摘要
从土壤物质、化学和生物因子等方面出发，建立了土壤和综合评价指标体系，并利用多元统计方法，对浙江天植物群落次生演替过程土壤肥力的变化特征进行综合评价。结果表明，裸地、藻丛、马尾松林、马尾松木荷林、木荷 林、栲树木荷林和栲树林的土壤肥力综合指标值分别为０．０４８、０．３２４、０．４７４、０．５１４、０．６５７、０．９０５和０．９２４。可见，随着进展演替，土壤肥力呈增长趋势，并且由于群落类型。
A comprehensive evaluation index system for soil fertility based on soil physical,chemical and biological properties were developed.With the system,we than evaluated the soil integrated fertility of the succession series of the plant communities in Tiantong,Ningbo,Zhejiang Province.The values of soil integrated fertility index of bare land,shrub forest,Pinus massoniana,P massoniana+Schima superba,S.superba, Castanopsis fagasii+S.superba and C.fagasii forest were 0048、0324、0474、0514、0607、0905 and 0924, respectively.It implied that the soil fertility increased as succession proceeded,which also exhibited the gradual and sharp increment characteristics according to the community types,in particular the dominant species.On the other hand,the variation of soil fertility also influenced the adaptation of species to the environment and competition among species. As the result,they promoted the succession course.It proved again that soil fertility was an important factor which impel the plant succession course.
出处
《生态学报》
CAS
CSCD
北大核心
1999年第2期174-178,共5页
Acta Ecologica Sinica
基金
国家自然科学基金
关键词
次生演替
土壤肥力
天童
植物群落
midsubtropical evergreen broadleaved forest,secondary succession,soil fertility,comprehensive evaluation,multivariate analysis.
