查询词典 forest

From 6860 to 3170 cal.yr BP,semi-desert steppeexpanded,regional montane forest steppe retreated,suggesting a prolonged warm and dryclimate.Between 3170 and 2340 cal.yr BP,regional forest steppe expanded whereassemi-desert steppe retreated,indicating the climate became cool and wet gradually and thehumidity reached the maximum at the end of this stage.During 2340～1600 cal.yr BP,Poaceae steppe dominated whereas wetland meadow expanded and the montane forest stepperetreated,suggesting a cool and wet climate prevailed,wormwood grass steppe prevailed andthe climatic instability increased after 1600 cal.a BEThe climate and environmental reconstructions by pollen were supported by the diatomrecords.A relative high lake level and moister climate prevailed between 8660 and 7230 cal.yr BP as inferred by the dominance of planktonic diatom genera and high planktonic/benthicratio (〉40).low lake level and dry climate sustained during 7230～2330 cal.yr BP assuggested by the low abundance of planktonic diatom and low planktonic/benthic ratio ～20and the lake returned to high level during 2330～930 cal.yr BP as inferred by there-dominance of the planktonic diatom and the high value of palnktonic/benthic ratio.The pollen-based climate reconstruction was also consolidated by the grain size andPediastrum concentration records.

Ugii Nuur湖周围现代孢粉研究表明：松属为空气传播的外来花粉，其含量变化可能指示了远山森林草原发育状况；禾本科具显著低代表性，母体植物建群时含量通常在10％以下：藜科花粉含量可以指示区域气候干旱程度。2、以现代孢粉研究为基础、可靠AMS~(14)C年代为框架，Ugii Nuur孢粉记录高分辨率地重建了蒙古国中部地区过去8660 cal.yr BP以来的植被和气候变化。8660～7800 cal.yr BP研究区植被为禾草草原，湖畔及河谷低地发育苔草草甸，远山发育松属针叶林和森林草原，气候温和略湿润；其中8350～8250 cal.yr BP湿生草甸扩张，旱生植物成分减少，气候凉湿。7800～6860 cal.yr BP旱生成分增加，气候转向暖干。6860～3170 cal.yrBP半荒漠草原扩张，远山森林草原退缩，山地草原和河谷及湖畔湿生草甸退缩，气候持续暖干。3170～2340 cal.yr BP半荒漠草原退缩，远山森林草原扩张，气候转凉变湿，末期湿度条件达最佳。2340～1600 cal.yr BP禾草草原发育，湖畔及河谷低地湿生草甸扩张，远山森林草原略有退缩，气候总体较凉湿。1600 cal.yr BP以来研究区发育禾草-冷蒿草原，气候波动较大。

Forest carrying capacity is an important and key index in evaluating forest sustainability and one gist of forest management and decision-making of a certain region.

它是森林可持续性评价中的一个重要的关键指标，是区域森林经营管理决策的依据之一。

Based on the theories of sustainable development,index system of forest resources sustainable management and comprehensive evaluation of urban forest,the index system of measure the urban forest sustainable development have been put forward.

在可持续发展理论、森林资源可持续经营指标体系研究及城市森林综合评价指标体系研究的基础上，提出衡量城市森林可持续发展的指标体系框架，设计城市森林可持续发展的综合评价方法。

of spatial pattern analysisof forest landscaperevealed that,the value of each spatial pattern index of forest landscapewas strongly influenced by comparative economic benefit of landexploitation and forest management level.

通过森林景观空间格局分析，可以看出，森林景观类型的各项空间格局指标受土地利用的经济比较效益和经营的集约度影响较大。

However, along with the use in a deep going way, most users find that the forest reserves map which is built by traditional vector data models in GIS is different from the real.:In traditional forest distribution map, we give tacit consent to the fact that the forest is represented by a polygon, whose boundary is taken as a abrupt change between different types and the interior of the polygon is regarded as uniform.

随着应用的深入，很多用户发现通过传统GIS的矢量模型模式构建的森林资源图上所表示的信息与客观世界中森林的分布是有差别的：基于传统的GIS矢量模型下构建的森林分布图中，多边形的边界默认为一种突变，同时森林内部被认为是均匀的。

Men who dwell outside the forest henceforth need not come before our justiciars of the forest following a general summons, unless they are named in a plea or are sureties for any person or persons arrested for forest offences.

男子谁住以外的森林，今后不必来到我们justiciars森林一般传票后，除非它们被命名为一个认罪或担保人的任何一人或数人被捕，森林罪行。

The outputs of ZELIG model was used to 1evaluate the environmentalfactors which influence the growth of tree species of broad leaf korean pine forestin Changbai mountain;2simulate the dynamics of main types of forest in broad leafkorean pine forest zone and 3simulate the effect of selective cutting experiment onbroad leaf korean pine forest.

本文以森林Gap模型的理论为基础，通过大量的外业调查，建立了长白山阔叶红松林的ZELIG模型，并根据ZELIG模型的模拟结果对长白山阔叶红松林带的树木生长的环境因子进行了评价，同时对阔叶红松林带内的几种主要的森林类型进行了动态模拟，最后运用ZELIG模拟了阔叶红松林的择伐试验。

The Yilan Special Route No. 1 is one of the important tourist roads in the Taipin Mountain Forest Recreation Area, which is managed by the Luodong Forest District Office, Forest Bureau, Council of Agriculture, Executive Yuan. However, landslides due to typhoon and heavy rainfall occurred frequently along the road from milage stake 6km through 8km south of the Midway Explanation Station.

宜专一线公路系通往行政院农业委员会林务局罗东林区管理处所辖管太平山森林游乐区重要之观光道路，惟位於该公路里程6km至8km间，约在中间解说站南侧路段，每逢台风豪雨即造成道路边坡明显滑动。

The whole city is covered with dense forest and with networks of rivers and lakes. As the provincial key timberland, the forest area reaches 450,000 ha., the forest coverage 70% and the alive timber storage 38 million steres.

全市森林茂密，有林地面积45万公顷，森林覆盖率近70%，活立木蓄积量3800万立方米，是吉林省重点木材生产基地之一。

There were no significant differences between the pine forest and the oak forests in terms of leaf area index, canopy coverage, and light intensities above and beneath canopy. The canopy uniformity of the pine forest was significantly lower than that of the oak forest.

l油松林与辽东栎林的叶面积指数、林冠覆盖度、辐射因子和林下光资源没有显著差异，但油松林林冠均匀性显著小於辽东栎林。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。