英语人>网络例句>树种 相关的搜索结果
网络例句

树种

与 树种 相关的网络例句 [注:此内容来源于网络,仅供参考]

Plant measure according to material condition and fundamental that plant the tree and grass that the region originally grow , choose the good and agrestic ,planted by many years adapting to the strong anti- contain tree and grass.

植物措施根据各分区林草种植的具体立地条件,按&适地适树,适地适草&的原则,选择优良的乡土树种和经多年种植已适应环境有较强抗污染性能的树种和草种。

Leaves , stems and buds of colored-leaf trees are colorful , they are white, or yellow , or red, or orange etc., some colored-leaf trees are of two kind of colors, such as golden sprinkle in green leaves, or with golden edge, or different color in two faces of a leaf , some colored-leaf trees with leaves gradual changing amang yellow ,orange , red , purple.

彩叶树种的叶片、茎、芽等色彩丰富,或银色、或黄色、或红色、或橙色……有些彩叶树种表现出复色如洒金、镶边、异色等,有些体现出黄、橙、红、紫等色彩渐变过程。

At high elevation above 1800 m, Betula ermanii was the only species that could form a mono-dominant community.

随着海拔的上升,进入主林层的树种越来越少,海拔高于1800m时,岳桦是唯一可以成为建群种的树种,形成了单优势种群落。

Owning to higher ILUE, growth rates and water use efficiency, the woody species suitable for the restoration of the oil shade waste dump are as follows, Acacia auriculiformis, Bombax malabaricum, Erythrina indica, Terrninalia bellinca, Tristania confrrta, Ormosia pinnata, Gassiasiamea, Samanea saman, Schima wallicliii, Syzygium cumini.

树种对光能的利用、生长的优势和有较高的水分利用效率综合评价,提出了对油页岩废渣场生态恢复应用较适宜的树种有:大叶相思、木棉、刺桐、油榄仁、红胶木、海南红豆、铁刀木、雨树、红荷木和乌墨。

Company of northward forest products is set in Burnie with south the ash research center with new Ridg-ley, main research the activity is centered in tree of ash of establish of thaw condition sow to plant, shine especially fruit eucalyptus He Laan , these two trees are planted look at present most agree with Dasimaniya grows below the air temperature condition of city northwest ministry.

北方林产品公司设在Burnie以南Ridg-ley新的桉树研究中心,将主要研究活动集中在暖和气候条件下种植桉树树种,非凡是亮果桉和蓝桉,这两个树种目前看来最适合于塔斯马尼亚州西北部的气温条件下生长。

Results of sampling showed that the typical evergreen broad-leaved forest of Mt. Jiulianshan consisted mainly of subtropical families and genera with dominant families including Fagaceae, Lauraceae, Camelliaceae, Styracaceae, Ericaceae, and Magnoliaceae.

群落主要由热带、亚热带科属组成,优势科为壳斗科Fagaceae,樟科Lauraceae,山茶科Camelliaceae,安息香科Styracaceae,杜鹃花科Ericaceae和木兰科Magnoliaceae等科,优势树种以相应的优势科属树种为主。

According to the life form of species and their roles in communities, 6 species groups are used to do ordination analysis and environmental interpretation. The result suggests that:①Despite the strong man-made disturbance at lower altitude sites, the number and character of evergreen species show an change along the altitude gradient.②The rare and endangered species concentrated at two sectors along altitude gradient, corresponding to the upper and lower borders of the mountain mixed forest belt of evergreen and deciduous broad-leaved species.③The pioneer tree species concentrated on the middle and upper positions at lower elevation.④The deciduous accompany tree species show a great diversity on middle and lower position at middle and higher elevation.⑤Coniferous species differentiate along elevation and local topographical gradient.⑥Deciduous species in Quercus, Castanea, Fagus, Carpinus genus as well as coniferous species play primary community-constructing roles at different topographical position at Dalaoling region.

根据物种生活型及其在植物群落中的地位,分6个种组进行排序和环境解释,表明:①尽管低海拔地段受到强烈人为干扰,常绿种类仍显示了数量和性质沿海拔梯度的变化;②珍稀物种在海拔梯度上形成两个相对集中的区段,大致对应于山地常绿落叶阔叶混交林带的上下边缘;③先锋树种在中低海拔的中上坡位富集;④在中、高海拔的中低坡位,落叶的乔木伴生种显示了极大的多样性;⑤为数不多的针叶树种在海拔和局部地形梯度上也有明确分异;⑥它们和落叶的栎、栗、水青冈、鹅耳枥属物种在大老岭地区不同地形部位的植被中起着主要的建群作用。

Castanopsis fissa is an important province of native broad-leaved species, and is one of our province secondary evergreen broad-leaved forest one of the main tree species composition.

黎蒴是我省重要的乡土阔叶树种之一,也是我省次生常绿阔叶林主要组成树种之一。

There were only 94 vascular plant species, belonging to 50 family and 75 genera. The dominant species in the communities were deciduous broadleaf species Liquidambar formosana, Robinia pseudoacacia, Ailanthus altissima, Acer buergerianum, and Celtis sinensis, evergreen broadleaf species Cinnamomum camphora and Elaeocarpus glabripetalus, and Phyllostachys heterocycla. Robinia pseudoacacia+Cinnamomum camphora community had the highest Shannon-Wiener index (1757) and Phyllostachys heterocycla+Acer buergerianum community had the highest Simpson index (0163), but no consistency was observed between the curves of H and D. For vertical structure, most communities had no significant understory stratification.

结果表明:辰山植物区系以泛热带和北温带占优势,具有典型亚热带和温带成分交汇和南北植物分布交错特征;但保育区内种类单一,维管束植物仅有49科69属94种;主要群落是以枫香、刺槐、臭椿、三角枫和朴树等为优势树种的落叶阔叶林,以香樟和秃瓣杜英等为优势树种的常绿阔叶林,以及毛竹林;物种多样性普遍较低,Shannon-Wiener多样性指数最高为刺槐+香樟群落(1.757),Simpson均匀度指数最高值为毛竹+三角枫群落(0.163);多样性指数曲线和均匀度指数曲线不具有一致性的变化趋势;多数群落垂直结构中无明显林下分层现象;演替前期的落叶乔木种群后续个体不足。

The validation for each species crown ratio model indicats that the precision of prognose are all exceed 91%,also pass the Ftest except Betula costata and Acer mono.

各个树种的冠长率模型的检验结果表明,10个树种的预估精度都超过了91%,除了枫桦和色木,都通过了置信椭圆F检验。

第8/79页 首页 < ... 4 5 6 7 8 9 10 11 12 ... > 尾页
推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力