capillary porosity increased significantly.The value of pH increased with reclamation time,and the content of organic matters,total nitrogen,total phosphors,available nitrogen,available phosphors were increased by the soil reclamation.Soil reclamation in bamboo forest may be a better measure to maintain the productivity of bamboo forest.The comprehensive evaluation scores of soil increased with the reclamation time.The IFI of soil was 0.463 5 in the forest with 10 years＇ reclamation,was 0.418 3 in the forest with 5 years＇ reclamation,and was 0.354 8 in the forest without reclamation.The measure of reclamation can improve the properties.

关 键 词：毛竹林 土壤理化性质 垦复时间 土壤综合得分 

分 类 号：S714.7[农业科学—林学]