南京城市风景林凋落物现存量及其与土壤主要物理性质的关系  

Accumulation amount of litter and relationship withsoil physical property in landscape forest in Nanjing

作　　者：周忠胜 张文豹 曾雷 王津宁 李冬林[2] Zhou Zhongsheng;Zhang Wenbao;Zeng Lei;Wang Jinning;Li Donglin(Nanjing Binjiang Park Management Limited Company,Nanjing 210019,China;Jiangsu Academy of Forestry,Nanjing 211153,China)

机构地区：[1]南京滨江公园管理有限公司,江苏南京210019 [2]江苏省林业科学研究院,江苏南京211153

出　　处：《江苏林业科技》2020年第5期22-27,共6页Journal of Jiangsu Forestry Science & Technology

基　　金：南京市建设行业科研项目“城市内河退化河岸生态修复植物优选与新型护坡材料研发”(Ks2042)。

摘　　要：对南京中国绿化博览园8种城市风景林群落凋落物现存量及其与土壤主要物理参数进行了研究,结果表明:不同风景林群落凋落物厚度、现存量之间呈现显著差异(P<0.05)。风景林凋落物厚度变化区间为2.10-5.24 cm,大小顺序依次为樟树林>乐昌含笑林>大叶女贞林>马褂木林>淡竹林>朴树林>大叶榉林>槭树林,总现存量指标也呈现类似的序列变化。不同风景林群落,以及同一风景林不同层次的土壤容重之间呈现显著差异(P<0.05)。相关性分析表明,风景林凋落物厚度、现存量与土壤容重之间相关性不显著。研究表明,城市风景林在外界多种因素的综合影响下,林下凋落物对土壤物理性质的影响作用不明显。Accumulation amount of litter and physical property of the soil beneath in eight landscape forests were studed in Nanjing,Jiangsu.Results showed that the litter thickness and storage volume had significant difference among communities(P<0.05).The litter thickness ranged from 2.10 to 5.24 cm,with thickness order as Cinnamomum camphora forest,Michelia chapensis forest,Ligustrum lucidum forest,Liriodendron chinense forest,Phyllostachys glauca forest,Celtis sinensis forest,Zelkova serrata forest,and Acer palmatum forest,and with their extant accumulation amount in the same order.There were significant differences among different forest types and different soil levels in even same forest types on bulk density(P<0.05).Analysis showed that correlation between the litter thickness,accumulation amount and the soil bulk density was not significant.So,we concluded that the effect of litter in man-made forests on soil physical properties was not obvious acted with many external factors.

关 键 词：城市风景林 凋落物 土壤 物理性质 南京 

分 类 号：S714.2[农业科学—林学] S714.455