摘要
在对我国桉树、落叶松及樟子松主要栽培区进行实地调查的基础上 ,利用有关地区森林资源二类调查及样地测定资料 ,以气候生产力为指标 ,比较评价了广东和海南桉树人工林、广西桉树人工丰产林和黑龙江省国有林区落叶松、樟子松人工林现实生产力。结果表明 ,广东粤西、海南省桉树人工林现实生产力分别是当地气候生产力的 2 2 .81%和 4 1.0 8% ;广西速丰林平均达73.78%。落叶松、樟子松分别达当地气候生产力的 2 5 .70 %～ 4 1.6 8%和 2 8.4 5 %～ 5 1.5 5 %。以典型局、场或丰产林项目为基础 ,对各研究树种人工林生产潜力进行了系统分析 ,提出在现有技术与经济条件下 ,桉树人工速丰林应达到气候生产力的 80 .0 0 %以上 ;落叶松在≥ 14指数、樟子松在≥12指数立地上的生产力应分别达气候生产力的 70 %和 80 %以上。
Based on the sample plots of forest surveying, the present productivities of the Eucalyptus plantation in three provinces, Guangdong, Guangxi and Hainan, and of the Larix plantation and of the Pinus sylvestris var. mongolica plantation in Heilongjiang Province were evaluated with climate productivities of the different provinces. The results show: (1) The present productivity levels of Eucalyptus plantations are 22 81% and 41 08% of themselves climate productivities respectively in the west regional of Guangdong Province and in Hainan Province. (2)The present productivity of the fast growing and high yield Eucalyptus plantation is 73 78% of the climatic productivity in Guangxi Province. (3) The present productivities of Larix and Pinus sylvestris var. mongolica plantation are 25 70%～41 68% and 28 45%～51 55% of the climate productivity in Heilongjiang Province. The potentialities of the main three species of plantations were studied systematically. The productivity levels of the plantations, in the present conditions of the forest management technique and economy, are advanced. The fast growing and high yield Eucalyptus plantation would be higher than 80 00% of the climate productivity. The Larix, in ≥14 site index, and Pinus sylvestris var. mongolica plantations, in ≥12 site index, would be higher than 70 00% and 80.00% of the climate productivities.
出处
《林业科学研究》
CSCD
北大核心
2001年第6期657-667,共11页
Forest Research
基金
中国博士后科学基金资助项目 (1997年 )
关键词
桉树
落叶松
樟子松
生产力
人工林
潜力
Eucalyptus
Larix
Pinus sylvestris var.mongolica
productivity
plantation
