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雄黄桂林下栽植不同灌木对林分因子和土壤理化性质的影响

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为给雄黄桂(Osmanthus fragrangs'Xionghuanggui')林下栽植适宜灌木和改善种植环境提供科学依据,以雄黄桂+红花檵木(Loropetalum chinense var.rubrum)(Ⅰ)、雄黄桂+山茶(Camellia japonica)(Ⅱ)、雄黄桂+红枫(Acer palmatum'Atropur-pureum')(Ⅲ)和雄黄桂+金边黄杨(Euonymus japonicus'Aurea-marginatus')(Ⅳ)为研究对象,分析雄黄桂林下栽植不同灌木对雄黄桂林分因子和土壤理化性质的影响.结果表明,林分Ⅲ的雄黄桂平均胸径、平均树高、平均枝下高、平均冠幅、平均郁闭度和平均林分密度均最大.林分Ⅲ的土壤有机质、全钾、速效钾、全磷和全氮含量及含水率和pH值均最高,土壤容重最小.雄黄桂林下栽植红枫对土壤理化性质影响最大,更有利于雄黄桂生长.栽培后,应注意氮、磷和钾肥的施用,添加有机质,促进雄黄桂林健康生长.
Effects of Planting Different Shrubs under Osmanthus fragrangs 'Xionghuanggui' on Stand Factors and Soil Physical and Chemical Properties
In order to provide scientific basis for planting suitable shrubs under Osmanthus fragrangs'Xiong-huanggui'and improving planting environment,taking O.fragrangs'Xionghuanggui'+Loropetalum chinense var.rubrum(Ⅰ),O.fragrangs'Xionghuanggui'+Camellia japonica(Ⅱ),O.fragrangs'Xionghuanggui'+Acer palma-tum'Atropurpureum'(Ⅲ)and O.fragrangs'Xionghuanggui'+Euonymus japonicus'Aurea-marginatus'(Ⅳ)as re-search objects,effects of planting different shrubs under O.fragrangs'Xionghuanggui'on stand factors of O.fra-grangs'Xionghuanggui'and soil physical and chemical properties were analyzed.Results showed that average DBH,average tree height,average clear bole height,average crown width,average canopy density and average stand density in standⅢwere the highest.Contents of soil organic matter,total potassium,available potassium,total phosphorus and total nitrogen as well as moisture content and pH in stand Ⅲwere the highest.Soil bulk density in standⅢwas the lowest.Planting A.palmatum'Atropurpureum'under O.fragrangs'Xionghuanggui'had the largest effect on soil physical and chemical properties and was more beneficial to growth of O.fragrangs'Xionghuanggui'.After cultivation,attention should be paid to application of nitrogen,phosphorus and potassi-um fertilizers and addition of organic matter to improve healthy growth of O.fragrangs'Xionghuanggui'.

stand factorsoil physical and chemical propertiesshrubOsmanthus fragrangs'Xionghuanggui'

陈辉琴、唐岚、白一术、姜永泽、郝建锋、齐锦秋

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四川农业大学林学院 水土保持与荒漠化防治重点实验室,四川成都 611130

四川农业大学林学院木材工业与家具工程重点实验室,四川成都 611130

林分因子 土壤理化性质 灌木 雄黄桂

四川省科技厅重点研发项目国家自然科学基金项目

2021YFN006731370628

2024

广西林业科学
广西壮族自治区林业科学研究院

广西林业科学

CSTPCD
影响因子:0.59
ISSN:1006-1126
年,卷(期):2024.53(4)