This paper stydies on how to handle initially the remainder of cleaning,afforesting and thinning into the form that can be convenient to carry in forest.
研究将清育林和间伐剩余物初加工成方便在林间运输的形态,在林间采用科学合理的载运工具,将这些原料运到林场进行热电联产综合开发,加工成方便运输的发电用原料。
Bioactivity and field efficacy of 0.3% azadirachtin EC against Parocneria orienta;
印楝素乳油对蜀柏毒蛾的生物活性及林间防效
Based on the biological and ecological characteristics of Russula virescens, several forest management measures were taken comparing with the test in order to increase the fruitbody production of this species in the field.
根据绿菇的生物学及生态学特性,本研究采取一系列的林间管理措施进行对比试验。
In order to study the effects of tree-crop intercropping on young plantations of Populus tomentosa in the plain along the Yellow River,field experiments have been conducted by observing the growth of forests,nutrient contents in leaves,nutrient contents and water contents in soil and the output of crops.
为探讨鲁西黄泛沙地毛白杨幼林的农林间作效果,采用田间对比试验方法,观测了不同间作处理的林木生长量、叶片养分含量、土壤养分含量和水分含量及作物产量,并对土壤及树体养分状况与林木生长量进行相关分析。
Three insecticides were used for the control experiment on three main pests of Acacia mearnii, Homona coffearia Mayrick, Clania variegata Snellen and Ascotis selenaria Butter.
选用3种农药对黑荆树主要食叶害虫柑橘卷叶蛾、大袋蛾、黑荆大造桥虫进行林间防治试验。
Different strains were selected against Anoplophora chinensis in the laboratory, which were used to control Anoplophora chinensis in the forest conditions.
本论文主要报道福建不同地区桦树星天牛的为害情况，研究桦树星天牛空间格局、光皮桦不同家系对星天牛幼虫抗性，室内筛选出防治星天牛成虫、幼虫的金龟子绿僵菌优良菌株，利用筛选的金龟子绿僵菌优良菌株林间防治星天牛成虫、幼虫，为桦树星天牛的防治提供理论依据。
The function and grazing utilization of interforest grassland in southern China;
我国南方林间草地的作用及其放牧利用技术
Estimation of interforest grassland yields and nutritive quality in Daxinganling;
大兴安岭林间草地产草量及营养品质测定研究