桉树科技
桉樹科技
안수과기
EUCALYPT SCIENCE & TECHNOLOGY
2014年
4期
43-45
,共3页
韦景成%黄承标%龙永东%黄超群%覃广战%蔡宗和
韋景成%黃承標%龍永東%黃超群%覃廣戰%蔡宗和
위경성%황승표%룡영동%황초군%담엄전%채종화
邓恩桉%巨尾桉%生长%经济效益%高海拔%桂西北
鄧恩桉%巨尾桉%生長%經濟效益%高海拔%桂西北
산은안%거미안%생장%경제효익%고해발%계서북
Eucalyptus dunnii%Eucalyptus grandis×E.urophylla%growth%economic profit%high altitude%northwestern Guangxi
为了探明高海拔地区引种桉树的生长状况，在桂西北900~930m的地段上引种邓恩桉和巨尾桉，分别对其生长调查和经济效益分析，结果为：6年生邓恩桉和巨尾桉的平均胸径分别为18.53 cm和17.83 cm；平均树高分别为22.12m和24.03m；林分平均蓄积量为227.82 m3·hm-2和217.62 m3·hm-2；年平均纯收入分别为20998元·hm-2和19980元·hm-2。研究结果充分说明，在桂西北高海拔地区引种邓恩桉和巨尾桉，具有速生、高产和显著的经济效益，应值得推广。
為瞭探明高海拔地區引種桉樹的生長狀況，在桂西北900~930m的地段上引種鄧恩桉和巨尾桉，分彆對其生長調查和經濟效益分析，結果為：6年生鄧恩桉和巨尾桉的平均胸徑分彆為18.53 cm和17.83 cm；平均樹高分彆為22.12m和24.03m；林分平均蓄積量為227.82 m3·hm-2和217.62 m3·hm-2；年平均純收入分彆為20998元·hm-2和19980元·hm-2。研究結果充分說明，在桂西北高海拔地區引種鄧恩桉和巨尾桉，具有速生、高產和顯著的經濟效益，應值得推廣。
위료탐명고해발지구인충안수적생장상황，재계서북900~930m적지단상인충산은안화거미안，분별대기생장조사화경제효익분석，결과위：6년생산은안화거미안적평균흉경분별위18.53 cm화17.83 cm；평균수고분별위22.12m화24.03m；림분평균축적량위227.82 m3·hm-2화217.62 m3·hm-2；년평균순수입분별위20998원·hm-2화19980원·hm-2。연구결과충분설명，재계서북고해발지구인충산은안화거미안，구유속생、고산화현저적경제효익，응치득추엄。
In order to investigate the growth performance ofEucalyptusinhigh altitudeareas,plantingsof EucalyptusdunniiandEucalyptus grandis×E.urophyllawere established at a site of 900~930maltitude in northwesternGuangxi. The results were as follows: average DBHs of 5-year-oldE. dunniiandE. grandis×E. urophyllatrees were 18.5 cm and 17.8 cm respectively; average heights were 22.1m and 24.0m and standing volumes were 227.8 m3·hm-2and 217.6 m3·hm-2. The average net profit calculated for stands of each species wereRMB20 998 yuan·hm-2·yr-1andRMB19 980 yuan·hm-2·yr-1respectively. The results showed that introducingE.dunniiandE. grandis×E.urophyllainhigh altitudeareas of northwesternGuangxi promises fast growth, high yields and high economic profits. Therefore, these species could be considered forplanting on larger, commercial scales in such environments.
