福建柏与木荷混交造林技术探讨

A Study of Technology for Mixed Plantation of Fokienia hodginsii and Schima supeaba

以福建柏、木荷纯林为对照,对福建柏木荷混交林的经营密度和混交比例进行试验分析。研究结果表明:福建柏木荷混交造林是一种较好的混交组合。从经营密度分析10 a生混交林中福建柏平均胸径生长量从大到小依次表现为B>A>C,造林密度2 500株.hm-2有利于福建柏胸径生长;从平均树高生长量分析,混交林中福建柏从大到小依次顺序为A>B>C。从混交比例分析福建柏的平均树高从大到小依次为B8M1>B2M1>B1M1>B1MO,无论是何种的混交比例,混交林中福建柏的平均树高、平均胸径均大于福建柏纯林。福建柏林分蓄积B8M1与B1M1比差异达到极显著,B8M1与B2M1、B1MO比达到显著差异水平,B2M1、B1MO与B1M1 B0M1比达到显著差异水平。福建柏木荷混交对福建柏林分蓄积有积极作用,以B8M1为好。福建柏木荷混交8∶1插花混交、2∶1带状混交是可以推广的福建柏木荷混交组合。

In this paper, taking Fokienia hodginsii and Schima supeaba pure forests as a control, mental analysis is made of the mixed density and ratio of Fokienia forest. The results have shown that mixed Fokienia mixed combination. Analysis from the operating density B 〉 A 〉 experi- mixed Schima supeaba plantation is a better C, afforestation density of 2 500 trees per hectare is favourable to Fokienia hodginsii DBH growth;in lO-year-old mixed forest from an average tree height growth analysis, Fokienia hodginsii displays a decreasing order of A 〉 B 〉 C. Fokienia hodgin- sii average height sequence from the mixed ratio analysis is B8M1 〉 B2M1 〉 B1M1 〉 B1MO. It is indi- cated that average tree height and average DBH of Fokienia hoginsii in mixed forest are greater than those in Fokienia hodginsii pure forest.