文献类型：期刊文献

中文题名：不同整地方式造林尾叶桉生长量及经济效益分析

英文题名：DIFFERENT SITE PREPARATION AND THEIR EFFECTS ON YIELD AND ECONOMIC BENEFIT OF EUCALYPTUS UROPHYLLA PLANTATION

作者：徐建民[1] 陆钊华[1] 白嘉雨[1] 王海勇[1]

第一作者：徐建民

机构：[1]中国林业科学研究院热带林业研究所

年份：2001

卷号：17

期号：1

起止页码：1-5

中文期刊名：广东林业科技

外文期刊名：Forestry Science and Technology

基金：世界银行贷款NAP和FRDPP项目!"桉树速生丰产林培育技术的研究与推广"课题内容。

语种：中文

中文关键词：尾叶桉;整地方式;生长效应;经济效益;生长量;速生丰产林

外文关键词：Eucalyptus urophylla , site preparation, yield, economic benefit

分类号：S792.390.5;S725.4

摘要：对 3种整地方式营造尾叶桉丰产林的生长量及经济效益进行了综合分析。结果表明 :达到 7年生轮伐时 ,生长量排序是机耕 2次 >机耕 1次 >人工挖穴 ,机耕 2次产量最高 ,林分平均高、径、蓄积量生长达 1 5 .2 9m ,1 4.73cm ,1 2 0 .1 2m3/hm2 ,但林分抗风性能较差。经济效益分析排序为机耕 1次 >机耕 2次 >人工挖穴 ,机耕 1次经济效益最佳 ,可获纯利 6 5 91 .73元 /hm2 ,投入与产出比为 1∶2 .39,内部收益率达 30 .6 9%。综合比较 ,机耕 1次配合人工挖穴是沿海地区发展尾叶桉速生丰产林的较佳整地方式。
A site preparation experiment was carried out in Yangxi county of Guangdong province. The treatments adopted were as follows: (1) Overall cultivated to a depth of about 40 cm by a tractor for 2 times and then dug holes of size 50 cm×50 cm×40 cm ; (2) cultivated 1 time and dug holes of 50 cm×50 cm×40 cm; (3) dug manually holes of 60 cm×60 cm×50 cm without cultivation. The results indicated that the first treatment gained the highest volume, mean height and DBH from the age of 3 to age 7 years , its volume yield reaches 120.12 m 3/hm 2 at age 7 years, higher than another two treatments. At the harvesting ( 7 years a rotation ), the second treatment gained the highest economic benefit with an interest of 6591.73 yuan per hectare, and the cost/output ratio was 1∶2.39. The IRR reaches 30.69%, and its yield reaches 103.95 m 3/hm 2.\;