| 山东临沂地区杨树人工林密度及经济效益的研究* |
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| 引用本文： | 郑世锴,刘奉觉,徐宏远,卢永农,杜佃桓,吴衍德.山东临沂地区杨树人工林密度及经济效益的研究*[J].林业科学研究,1990,3(2):166-171. |
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| 作者姓名： | 郑世锴 刘奉觉 徐宏远 卢永农 杜佃桓 吴衍德 |
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| 作者单位： | [1]中国林业科学研究院林业研究所 [2]山东省沂南县沂河林场 |
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| 基金项目： | 杨树丰产栽培中间试验”(国家科委合同项目)的一部分 |
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| 摘 要： | 密度在人工林集约栽培中是一个重要问题,一旦确定在林分整个生长过程中都起作用,对采伐年龄和产量影响很大。合理的密度应保证林木群体结构最大限度地利用空间,达到最高产量,同时还应注意到所培育木材的径级的价格。 本研究总结了短轮伐期集约栽培下各种密度杨树人工休的生长规律及产量;探索间伐是
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| 关 键 词： | 杨树 人工林 集约栽培 林分密度 间伐 生长规律 产量 经济效益 |
| 收稿时间： | 6/1/1989 12:00:00 AM |
A STUDY ON STAND DENSITY AND ECONOMIC BENEFITS OF POPLAR PLANTATION IN LINYI PREFECTURE, SHANDONG PROVINCE |
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| Zheng Shikai,Liu Fengjue,Xu Hongyuan,Lu Yongnong,Du Dianhuan and Wu Yande.A STUDY ON STAND DENSITY AND ECONOMIC BENEFITS OF POPLAR PLANTATION IN LINYI PREFECTURE, SHANDONG PROVINCE[J].Forest Research,1990,3(2):166-171. |
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| Authors: | Zheng Shikai Liu Fengjue Xu Hongyuan Lu Yongnong Du Dianhuan and Wu Yande |
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| Institution: | The Research Institute of Forestry CAF;The Research Institute of Forestry CAF;The Research Institute of Forestry CAF;Yihe Forest Farm, Yinan County, Shandong Province;Yihe Forest Farm, Yinan County, Shandong Province;Forest Bureau of Yinan County |
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| Abstract: | According to the trial of 7 stand densities, the growing rules and volume yields of poplar plantations with different densities under short rotation intensive cultivation (SRIC) system were summerized. Based on the prices of rural building timber an economic analysis was made for different densities. The best spacing with maximum yield and income was suggested for growing small and medium sized rural building timber. The thinning trial shows that thinning didn't increase volume yield. |
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| Keywords: | poplar plantation short rotation intensive cultivation stand density thinning |
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