经营水平对杨树人工林生长及经济效益的影响  

The Effect of Management Level on the Growth and Economic Benefit of Poplar Plantation

作　　者：刘春鹏[1,2] 王志宏 王泽平 李向军 支恩波[1,2] 李新利 LIU Chun-peng1, 2,WANG Zhi-hong3,WANG Ze-ping3,LI Xiang-jun1, 2,ZHI En-bo1, 2, LI Xin-li1, 2(1.Hebei Academy of Forestry Sciences,Shijiazhuang,Hebei 050061,China;2.Hebei Engineering Research Center for Trees Varieties,Shijiazhuang,Hebei 050061,China;3.Xuanhua Forest Farm of Zhangjiakou City,Xuanhua,Hebei 075100,China)

机构地区：[1]河北省林业科学研究院,河北石家庄050061 [2]河北省林木良种工程技术研究中心,河北石家庄050061 [3]张家口市宣化林场,河北宣化075100

出　　处：《河北林业科技》2018年第2期17-19,29,共4页Journal of Hebei Forestry Science and Technology

基　　金：河北省林业科学技术研究项目"毛白杨缓苗期形成机理及缩短缓苗期关键技术"(1602477);河北省省属科研院所奖励性后补助项目"河北省杨树良种选育及集约经营技术研究"(15256817H)

摘　　要：为了探讨经营水平对杨树(Poplar)人工林生长及经济效益的影响,该研究以欧美107杨(Populus×euramericana)人工林(林龄为5a)为研究对象,通过查找资料、咨询农户和实地调查相结合的方法,对不同经营水平林分的生长和经济效益进行了调查分析。结果表明:(1)较高的经营水平能够显著促进林分胸径和树高的生长,管理良好比无管理的林分,胸径和树高分别提高了34.6%和58.4%。(2)较高的经营水平也能够显著促进林分单株材积和单位面积蓄积的生长,管理良好比无管理的林分,单株材积和单位面积蓄积均提高了193.9%。(3)经营水平的提高能够显著增加林分的经济效益,管理良好的林分净收益达到(72630±7194)元/hm^2,比无管理林分[净收益为20843)元/hm^2]提高了248.5%。综上所述,为了获得更大的经济效益,就应努力提升杨树人工林的经营水平。In order to study the effect of management level on the growth and economic benefit of Poplar plantation,this study took Populus×euramericana plantation（the age was 5 years old）as the research object,and investigated and analyzed the growth and economic benefit of stands with different management levels, by the Methods of searching data,consulting farmers and field investigation. The results were that：（1）the higher management level could significantly promote the growth of the DBH and height,the DBH and height of the stand with better management had respectively improved by 34.6% 和 58.4% compared with no management;（2）the higher management level could significantly promote the growth of the individual volume and unit stock volume,the individual volume and unit stock volume of the stand with better management improved both by 193.9% compared with no management;（3）the improvement of management level could significantly increased the economic benefit,the net earning of the stand with better management was 72630±7194 yuan/hm2,improved 248.5% compared with no management（the net earning was 20843 ±1511 yuan/hm2）.All the analysis showed that： in order to acquire more economic benefits,striving to improve the management level of poplar plantation should be done.

关 键 词：经营水平 杨树人工林 经济效益 欧美107杨 单株材积 

分 类 号：S792.11[农业科学—林木遗传育种]