长岭杉木人工林生态系统叶面积指数及净生产量的研究

STUDIES ON THE LEAF AREA INDEXES AND PURE PRODUCTS OF THE ARTIFICIAI CUNNINGHAMIA LANCEOLATA FOREST SYSTEMS IN CHANGLING

本文是自1983年以来在南昌湾里区长岭万亩杉木人工林基地进行杉木人工林生态系统定位观测研究的内容之一。根据定位观测所搜集的资料,对不同立地条件下杉木人工林生态系统的叶面积指数及净生产量进行较为全面的分析研究。文中简要介绍了森林叶面积指数和净生产量的测定方法,探讨了不同立地条件下杉木人工林的叶面积指数和净生产量的变化规律、叶面积指数与净生产量的相互关系等。为进一步研究人工林生态系统结构和如何创建稳产高产的杉木人工林提供了科学依据。

This is one of the researches on the fixed-position observation on theartificial Cunninghamia Lanceolata forest ecosystems in the artificial Cun-ninghamia Lanceolata forest base in Changling,Wanli,Nanchang.Accord-ing to the results of the fixed-position observation,the leaf area indexesand pure products of artificial Cunninghamia lanceolata forest systemsunder different site conditions have been comprehensively analysed andstudied.In this paper,the means for the measurement of the leaf areaindexes and the pure products of forest systems under different site con-ditions are presented,the changing laws of the leaf indexes and pure pro-ducts and the relationship between them are approached to.Thus the sci-entific basis for studying the structure of artificial forest ecosystems andfor the establishment of artificial Cunninghamia Lanceolata forests withsteady and high product is offered.