首页 | 本学科首页   官方微博 | 高级检索  
     

青冈常绿阔叶林死地被层和土壤性质特征的研究
引用本文:于明坚 陈启常. 青冈常绿阔叶林死地被层和土壤性质特征的研究[J]. 林业科学, 1996, 32(2): 103-110
作者姓名:于明坚 陈启常
作者单位:杭州大学生物科学与技术系,浙江师范大学生物系,建德市农经委
基金项目:国家和浙江省自然科学基金
摘    要:1990年至今对浙江建德青冈常绿阔叶林生态系统的养分循环进行了研究。报道了死地被层现存量,死地被层(包括L、F、H三亚层)和土壤(包括A、E、B三层)中C和8种养分元素的分布,以及植物对养分元素的累积特征。结果表明:死地被层现存量为14.141t/hm2,其中H>F>L.死地被物中9种元素含量和贮量大小依次为C>N>Ca>Mn>K>Mg>P>Zn>Cu,而土壤中为C>N(K)>K(N)>Mg>Mn>Ca>P>Zn>Cu。与其它地区相比,本区土壤中Mn和N的含量较高而P和Ca较低.不同元素具有不同的层次分布和季节变化特征。自表层至深层,C、N、Ca、Mn的含量呈下降趋势;而K、Mg的含量均在表层较低,并在深层有较高的含量;而P、Cu和Zn则以H与A层的含量为最高.植物对元素的累积特征因元素和层次(种类)而异。各元素中以Ca的富集系数最高,N次之,Cu和Zn最低;一般而言,藤本、草本和下木层植物对元素的累积程度比乔木层和亚乔木层要高。

关 键 词:青冈常绿阔叶林,元素含量,元素贮量,养分元素的累积特征

STUDIES ON THE CHARACTERISTICS OF THE FOREST FLOOR ANDTHE SOIL IN THE EVERGREEN BROAD-LEAVED FOREST DOMINATED BY CYCLOBALANOPSIS GLAUCA IN ZHEJIANG,CHINA
Yu Mingjian,Chen Qichang,Li Minghong,Shi Meizhong,Cao Jianbo. STUDIES ON THE CHARACTERISTICS OF THE FOREST FLOOR ANDTHE SOIL IN THE EVERGREEN BROAD-LEAVED FOREST DOMINATED BY CYCLOBALANOPSIS GLAUCA IN ZHEJIANG,CHINA[J]. Scientia Silvae Sinicae, 1996, 32(2): 103-110
Authors:Yu Mingjian  Chen Qichang  Li Minghong  Shi Meizhong  Cao Jianbo
Abstract:Nutrient cycling in the evergreen broad-leaved forest dominated by Cyclobalanopsis glauca was studied from 1990. In this paper,the amount of the forest floor,dynamics of carbon and eight nutrient elements in the forest floor(including three sublayers:L,F,H)and the soil(including three layers:A,E,B),and accumulating characteristics of nutrients in main plants are reported. The results show that:The amount of the forest floor is 14. 141t/hm2, in which H>F>L.The order of contents and amount of elements in the forest floor is C>N>Ca>Mn>K>Mg>P>Zn>Cu, and that of the soil is C>N(K) >K(N)>Mg>Mn>Ca>P>Zn>Cu.Compared with other regions,the soil in this area have higher contents of Mn and N, and lower contents of P and Ca.Varied elements'contents having different changing regularities in various layers and seasons.The contents of C,N and Ca descend with the drop of depth.The contents of K, Mg are lower in thesurface.The contents of P,Cu and Zn are higher in H sublayer and A layer,and that of K,Mg are higher in deep layers.The accumulating characteristics of nutrients in plants are different among elements and layers(species).The accumulating degree of Ca is the highest,the second is N,and that of Cu and Zn is the lowest.In general,the accumulating degree of liana,herbs and understory plents is higher than that of trees and subtrees.
Keywords:Evergreen broad-leaved forest dominated by Cyclobalanopsisglauca  Contents of elements  Amount of elements  Accumulating characteristics of elements
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号