太行山区油松残次林采脂试验研究  

THE EXPERIMENTAL RESEARCH INTO DIPPING FROM CHINESE PINE IN DETERIORATED FOREST IN TAIHANGSHAN MOUNTAIN AREA

作　　者：任满田 张福计[2] 吴玉柏 

机构地区：[1]山西省林业技术推广站,太原030012 [2]山西省林业科学研究所,太原030012 [3]山西省中条山森林经营局,侯马043008

出　　处：《林业科学》1993年第4期384-388,共5页Scientia Silvae Sinicae

基　　金：林业部"七五"重点科技推广项目

摘　　要：油松(Pinus tabulaeformis Carr.)是我国北方分布广、适应性较强的乡土树种,据调查,山西有天然油松林22.6万ha,其中林龄在45年生左右,每公顷蓄积在45m^3以下的低产残次林13.3万ha,集中分布在太行山区。为了充分地开发和利用这些资源,在改造前获得一定的经济效益,我们进行了油松残次林采脂试验研究。一、试验地自然概况试验地选在太行山森林经营局铁桥林场的大西沟作业区,位于东径113°25′,北纬37°32′,海拨1400-1500m,坡度25-35°,油松林平均林龄43年,平均树高8.7m,平均胸径17.4cm;优势树种油松,植被绣线菊、沙棘、胡枝子等;土壤薄-中层褐土。The secretion regulation of pine gum of Chinese pine in deteriorated forest in Taihang mountain area was revealed. The Results show: the pine gumoutput has relations with the temperature in the forest, the DBH, the slopexposure, the dipping wood tapping time and so on. The temperature in theforest and the DBH are both positively correlative with the pine gum output;Using ordinary method, the pine gum output gotten from the shady and semi-shady slop is 14.7% and 13.9% higher than that from the sunning slop; Thepine gum output per tree using α-NAA is 19. 5% higher than that usingordinary method; The most suitable dipping time is at 7:00-8:00 am in Julyand August.

关 键 词：油松 残次林 采脂 

分 类 号：S791.254[农业科学—林木遗传育种]