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灰色局势
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  grey situation
    A GREY SITUATION DECISION FOR PLANTATION TREES IN XISHUANGBANNA
    西双版纳造林树种的灰色局势决策
短句来源
    On the basis of plantation on small scale and wood propery experiment on annual mean height in- crements,annual averege diameter increments,wood weight by colume,compressive strength,flexural strength,toughness and cross section hardness,23 species of valuable cabinet timbers in Xishuangbanna,are selected in plantation as target for grey situation decision by application of grey clustering method.
    本文在木材物理、力学性质测定和小面积造林实验的基础上,对已经成林的初步筛选出的23个树种,选取年树高生长量、年胸径生长量、木材气干容量、抗压强度、抗弯强度、冲击韧性和端面硬度7个表征造林树种速生珍贵的指标,应用基于灰色关联度的聚类分析方法,对西双版纳造林树种进行了灰色局势决策。
短句来源
    In this paper,based on overall analyses of effects of tending techniques on growth,population structure,species diversity of vegetation,biomass soil erosion and tending cost in young Chinese fir plantation,Multi\|target decision of different tending techniques by means of grey situation decision theory was carried out. The results showed that block tending and overall tending were favourable to elevate survival rate and promote growth of young Chinese fir plantation.
    本文在全面分析不同抚育技术对杉木生长、群体结构、林地植被物种多样性、生物量、水土流失和抚育成本的影响基础上 ,运用灰色局势决策理论对不同抚育技术进行多目标决策 ,结果表明 :块状抚育和全垦抚育可提高杉木的保存率 ,并促进杉木幼林的生长 ;
短句来源
  gray situation
    Some superior families,which can be used as breeding population for further genetic improvement of Ginkgo biloba,are selected out after comprehensive appraising through main component analysis,mathematical model of multiple-dimension space and multiple-target gray situation decision.
    分别采用R型因子法及多目标灰色局势决策法对 40个家系进行了综合评判 ,评选出了一批在苗期数量性状上表现优良的家系 ,这些家系可以作为叶用银杏家系选择的重点对象
短句来源
  grey state
    Grey State Strategy of Multi-objective for Selecting the Position of Engineering of Wood Transportation by Water
    木材水运工程选址的多目标灰色局势决策
短句来源
    Grey state strategy of variable management plans in Forestry Cutting and Planting Farm
    林业采育场多种经营方案的灰色局势决策
短句来源
    Technical economy analysis and multi purpose preferred grey state strate gies concerning plantation tree species, shelterbelt composition and their management types on coastal farmland in Jiangsu Province have been reported.
    对江苏沿海地区农田林网的经营类型、造林树种、林带配置进行了技术经济学分析和多目标灰色局势决策择优。
短句来源
  “灰色局势”译为未确定词的双语例句
    APPLYING THE GREY-SITUATION DECISION OF THE MULTIPLE OBJECTIVES TO THE FORESTRY DIVISION
    多目标灰色局势决策在林业区划中的应用
短句来源
    The basic principle of gray state strategy method and its application in selecting position of engineering of wood transportation by water were discussed in this paper, which can overcome the limitations of traditional methods and get more scientific and reasonable results
    论述灰色局势决策方法的基本原理及其在木材水运工程选址中的应用 ,应用该方法进行工程选址 ,可以克服传统方法的局限性 ,使结果更加科学合理
短句来源
    Multiple Objective State Decision-Making on Afforestation in Loess Hilly-gully Area
    黄土丘陵沟壑区植树造林多目标灰色局势决策
短句来源
    The grey system theory and methods of the grey-situation decision of the multiple objectives have been adopted in inquiring into the layout of the forest-type and the forestry development of the forest-division at a county level.
    本文应用灰色系统理论和多目标灰色局势决策方法,探讨县级林业区划中的林种布局和林业发展问题。
短句来源
    This paper expounds the basic principle of grey the author strategy method and its use in deciding the plan of diversified management in Cutting and Planting Farm of Forestry. The author points out that applying the method to preferential decision of the plan of diversified management can overcome the limitations of traditional method and make results be more scientific and reasonable.
    本文论述了灰色局势决策方法的基本原理及其在林业采育场多种经营方案决策中的应用 ,指出应用该方法进行多种经营方案优化决策 ,可以克服传统方法的局限性 ,使结果更加科学合理
短句来源
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The grey system theory and methods of the grey-situation decision of the multiple objectives have been adopted in inquiring into the layout of the forest-type and the forestry development of the forest-division at a county level.

本文应用灰色系统理论和多目标灰色局势决策方法,探讨县级林业区划中的林种布局和林业发展问题。

On the basis of investigation of natural regeneration of schrenk spruce after selecting cutting in the mid-eastern selector of the Tianshan Mountains, using the grey situation method from the grey system theory, this paper studies and analyses the regeneration effects of different sized stand-holes in selecting cutting shrenk spruce under various site conditions and puts forward the best decision in selection of the site factors for optimum stand-hole regenereation as well as the optimum selection of the opening...

On the basis of investigation of natural regeneration of schrenk spruce after selecting cutting in the mid-eastern selector of the Tianshan Mountains, using the grey situation method from the grey system theory, this paper studies and analyses the regeneration effects of different sized stand-holes in selecting cutting shrenk spruce under various site conditions and puts forward the best decision in selection of the site factors for optimum stand-hole regenereation as well as the optimum selection of the opening degree, which provides scientific basis for reasonable management of the schrenk spruce, especially for the ways of its cutting and developing.

本文根据天山中东部林区择伐后云杉林(下称择伐林分)天然更新的调查资料,应用灰色系统理论中灰色局势决策的方法,对不同立地条件下,择伐林分中不同大小林窗的更新效果进行了分析研究,得出了选择适宜林窗更新立地因子的最优决策,以及林窗开敞度大小的最优选择。为寻求天山云杉择伐林分的合理经营,特别是采育方式的选定,提供了依据。

With the theories and methods on technical economics and the grey stategy of multitarget, from the quantitative view, the evaluation and optimized model selection in 8 tree species deposition model for shelter belt in dry land cropping district, Fengxie, Jiangsu province, were carried out. The results are as follows: ① In dry laud district in Huang Huai plain, the deposition model in 7 tree species for sheoter belt used P x. euramericana as a principal tree species, mixed P x euramericana with a locust, and...

With the theories and methods on technical economics and the grey stategy of multitarget, from the quantitative view, the evaluation and optimized model selection in 8 tree species deposition model for shelter belt in dry land cropping district, Fengxie, Jiangsu province, were carried out. The results are as follows: ① In dry laud district in Huang Huai plain, the deposition model in 7 tree species for sheoter belt used P x. euramericana as a principal tree species, mixed P x euramericana with a locust, and paulownia as its margin. Its technical economic benefits were better than that of shelter belt composed of populus xiaozuanica and planting crops and managing multiple-purpose for forestry. ② Optimized model selected in tree species deposition, its main forest belt was to plant a line of paulownia in each side, to mix a poplar with a locust in another plant in the midside. The narrow forest belt made of tree species regarded a poplar as main production purpose. The auxiliary forest belt was made up with a poplar in rapid growth, like a shade forest belt. ③ While the main productive factor was input in the existing forest belt, the district short of funds and the labor force in surplus, cutting down the consumption in the embodied labor with higher live labor value still has its practical significance.

本文应用技术经济学和多目标灰色局势决策的原理与方法,对江苏省丰县旱作农区护田林带的8种树种配置模式,从定量角度进行了评价和优化选择,结果表明:1)黄淮平原旱作农区,以“欧美杨树为主,泡桐镶边,杨树和刺槐混交”等树种配置模式,技术经济效果优于原存的泰山青杨树林带,优于种植农作物和多种林业项目。2)选出的树种配置优化模式,主林带是在林带两侧各栽植一行泡桐,中间杨树和刺槐株间混交,并以杨树为主要树种组成的窄林带;副林带是欧美杨树行道式林带。3)现存林带的生产要素投入,应继续增加物化劳动投入,减少活劳动投入,以提高技术经济效益;但以较高的活劳动代价来减少物化劳动消耗,在资金短缺和劳动力剩余的地区,仍有其现实意义。

 
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