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Seedlings operating more than 800 species, mainly breeding necessary to promote various types of garden landscaping to protect two species of the country, and a variety of new Coleus excellent tree species, street trees, flowering shrubs, trees, color categories, Hedge category, ornamental bamboo , flowers, bonsai category, flower category Lei, Flacourtia category by category, type of lawn, flower holiday, such as a total of 23 major categories of nursery stock range and constantly introduce new varieties and products to adapt to many northern and western climate cold, nicotinic soil, soil drought and other adverse natural environment, so best-selling nursery stock throughout the country, such as Beijing, Shanghai, Anhui, Guangdong, Hebei, Shandong, Ningxia, Gansu, Qinghai, Shaanxi, Shanxi, Sichuan, Inner Mongolia, Dalian, Heilongjiang and other places.

经营苗木品种达800余个，主要繁育推广各类园林造景必需的国家二级保护树种，以及各类新优彩叶树种、行道树、花灌木、乔木、色块类、绿篱类、观赏竹类、花卉盆景类、花篱类、刺篱类、地被类、草坪类、节日草花等共达23大类，苗木品种齐全且不断推出新品种，产品多适应北方、西部气候寒冷、烟碱性土壤，土质干旱等恶劣的自然环境，所以苗木畅销全国各地，如北京、上海、安徽、广东、河北、山东、宁夏、甘肃，青海，陕西，山西，四川，内蒙，大连，黑龙江等地。

Worked out a concrete goal for biodiversity conservation in the area, including to maintain and protect the speciality and intactness of the combined ecosystem of rivers and lakes, to protect freshwater resources, to maintain and restore the natural hydrolgical process of the river system of the area, to protect the core species and their habitats efficiently, to protect and restore the typical zonal vegetation (the subtropical evergreen broad-leaved forest), to forbit introducing the invasive species, and to eliminate or control the settled invasive species.

制定了长江中游生物多样性保护的具体目标，即维持和保护江湖复合生态系统的独特性和完整性；保护淡水资源；维持和恢复长江中游水系的自然水文过程；有效保护核心物种及其栖息地；保护和恢复典型的地带性植被；禁止引进入侵性物种，消灭或控制已经定居的入侵性物种。3。

Direction as theory of modren foresty and biotechnology, Based on the Breeding of superior clones, culture medium prescription of tissue culture and photoautotrophic micropropagation for the main species of industrial raw material forest and flower of Fujian were selected, and the sivilcuture model for the main species of industrial raw material forest were comfirmed, and the assistant Forest Management System for the main species of industrial raw material forest and flower of Fujian were established.

以现代林业理论及生物技术为理论指导，在优良无性系选育的基础上，筛选出相思树种等我省工业原料林主要树种及花卉优良品种组织培养、光自养植物微繁技术的培养基配方及轻质专用容器苗基质；确定了环境友好型的工业原料林主要树种栽培模式，建立了相思树种等我省工业原料林辅助经营管理系统。

Besides, there still have never been reported about the situation of wild species originated from China in evolution of strawberry, research on cytogenetics of hybrids from the cross of wild species originated from China with cultivars of Fragaria will also be helpful for understand the relationship between wild species and cultivars and strawberry origin and evolution.

另一方面，原产我国草莓资源在草莓属进化中的作用至今尚未见报道，通过种间杂交及细胞遗传学研究可有助于探明草莓种质间的亲缘关系，为了解草莓的起源和进化提供参考。

Structure index was significantly (P.05) different among three plant species whereas channel index and enrichment index were not. Plant species not only modified abundance of plant-feeding, omnivorous and predatory nematodes, but also percentage of each trophic group. Bacterivorous and fungivorous nematodes were affected most by the differences in plant species.

研究表明在沙地生态系统中，3种植物根际土壤线虫群落的多样性、丰富度、均匀度和线虫总数虽然都存在一定的差异，但不显著；功能多样性指数中结构指数存在显著差异，而通道指数、富集指数不存在显著差异；3种植物对根际土壤线虫群落中各营养类群线虫的比例有显著影响。

Topological structure of the molecular phylogenetic tree, constructed by 16S rRNA gene with Neighbor-Joining method, revealed that all species of Helice from Sesarmidae and two species of Hemigrapsus from Varunidae were clustered into one branch, two species of Sesarma from Sesarmidae were clustered into another one, Grapsus albolineatus from Grapsidae and Plagusia tuberculata from Plagusiidae were formed one absolute branch respectively. The molecular analysis showed that the genus Helice indeed must be considered to be Varunidae, because it formed a monophyletic group with the genus Hemigrapsus yet not the Sesarmidae.

而采用NJ法构建的系统进化树的拓扑结构也显示，所有的厚蟹与属于弓蟹科的肉球近方蟹和绒螯近方蟹聚为一支；属于相手蟹科的2种相手蟹聚为一支；属于方蟹科的白纹方蟹和属于斜纹蟹科的瘤突斜纹蟹又各自成为一支。

Result: Clustering analysis showed that clustering relations were far among different Gryllotalpa species and close among the same species from different regions,and there were close relations among the same species from near regions and between Teleogryllus emmus and G. orientalis .

结果 ：聚类分析表明不同的蝼蛄种间聚类关系较远；虽异地但为同一种的蝼蛄聚类关系较近；相近地理位置所产蝼蛄，其聚类关系较近；混乱品种蟋蟀和东方蝼蛄的聚类关系较近。

Hygrophilous species disappeared partly, and disturbance-resistant species and exotic species expanded their populations in the tourism area;(2) the community structure of bryophytes on the fir trunks in the tourism area was found simpler than that in the undisturbed area; and (3) the trunk at height of 120~180cm was more susceptible to disturbance, but the base was not affected signif icantly by disturbance.

在旅游活动频繁地段，耐荫喜湿物种局部消失，耐干旱抗干扰的植物种群扩大；(2)旅游活动频繁地段树干附生苔藓植物的丰富度、盖度和生物量较未扰动地段小；(3)距地面较高的高度120cm和180cm处受到的干扰强度最大，基部的影响较小。

Based on Hutchinson niche and Guangxia Cao\'s definition, Fuzzy hypervolume niche evolves the theory of fuzzy niche: the niche is a fuzzy hypervolume; the niche of the species is a hypervolume with fuzzy boundary which is formed by the n-dimensional resources (time, space, temperature, humid, trophic,...) necessary for the species\' continuous existing and multiplying; membership of a point in the niche is equivalent to the adaptive degree of the species to the point of the environmental resources.

在Hutchinson生态位和Guangxia Cao的定义的基础上，模糊超体积生态位发展了模糊生态位理论：物种的生态位是可以使物种生存和不断繁殖的n维环境变量(时间、空间、温度、湿度、营养……)所形成的边界模糊的一个n维超体积；隶属函数表明n维资源空间的一个点x属于生态位的程度，也表明物种对环境资源的适应程度。

11local broadleaf Species were planted in west of Guangdong in spring,2003.Early growth resuit showed, species could adapt the climate and soil condition of west Guangdong,2 species include Castanopsis fissa.and Castanopsis hystrix grew best.

2003年在信宜进行了53个阔叶树种生长比较试验，选择其中11个树种进行调查分析，结果表明：11个阔叶树种在粤西地区具有极强的适应性；多个阔叶树种在粤西地区的早期表现良好，生长表现最好的树种是藜蒴和红椎。

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。