摘要
为杉木林资源的保护、利用及苗木培育提供科学依据,利用第8次国家森林资源连续清查贵州省第6次复查(2010年)数据资料,采用一元材积表法对128个中龄期杉木人工林固定样地蓄积量进行计算,通过T检验、多重比较、通径分析及回归分析等,研究海拔及土壤环境对中龄期杉木蓄积量的影响。结果表明:中心区杉木蓄积量与海拔呈线性负相关,海拔对其产生的影响>腐殖质层,土壤厚度、枯枝落叶层无明显影响;一般区杉木蓄积量与枯枝落叶层呈线性负相关,枯枝落叶层对其产生的影响>土壤厚度,海拔、腐殖质层无明显影响;而全省杉木区的影响因子依次为海拔>土壤厚度>腐殖质层,枯枝落叶层无明显影响。
The C.lanceolata stand volume of 128 artificial permanent sample plots was calculated by one-way volume table according to the data from Guizhou Sixth FRCI（Forest Resource Continuous Investigation）in 2010 and the effect of altitude and soil environment on C.lanceolata stand volume was studied by T test,multiple range test,path analysis and regression analysis to provide the scientific basis for protection and utilization of C.lanceolataresources and seedling cultivation.Results：There is a linear negative correlation between C.lanceolatastand volume and altitude in central areas.The effect of altitude on C.lanceolatastand volume is more than humus layer,and soil depth and litter layer have no significant effect on C.lanceolata stand volume.There is a linear negative correlation between C.lanceolata stand volume and litter layer in common areas.The effect of litter layer on C.lanceolatastand volume is higher than soil depth and altitude and humus layer have no significant effect on C.lanceolatastand volume.The factors of influencing C.lanceolatastand volume is altitude〉soil depth 〉humus layer and the litter layer has no significant effect on C.lanceolatastand volume in Guizhou.
出处
《贵州农业科学》
CAS
2015年第9期207-211,215,共6页
Guizhou Agricultural Sciences
基金
国家十二五科技支撑计划项目"西南和热带森林可持续经营技术研究与示范"(2012BAD22BO1)
贵州省林业调查规划院森林生态监测评估院士工作站项目[黔科合院士站(2013)4004]
贵州省森林资源监测与评价科技创新人才团队项目[黔科合人才团队(2013)4007]
关键词
森林资源
杉木蓄积量
海拔
土壤环境
贵州
forest resources
Cunningghamia lanceolata
stand volume
altitude
soil environment
Guizhou
