连栽土壤对杉木幼苗生长影响的研究  

Effects of Replant Soil on the Growth of C. lanceolata Seedlings.

作　　者：马越强[1] 廖利平[1] 杨跃军[1] 汪思龙[1] 高洪[1] 陈楚莹[1] 刘更有[2] 

机构地区：[1]中国科学院沈阳应用生态研究所 [2]湖南省会同县林科所

出　　处：《生态学杂志》1997年第6期12-16,共5页Chinese Journal of Ecology

摘　　要：连栽土壤对杉木幼苗生长影响的研究马越强廖利平杨跃军汪思龙高洪陈楚莹（中国科学院沈阳应用生态研究所，１１００１５）刘更有（湖南省会同县林科所，４１８３０７）ＥｆｅｃｔｓｏｆＲｅｐｌａｎｔＳｏｉｌｏｎｔｈｅＧｒｏｗｔｈｏｆＣ．ｌａｎｃｅｏｌａｔａＳｅｄｌ...Effects of water extracts of soil collected from replant woodlands of C.lanceolata (first rotation, second rotation) and mixed plantation soil of C.lanceolata and Michelia on the growth of C.lanceolata seedlings were studied. The results indicated that some allelopatic substances existed in replant soil of C.lanceolata. Extracts of replant soil significantly inhibited the growth of C.lanceolata seedlings,and reduced chlorophyll contents, length, numbers and weight per cm of new branches(p<0.05). The residues of decomposed root might be one of the possible resources of allelopatic substances in replant soil. The mixed plantation of C.lanceolata and Michelia could reduce the toxicity of allelopatic substances on the growth of the C.lanceolata seedlings.

关 键 词：杉木 幼苗生长 土壤 

分 类 号：S791.270.2[农业科学—林木遗传育种]