摘要
2019年10月份,在浙江省衢州市龙游县溪口林场选择2012年林下套种浙江楠(Phoebe chekiangensis)、南方红豆杉(Taxus wallichiana var.mairei)的毛竹(Phyllostachys edulis)林为研究对象,选择与研究对象立地条件一致的毛竹纯林为对照,在3种林型内分别建立3块20 m×20 m标准样地,共9块样地。在标准样地内,以S型随机布置3个取样点,用环刀按照不同土层(h)0<h≤20 cm、20 cm<h≤40 cm、40 cm<h≤60 cm取其原状土,将同一样地同一土层的3份样品混合作为各样地的土壤样品。参照相关标准和方法,测定土样理化性质、土壤酶活性、土壤微生物量碳、土壤微生物量氮;应用单因素方差分析法、最小显著性检验法、主成分分析法,分析毛竹林内栽植浙江楠和南方红豆杉后林地土壤质量的变化。结果表明:与对照(毛竹纯林)相比——套种浙江楠后,毛竹林土壤含水率、总孔隙度,分别增加9.60%、4.28%;土壤密度降低5.30%;土壤pH升高0.73%,土壤酸化缓解;土壤有机质、全氮、全磷、全钾、速效氮、速效磷、速效钾质量分数,分别增加10.44%、28.12%、39.97%、11.12%、7.27%、4.47%、29.72%;土壤脲酶、蔗糖酶、蛋白酶、过氧化氢酶、酸性磷酸酶活性,分别升高12.33%、17.29%、21.47%、13.19%、22.92%;微生物量碳、微生物量氮质量分数,分别增加12.63%、12.34%。与对照(毛竹纯林)相比——套种南方红豆杉后,毛竹林土壤含水率、总孔隙度,分别增加4.65%、11.62%;土壤密度降低4.01%;土壤pH升高1.46%,土壤酸化缓解;土壤有机质、全氮、全磷、全钾、速效氮、速效磷、速效钾质量分数,分别增加6.44%、13.47%、32.17%、4.13%、16.15%、11.31%、26.71%;土壤脲酶、蔗糖酶、蛋白酶、过氧化氢酶、酸性磷酸酶活性,分别升高8.29%、19.03%、12.10%、13.15%、13.38%;微生物量碳、微生物量氮质量分数,分别增加12.12%、5.15%。综合分析土壤理化性质、酶活性、微生物特征,套种
In October 2019,mixed bamboo forest with Phoebe chekiangensis and mixed bamboo forest with Taxus wallichiana var.mairei interplanted in 2012 were selected as the research subjects in Xikou Forest Farm of Longyou County,Quzhou City,Zhejiang Province,China.The pure moso bamboo forest with the same site conditions was selected as control.Three standard plots were established in each forest type,and nine plots in total.In each plot,three sampling points were randomly arranged in S-shape.Soil samples were collected using a soil sampler at different depths,namely 0<h≤20 cm,20 cm<h≤40 cm and 40 cm<h≤60 cm.Three samples of the same soil layer in the same plot were mixed as soil samples of each plot.Soil physical and chemical properties,enzyme activities,soil microbial biomass carbon and soil microbial biomass nitrogen were analyzed according to the relevant standards and methods.Oneway analysis of variance(ANOVA),least significant difference test and principal component analysis were used to examine the change of soil quality in moso bamboo forest after planting P.chekiangensis and T.wallichiana var.mairei.Results showed that,after interplanting P.chekiangensis,soil water content and total porosity increased by 9.60%and 4.28%,respectively,compared with the control(pure moso bamboo forest),while soil bulk density decreased by 5.30%.Soil pH value increased by 0.73%and soil acidification alleviated.The contents of soil organic matter(SOM),total nitrogen(N),total phosphorus(P),total potassium(K),available N,available P and available K increased by 10.44%,28.12%,39.97%,11.12%,7.27%,4.47%and 29.72%,respectively.The activities of urease,sucrase,protease,catalase and acid phosphatase increased by 12.33%,17.29%,21.47%,13.19% and 22.92%,respectively.The contents of microbial biomass carbon(MBC)and microbial biomass nitrogen(MBN)increased by 12.63% and 12.34%,respectively.After interplanting T.wallichiana var.mairei,soil water content and total porosity increased by 4.65% and 11.62%,respectively,compared with the control,whil
作者
赵建诚
王波
杨振亚
伊理孝
林晓越
李琴
Zhao Jiancheng;Wang Bo;Yang Zhenya;Yi Lixiao;Lin Xiaoyue;Li Qin(Zhejiang Academy of Forestry,Hangzhou 310023,P.R.China;Forestry and Water Conservancy Bureau of Longyou County;Xikou Forest Farm of Longyou County)
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2022年第8期98-103,116,共7页
Journal of Northeast Forestry University
基金
浙江省重点研发计划(2020C02008)
“十三五”国家重点研发计划(2016YFD0600902)。
关键词
毛竹
浙江楠
南方红豆杉
混交造林
林地土壤质量
Phyllostachys edulis
Phoebe chekiangensis
Taxus wallichiana var.mairei
Mixed forestation
Forest soil quality
