摘要
杉木连栽与头裁土壤的研究表明，连栽引起土壤物理性状变差，土壤有机质、Ｎ、Ｐ、Ｋ养分含量下降，土壤微生物数量减少，酶活性和呼吸强度下降。经盆栽试验、连栽造林试验表明，不利于杉木连栽生长的限制因子集中在表土层，采用回心土造林技术，杉木生长量和保存率显著提高。
Study on soil properties in Chinese- fir Repeated plantation and in the first cultivation standshowed that cultivation without rotation could cause change of soil Physical properties,decrease of organicmatter N. P. K content in soil, reduction of microbe, decrease of enzyme activity and breathing intensity.Experiment on pot culture and cultivation without rotation demonstrated that limiting factors for growth ofcultivation without rotation were in the pedosphere, therefore, forestion in bed soil could increase evidentlygrowth of Chiners fir.
出处
《浙江林业科技》
北大核心
1995年第4期13-19,共7页
Journal of Zhejiang Forestry Science and Technology
基金
浙江省科委"八五"科技重点项目
关键词
杉木
连栽
土壤
回心土
造林更新
Chinese-fir Repeated plantation
soil
bed soil
