查询词典 selection forest

Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3％(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.

为了评估该物种的栖息地现状和变化情况，我们通过野外调查工作，应用GIS和RS技术，分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像，并对解译结果进行了计算和分析，得到了以下西藏种群栖息地的主要结果：1）现有暗针叶林（包括原始针叶林和针阔混交林）面积是30 500 hm2，夏季牧场面积是13 100 hm2，农田面积是6 400 hm2；2）在过去20年间（1986-2006年），暗针叶林面积减少了14.6％（5 200 hm2），夏季牧场面积增加了47.2％（4 200 hm2），农田面积增加了14.3％（800 hm2）；3）在过去20年间，暗针叶林的斑块数量增加了68.4％，平均斑块面积下降了49.3％（从1986年的15.1 hm2下降到2006年的7.6 hm2），最大的斑块指数下降了54.9％；景观丰富度并没有变化，但Shannon多样性指数和Shannon均匀度指数分别增加了2.7％。

At large scale, the result of comparing of optimization structure of forest type with the present structure of forest type illustrates that the present economical forest area is larger while the mixed forest is smaller. So decreasing economical forest area and increasing mixed forest area should be the main measurements to optimize spatial patterns. At small scale, the evaluation of the landscape inner structure index illustrates that the forest structure and coverage is smaller, which should be regulated and so the uneven-aged, multi-layered and mixed forest should be the object of the forest structure design.

大尺度上根据植被类型优化结构和现有植被类型结构数据的对比分析可知，现有经济林面积则过大，混交林面积较小，因此主要是减少经济林面积，改造针叶和阔叶纯林为混交林，从而增加混交林面积，以达到最优植被类型结构时的空间配置；在小尺度上通过对景观内部结构指数的计算分析可知，该区林分结构和郁闭度分指数值较小，应予以着力调整；由研究结果可知，异龄、多层次、混交的水源保护功能最好，因此稳定的林分结构设计目标就是尽量使林分形成异龄、多层次、混交林。

Article 8 For national focal point shelter belt, and forest for special uses, the competent forestry authority of State Council shall produce opinions and report to the State Council for approval, then promulgate it; for local key shelter forest and forest for special use, the competent forestry authority of the people's government of a province, autonomous region or municipality directly under the central authority shall produce opinions and report to the people's government at the same level for approval, then promulgate it; for other shelter forest, timber forest or special-use forest as well as economic forest or fuel forest, the competent forestry authority of people's government at county level shall demarcate according to the state's relevant regulations on forest categorization and the arrangement and organization of the People's government at the same level, and report to the people's government at the same level for approval and promulgation.

第八条 国家重点防护林和特种用途林，由国务院林业主管部门提出意见，报国务院批准公布；地方重点防护林和特种用途林，由省、自治区、直辖市人民政府林业主管部门提出意见，报本级人民政府批准公布；其他防护林、用材林、特种用途林以及经济林、薪炭林，由县级人民政府林业主管部门根据国家关于林种划分的规定和本级人民政府的部署组织划定，报本级人民政府批准公布。

The ecosystems were classified into 13 types including valley rain forest, mountainous rain forest, tropical monsoon forest, mountainous coppice forest, mountainous ever green forest, tropical coniferous forest, shrubs, plantation, timber forest, windbreak forest, mangrove, savanna, and crop land, and then, the regulation services and their economic values of Hainan Island ecosystem were assessed and evaluated by terms of water-holding, soil-conservancy, nutrient cycle, C fixation, and windbreak function.

研究表明，2004年海南岛基于生态系统服务功能的绿色GDP为1042.80—1072.84亿元。其中传统GDP为769.36亿元、环境污染经济损失为10.54亿元、生态GDP为283.98—314.02亿元。经分析可知道：海南岛由于工业并不发达，其环境污染损失并不严重，只占传统GDP的1.4％；然而海南岛生态系统服务功能所提供的价值却是非常大，其中生态GDP是传统GDP的37％—41％。

Based on the concept and the theory of forest park and forest tourism, development advantages of Hanzhong forest park were identified as follows: i through the past several years'development, forest tourism products were getting so abundant gradually that a fundamental scale was formed, with three national forest parks as well as three province parks founded; ii the idea of"tourism stimulation"was determined as the development strategy in the province since forest tourism played an increasingly significant part in the development of Hanzhong economy and society; iii geo-topographically, forest park in Hanzhong not only possess similar precipitous view of Qinling, but also equally splendid scenery of Bashan; iv hydrologically, the landscape had a lasting appeal as that in south China to some extend; v the forest located in the best site of the same latitude; vi with the opening of Xihan expressway, access to Hanzhong was upgraded prominently, which made the park a garden of Xi'an and a resort for many citizens.

本文从森林公园及森林旅游的概念及相关理论入手，提出了汉中森林公园和森林旅游的发展优势，即：1、通过多年发展，森林旅游产品日益丰富，初具规模，现有国家级3家，省级3家；2、&旅游活市&被汉中市委、市政府确定为发展战略，在汉中经济社会中的重要地位进一步提升；3、从地貌景观上看兼具秦岭的险峻与巴山的锦绣；4、水文上看，颇具江南山水韵味；5、森林植被处于同纬度最好的地区；6、西汉高速公路开通，汉中交通能级大幅提升，成为西安后花园和区域性休闲旅游地，给森林旅游带来无限生机。

Since they are now beginning to consider the necessity of technical manpower dispatching, the selection of the right temporary help service firms has become a very important issue.In the past, supplier evaluation and selection studies mostly focused on the manufacturing and service industries. Hence, this paper studied the past domestic studies conducted on supplier selection to understand the appropriate selection guidelines that would serve as the fundamental guidelines for the selection of outsourcing manpower companies. The PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluations) proposed by Brans and Vincke in 1985 was used as the supplier selection tool for the study. Finally, we employed a simulated case study where we consolidated the selection guidelines,method and tools to create a reference for future practical applications and academic researches.

在过去，有关于厂商评选的国内外文献中，其研究对象以制造业及服务业居多，针对人力派遣公司评选准则之文献则相当的缺乏，因此，本研究将讨论国内半导体设备供应商评选技术人力派遣公司之准则，藉由过去国内学者对供应商评选之相关研究，寻得适宜的评选准则，以做为评选人力派遣公司之基础，采用由Brans及Vincke在1985年所提出之PROMETHEE（Preference Ranking Organization Method for Enrichment Evaluations）法做为评选供应商之工具，并将此方法藉由Excel应用软体予以辅助计算，最后，使用模拟个案，将研究所提出的评选准则、方法及工具三者结合，提供实务运作及学术研究上作为参考。

The researches cover silviculture, vegetation management, tree physiology, ecophysiology, dendrochronology, forest ecology, forest fire ecology, forest soil biology, biotechnology, forest genetics, forest entomology and pathology, forest practices effects on biodiversity and sustainability and forest economics etc.

该杂志研究领域涉及造林学、植被管理、树木生理学、生态生理学、树木年代学、森林生态学、森林大火生态学、森林土壤生物学、生物技术、森林遗传学、森林昆虫学与病理学、森林实践对生物多样性与稳定性的影响以及森立经济学等。

The major types of China tropical forests are: tropical rain forest (including humid rain forest and mountain rain forest); tropical seasonal rain forest (including half-evergreen seasonal rain forest, deciduous seasonal rain forest, limestone seasonal rain forest); south sea coral island vegetation; coast mangrove.

次生林占热带地区林地面积的48.33%，占有林地总面积的50.63%。中国热带林地和次生林的实际数字估计要比这一数值大6%以上，因为中国这几年高度重视林业建设，森林植被特别是热带森林植被恢复得很快，林地和次生林一直在不断增加。

But on account of excessive cut since 1949, forest resources cutdown sharply, bring a series of problem, for instance, forest productivity decrease, forest habitat fragmentation, agrestic species become extinct at a high speed, environmental quality decline, this paper discussed forest resources change in Heilongjing Province from statistical change feature of forest resources and forest landscape pattern change, using model of GM(1,1) to predict the development trend of forest resources here.

但由于半个多世纪的过量采伐，致使森林资源锐减，带来了森林生产力下降、森林生境破碎化、乡土物种加速灭绝和环境质量下降等一系列问题。本文从森林资源统计变化特征、森林景观格局变化两个方面对黑龙江省森林资源的变化进行了研究，并用灰色理论的GM(1，1)模型对该省森林资源未来的发展进行了预测。

These vegetation types are (1) Yushania niitakayamensis thicket (2) Juniperus squamata-Rhododendron pseudochrysanthum thicket (3) Abies Kawakamii forest (4) Tsuga chinensis forest (5) Abies Kawakamii-Tsuga chinensis forest (6) Picea morrisonicola forest (7) Chamaecyparis formosana forest (8) Pinus taiwanensis forest and (9) Evergreen broad-leaved forest.

使用双向指标种分析法与列表比较法将100个样区切分成9个植被类型，分别为玉山箭竹矮灌丛(6)、玉山圆柏-玉山杜鹃灌丛(3)、台湾冷杉林(7)、台湾铁杉林(3)、台湾冷杉-台湾铁杉林(9)、台湾云杉林(2)、桧木林(4)、台湾二叶松林(12)、针阔叶混合林(41)、常绿阔叶林(13)。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。