杉木迹地更新经营技术探讨

Inruiry into Management Techniques of Cut Over Land of Cunninghamia lanceolata

分析研究了杉木连栽人工林生长量下降，土壤物理性质变差、土壤肥力下降、微生物数量减少等杉木地力明显衰退现状，提出杉木连栽幼林施肥、营造混交林、回心土造林、萌芽更新等可持续经营技术和措施。

Studies were made on evident degradation of soil fertile such as decrease of continuous artificial Cunningha-mia lanceolata increment,of soil fertile,of microoraganisms,worsen of soil physic characters.Sustainable management techniques and measures were proposed namely application of fertilizer in young stand,mixed forest,trees backfilled with deep layer soil,regenerating by germination,etc.