不同杉木混交模式对杉木育林及土壤养分的影响试验  

Effects of Different Mixed Patterns of Cunninghamia lanceolata on Forest Cultivation and Soil Nutrients

作　　者：莫素花 Mo Suhua(Beijiang River Forest Farm of Rongshui Miao Autonomous County,Rongshui 545300,Guangxi Zhuang Autonomous Region,)

机构地区：[1]融水苗族自治县国营贝江河林场,广西壮族自治区融水545300

出　　处：《农业技术与装备》2024年第7期147-149,共3页Agricultural Technology & Equipment

摘　　要：以纯林杉木为对照,设定杉木与米老排、杉木与马尾松、杉木与火力楠3种混交方式,探讨混交对杉木生长及土壤养分的影响。结果表明,混交林能明显提高杉木的平均胸径、树高和冠幅,其中杉木与火力楠混交林生长最好。混交后土壤有机质、速效N、速效P、速效K含量明显提高,土壤水分、气孔导度明显增大,密度减小,可对土壤有明显的改良作用,尤其是杉木与火力楠混交下,土壤理化性状的改良效果最好。In order to study the effects of mixing between Cunninghamia lanceolata and Mytilaria laosensis,Cunninghamia lanceolata and Pinus massoniana,and Cunninghamia lanceolata and Michelia macclurei on the growth and soil nutrients of Cunninghamia lanceolata in pure forest.By measuring the growth,soil nutrients and physical properties of Cunninghamia lanceolata,it was found that the average DBH,tree height and crown width of Cunninghamia lanceolata were significantly increased in mixed forest,and the mixed forest of Cunninghamia lanceolata and Michelia macclurei was the best.The contents of soil organic matter,available N,available P and available K were significantly increased,the soil moisture and stomatal conductibility were significantly increased,and the soil density was decreased,which could significantly improve the soil,especially the soil physical and chemical properties were the best improved under the mixed mixture of Cunninghamia lanceolata and Michelia macclurei.

关 键 词：杉木混交 土壤养分 土壤物理性状 

分 类 号：S791.27[农业科学—林木遗传育种]