12年生尾巨桉不炼山造林生长量及经济效益分析  

Analysis on Growth and Economic Benefit of Afforestation Without Burning for 12-years-old Eucalyptus urophylla×E.grandis

作　　者：邹顺发 ZOU Shun-fa(Huaan Jinshan State-owned Forest Farm in Fujian Province,Zhangzhou Fujian 363803,China)

机构地区：[1]福建省华安金山国有林场,福建漳州363803

出　　处：《青海农林科技》2020年第3期75-77,共3页Science and Technology of Qinghai Agriculture and Forestry

基　　金：福建省林业厅科研项目“速生丰产用材林多功能近自然经营模式研究”[闽财(农)指2010113];“桉树人工林生态采伐更新技术研究”(闽林科20098)。

摘　　要：探讨不炼山造林对尾巨桉纯林林分生长量及经济效益的影响。采用方差分析对两种林分各项指标进行对比,应用净现值法对林分经济效益进行评价。结果表明:不炼山造林相比炼山造林可以有效提高桉树林分的生长量。不炼山处理林分的树高、胸径、材积和林分蓄积量均显著大于炼山造林林分,相比炼山造林林分分别提高13.32%、13.20%、48.01%和26.02%,但不炼山造林林分保存率低于炼山林分。不炼山造林林分累计现金流量和累计净现值均略高于炼山林分,但差异不显著,即不炼山造林林分经济效益与炼山林分较为接近。This study aimed to investigate the effects of afforestation without burning for Eucalyptus urophylla×E.grandis on the growth and economic benefit.Variance analysis was used to analyse the differences of indicators from the two kinds of stands.Net present value was used to evaluate the economic benefit of stands.The results showed that technical measures of afforestation without burning effective improved the growth of eucalyptus stand in contrast to burning mountain cover for afforestation.The height,DBH,volume and stand volume of afforestation without burning were greater than the indexes of burning mountain cover for afforestation.The height,DBH,volume and stand volume of afforestation without burning increasd by 13.32%,13.20%,48.01%and 26.02%.The preservation rate of afforestation without burning was lower than the index of burning mountain cover for afforestation.The economic benefit of afforestation without burning was slightly higher than the economic benefit of afforestation without burning,however there was no significant difference between stands.

关 键 词：不炼山造林 尾巨桉 生长量 经济效益 

分 类 号：S792.39[农业科学—林木遗传育种]