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生物多样性

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The main results are: construction of Tarim desert highway shelter-forest promoted soil microbial development, and with increase of plantation time of the shelter-forest, the quantity, fatty acid diversity index of soil microbe and diversity index of bacterial DNA segment enhanced notably. As to soil microbial community structure, bacteria are dominant population with amounting for over 80% of total soil microbe, and fungi is not more than 1% of total soil microbe, but soil microbial community structure was different among three soil layers. The conclusions from study methods of conventional culture, biological marker and molecule biology were almost identical, which illuminates that construction of Tarim desert highway made soil microbial activity enhance and so promote nutrient cycle and utilization of Tarim desert highway shelter-forest land.

结果表明,塔里木沙漠公路防护林的建设促进了风沙土土壤微生物的发育,随着防护林定植年限的增加,土壤微生物数量、脂肪酸和细菌DNA片段的多样性指数明显增大;土壤微生物区系组成中,细菌是优势类群,占微生物总数80%以上,而真菌很少,不到微生物总数1%,但在不同土层间有所差异;传统培养法与现代生物标记和分子生物学方法对塔里木沙漠公路防护林地土壤微生物多样性的研究结果基本一致,说明塔里木沙漠公路防护林的建设使林地土壤生物活性有所增强,有利于林地土壤养分循环与利用。

Shanghai Agrobiological Gene Center research subject: 1、 Adhering to the principle of keeping genetic diversity to the maximum extent, collect, appraise and keep the agricultural biological gene resource which was originally stored in Shanghai; Give priority to what is the most important, collect good resources with important scientific significance and economic value as well as application value at global range

上海市农业生物基因中心的主要研究内容:1、本着最大限度地保存遗传多样性的原则,广泛收集鉴定保存原产于上海市的农业生物基因资源;突出重点,全球范围内收集具有重要科学意义与经济价值或应用前景的优良资源;2、建立主要农作物功能基因组研究的资源平台;积极开展遗传材料的创制;发展种质资源保存与评价的技术方法;3、种质资源的综合评价与深入研究,鉴定、定位和克隆具有自主知识产权的重要农业生物基因; 4、进行植物新品种保护的研究;全国范围内分发与有效利用种质资源。

With a study of plant community succession on 5 stocking rates,herbage utilizational efficiency and risk-benefit balance,it is suggested the sustainable development should follow:(1)no degradational principle of rangeland,(2)the maximum herbage utilizational efficiency,(3)the risk-benefit balance,When stocking rate was no more than 2.67 sheep/hm2,the proportion of grasses and plant biodiversity index and evenness were increased based on Artemisia frigida and short-grass rangeland.

草地畜牧业可持续发展的三大生物经济原则为草场不退化原则、最大生物学效率原则和风险-利润权衡原则:(1)草场不退化原则。在冷蒿小禾草退化草原上,暖季期间1.33~2.67羊/hm\+2的放牧率下可使其发生恢复演替,禾草的比例增大,植物多样性指数和均匀度指数均有所提高,从而达到利用式改良的目的;相反,若继续重牧或过牧,放牧绵羊喜食的植物种类将进一步减少,植物多样性指数也有所降低。

The surveyed results show that as compared to the uncovered vegetation area, the existence of soil microbiotic crusts in the Tengger Desert region significantly increases the diversity and abundance of insect species, especially the diversity and abundance in the quadrats mainly covered by moss and lichen crusts are significantly higher than those in the quadrats mainly covered by cyanobacteria and algal crusts.

结果表明:与无结皮覆盖的植被区相比,生物土壤结皮在地表的覆盖显著地增加了昆虫的多样性和种的丰富度,其中以苔藓和地衣为主的结皮覆盖的植被样方中昆虫种的多样性和丰富度显著地高于以蓝藻和藻类为主的结皮样方。

Keywords: symbiontic evolution, immune modulation, antibody chrome, neural evolution

通过对神经元群体而不是神经网络群体进行进化设计,显著地减轻了计算量,同时利用生物免疫原理中的浓度机制和个体多样性保持策略进行免疫调节,有效地克服了未成熟收敛现象,提高了群体的多样性,从而加快优化设计速度。

The dissertation modifies the model of Holdridge's indexes of lifezone according to the features of the ecological climate of Xinjiang. The influence of the variation of vegetation caused by the climate variation of Xinjiang in recent decades is also analyzed. In recent 40 years, the type of life zone hasn't changed, the area and number of patch changed only. The diversity changed but not too much..That is, diversity of life zone changed in little range, the whole entiroment is still be a rather stable state, whill be goo for desertation expand contrandictorily.

根据新疆生态气候特征和生物地理规律对Holdridge生命地带分类模型进行修正,分析新疆近几十年来气候变化所引起的植被变化对于新疆土地荒漠化的影响。40多年来,新疆生命地带的类型数量并没有产生变化,只是各类型的面积和斑块数的变化,多样性有所波动,但是波动不大,也就是说生命地带多样性的震荡幅度不大,整个生态环境处于一种相对稳定的状态,这种稳定的生态环境状态有利于荒漠化的逆向发展; 7。

The diversity of liquor-making microbes in China has formed into a treasury of biological resource. The microbial species mainly include prokaryote such as bacteria and actinomyceto, and eucaryote such as yeast and mould.

中国白酒酿造微生物的多样性是生物资源的宝库,其种类主要包括原核生物中的细菌、放线菌,真核生物中的酵母菌、霉菌。

Neighbourhood composition and neighbourhood interaction would be affected by both biotic and abiotic factors, thus the plants appear as different spatial pattern, various neighbourhood effects, and unlike neighbourhood compositional and structural diversity.

各种生物非生物的因素影响了植物的邻体组成和邻体相互作用,表现为不同的空间格局、邻体效应、邻体组成多样性、邻体结构多样性。

That worries environmentist like Bill Snade of the sennar of bio?

这使得生物多样性中心环境学家BS非常担忧。

In addition to important competition-winning proposals--the Visual and Performing Arts Library in Brooklyn and the Guggenheim Guadalajara, among others--Norten and his firm have a rich variety of projects on the drawing boards: Harlem Park, a thirty-four-story mixed-use project in Upper Manhattan; a renovation of Mexico City's Chopo Museum, the gallery of the national university; the Busan Cinema Complex in Korea; the National Laboratory of Genomics for Biodiversity in Guanajuato; and hotels and residential buildings in New York, West Hollywood, and Miami.

此外,重要的竞争,获奖的建议-视觉艺术和表演艺术图书馆,布鲁克林区和古根海姆瓜达拉哈拉,除其他外- no rten和他的公司有一个丰富多样的项目,关于制定议会:哈莱姆公园,一个34 -故事混合用途的项目在上曼哈顿;翻新的墨西哥城市的chopo博物馆,画廊的国立大学;釜山电影复杂,在韩国;国家重点实验室的基因组学与生物多样性在瓜;及酒店业和住宅楼宇在纽约,西好莱坞和迈阿密。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。