生态种

The 9 common used insecticides of cypermethrin 4.5%EC, omethoate 40%EC, chlorpyrifos 40%EC, acetamiprid 3%EC, imidacloprid 10%EC provided excellent control for wheat aphids in fields. The control effects were over 90% at 7 days after spraying. The 9 insecticides had bad effects on aphidius and coccinellidae in three days after spraying and the number of two natural enemies decreased rapidly. But on the 7th day, the number of the two natural enemies increased and there were difference between those treated with imidacloprid, acetamiprid and abamectin and CK. BT had no evident difference compared to the control.

为了明确杀蚜药剂对麦蚜的防治效果、适宜的防治时期、对生态环境安全性和粮食作物食品安全性的影响，对4.5%氯氰菊酯、40%氧化乐果、40%毒死蜱、3%啶虫脒、10%吡虫啉等9种防治麦蚜的药剂进行了筛选，发现各药剂对麦蚜的防效较好，喷药后7d防效均在90%以上。9种农药在喷施后的3d内，对麦蚜的主要天敌蚜茧蜂和瓢虫影响较大，两种天敌数量锐减，但到7d时各处理蚜茧蜂数量均有回升，其中不同剂型的吡虫啉、啶虫脒和鲁植顺克处理的蚜茧蜂数量同对照相差不大。

The Eco-physiological Characteristics of Dominant SpeciesArtemisia halodendron, Artemisia scoparia and Cenchrus calyculatus were the dominant species in three types of vegetation.

优势植物种生理生态特性三种植被类型的优势种分别为差不嘎蒿、黄蒿和光梗蒺藜草。

On the basis of examination of more than 2000 specimens from 15 herbaria worldwide, the characters features of species,phonological phase,ecoloigical habit and the relation to close species were analyzed, recorded and described, the disputed species were compared, measured and counted in detail, the quantitative analysis to different characters was done through dot-map, the variation pattern of major morphology characters was analyzed and their significance for a better delimitation of the species was evaluated.

查阅或借阅国内外17个标本馆近2000份标本，描述了每个种的性状特征、物候期、生态习性及其与近缘种的关系，确定性状的极性，对有争议种的形态性状进行详细的测量和比较，用散点图对个别性状作定量研究，分析了主要外部形态学性状的变异式样、变异幅度及其对划定物种范围的价值。

The results showed that 37 species of Physciaceae from Xinjiang covered 6 geographical elements and 6 ecological forms.

结果表明，分布在新疆的蜈蚣衣科地衣共有37种，分属6种地理成分和6种生态类型，主要分布在新疆的天山和阿勒泰山。

The results show that the construction of the railway has an obvious effect on the warm steppe,but the characteristics of community,such as the coverage,ecological dominance and species richness of communities have been improved after its natural restoration,and some species,such as Elymus nutans,Aconitum gymnandrum and Thermopsis lanceolata,play an important role in the restoration communities.An assistant measure taken by human beings will benefit to the restoration.There is no any evidence of exotic invading plants in the restoration of the warm steppe in the study area.

结果显示，青藏铁路修筑过程对铁路两侧一定区域的温性草原有较大影响，但随着受影响区域植被的自然恢复，群落盖度、生态优势度和物种多样性等反应群落特征的指标都有一定程度的改善，一些在原生植被中很少出现或伴生种在恢复后的群落中有可能成为群落的优势种或建群种，如露蕊乌头和鹅绒委陵菜等；人为辅助措施将有利于受损植被的恢复；修筑铁路过程中受到影响的温性草原其恢复过程中尚未出现外来入侵植物。

These results can shed lights on revealing the mechanisms of plant's adaptation to xeric conditions, as well as the effects of anthropogenic disturbances on the local extinction of native species, and/or invasion of shrubs.

我们的研究结果从植物种、功能群和群落三个层次进一步揭示了植物对干旱生境的适应机制，并初步阐明了人类干扰特别是过度放牧对草原群落建群种和优势种的生态替代或/和灌丛入侵的影响。

In order to control pests and maintain an excellent ecological environment, the occurrence and management of pests were studied in this paper by searching the infromation in the office of Baiyunshan Scenic Spot, on the NCBI and Internet. The results were as follows: There were 129 species of insects from 12 orders, 67 families and 114 genuses in Baiyunshan Scenic Spot, and 28 species of forestry pests and 33 species of natural enemy were includied.

为了有效控制害虫为害，保障白云山风景区的优良生态环境，本研究查阅了白云山风景区内部以及NCBI和互联网上的资料，结合白云山风景区园林害虫发生和危害的具体情况，制定了综合防治策略，主要结果如下：白云山风景区昆虫总共有12 目67 科114 属129种，其中，有林木害虫28 种，天敌昆虫33 种。

Among the special nine pollutants, however, eight of them, including Hexachlorobenzene, N-Nitrosodi-N-propylamine, 3,3-dichlorobenzidine, 2,4,6-trichlorophenol, 2,3,4,5,6-pentachlorophenol, indeno (1,2,3-cd) pyrene, 4,4'-DDT and Heptachlor were in need of concern while another chemical: dibenzanthracene be of special concern. The sources of these chemicals were discussed and some control strategies were suggested based on the risk assessment.

结果表明，有18种有机污染物超过了USEPA的标准浓度要求，其中9种物质具有一定的生态风险，其中六氯苯、N-亚硝基二正丙胺、3，3'-二氯联苯胺、2，4，6-三氯酚、五氯酚、茚并(1，2，3-cd)芘、4，4'-滴滴涕、七氯在内的8种化合物具有一定的风险，而多环芳烃二苯并蒽需要引起更高警惕；在此基础上探讨了这些化合物的来源及作用，并提出了相应的防治建议。

On the basis of ecologic balance, developing the complex biological preparation as a goal, we first explored two compatibly antagonists to control the leaf disease of forest plant and hoped this two antagonistic fungi could play a cooperative role in controlling the pine needle blight. The main research results were as follows: 1 , The dual test showed the two antagonistic fungi(Gliocladiutm virens ,Bacillus firmus)had some differences to Pestalotia funerea in the inhibition mode. The role of G virens to the P.funerea, mainly displayed the competition in the nutrition and space, but the B. firmus had the distinct inhibition zone to the P.

本研究以生态平衡为理论基础，开发复合生物制剂为目标，首次将两种亲和拮抗菌用于森林植物叶部病害，以期两种复合拮抗菌在松属植物赤枯病防治中发挥协同作用，其主要研究结果如下： 1、对峙培养显示两种颉抗菌(Gliocladium virens、Bacillus firmus)对赤枯病菌的抗生方式有一些差异。G.virens对P.funerea的作用，主要表现为营养与空间上的竞争，无抑菌圈；而B.firmus对P.funerea有明显的抑菌圈(平均6mm)，对峙培养4-5d后菌丝逐稀疏、干枯、变黄。

In this paper,the sprouting law of several broad leaf species and 3 types of typical artificial and natural mixture pattens are summarized,relevant techniques are presented,and the functions of these mixed forests in forest ecological system are briefly appraised.

在掌握了几种阔叶树种萌芽与根蘖规律的前提下，总结出三种典型&人天混&配植模式，并提出了相应的技术措施，对这几种混交林在森林生态系统中的作用作了简要评价。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。