生态种的
- 与 生态种的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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It is one kind of new language version, one kind of new literature organism's habits!
它是一种新的语言文本,一种文学的新生态。
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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。
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Paecilomyces cateniannulatus,an entomogenous fungus and one of the predominant species of the fungi in a Masson s pine plantation ecosystem,plays an important role on forest pest control.
中文摘要:环链拟青霉是一种虫生真菌,是皖南宣城敬亭山马尾松林生态系中的优势种,在松林控制害虫起到了至关重要的作用。
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Here lives the biggest bird in the world ostrich; the second smallest bird in the world Red Munia; the bird flying the highest Swan; Tufted Duck and so on.
在这由近千种不同植物美化而成的466亩生态空间里,展示着300余种30000余只各式热带飞禽,涵盖了海南鸟类的绝大多数。
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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。
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The dissertation puts forward that culture capital as a sort of non-economic element is able to produce tremendous economic value and straightway impel enterprise"s sustainable development, in which main content is that system culture, innovative inspirits, inter-human trust and ecological ethics is the key and core element affecting enterprise development after adopting other subjects" research fruits.
论文提出和界定了文化资本的范畴,认为企业制度文化、企业家的创新精神、企业中的人际信任和企业生态伦理是影响企业发展的深层次因素和核心要素;论文主要吸收和运用了经济增长学说中的文化因素影响论、管理学中的企业文化理论、社会文化学中的人际信任理论和环境经济学中的生态伦理论、制度经济学中的非正式制度理论等的最新研究成果,提出文化资本作为一种非经济因素,也可以创造巨大的经济价值,并直接推动着企业的持续发展。
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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。
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At a certain range, habitat loss and its spatial structure can benefit the control of the epidemic disease, which indicates the possibility of using human disturbance in habitat as a potential epidemic-control method in conservation.(6) Not only the quantity of habitat loss but also the spatial correlations of patch types caused by nonrandom habitat loss affect the invasion and transmission of disease. More fragmented landscape (high amount of habitat loss, low clustering of lost patches) hinders the parasitic infection, which also indicates that whether the spatial heterogeneity benefits or hinders the invasion is dependent on the considered ecological process.(7) Two components of the spatial heterogeneity (the amount and spatial autocorrelation of the lost habitat) form a trade-off in determining the host-parasite dynamics.(8) Within a certain range of habitat loss, host can counterbalance the positive and negative effects, and shows a rising tendency.(9) The epidemic is more likely to break out in the prey-predator system if only a small amount of habitat loss.(10) A highly aggregated distribution of species is a common behavioral strategy when dealing with habitat loss or other environmental stresses.(11) The parasite-host/prey-predator eco-epidemiological systems have the similar mechanism with the intraguild predation systems, and the predator acts as the intraguild predation, the infected prey acts as intraguild prey, and the susceptible prey acts as shared resource.(12) Species at the highest trophic level are no longer affected the most by habitat loss, which depend not only on the biological mechanism but also on the external environmental disturbances.
随着邻体数目的增加,病毒的感染力度变得更大而且在空间上形成聚集的波形;(5)生境破坏及其空间结构在一定范围内有利于疾病的控制,这暗示人为对生境的干扰可作为疾病控制的一个潜在方法;(6)生境破坏的数量以及不同类型生境的空间分布格局都显著地影响了寄生病毒的入侵和传播,生境破碎化程度越高(高丧失斑块的数量或低聚集程度),将越有害于病毒的入侵和传播,这暗示了空间异质性是否有益于物种的入侵依赖于所考虑的生态过程;(7)由生境破坏引起的空间异质性的两个组分之间存在负偶联关系trade-off(8在适度的生境破坏范围内,宿主种群能够平衡生境破坏带来的正负两种效应并呈现增长趋势;(9)在捕食-食饵系统中,寄生感染病毒极有可能在生境破坏量较低时爆发;(10)物种在面临生境破坏或者其它环境压力时表现出更高的聚集分布策略;(11)寄生-宿主/食饵-捕食生态传染病系统与共位捕食食物网结构具有相似的生物机制,其中捕食者扮演共位捕食者的角色,已感染食饵作为共位食饵,易感染食饵扮作共同消耗的资源;(12)位于最高营养级水平的种群对生境破坏的响应不一定是最敏感的,这不仅依赖于内在的生物机制同时也依赖于外在的环境干扰。
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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。
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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。
- 推荐网络例句
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She gently rebuff ed him, but agreed that they could be friends
她婉言拒绝了,但同意作为朋友相处。
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If in the penal farm, you were sure to be criticized.
要是在劳改农场,你等着挨绳子吧!
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Several theories about reigniting and extinguishing of the arc have been refered.
本文综合考虑了几种电弧重燃和熄灭理论。