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- tree population dynamics 树木种群动力学
- Insect population dynamics has always received much attention. 昆虫种群动态的研究一直受到重视。
- Population Dynamics Prediction Techniques of Lymantria dispar L. 舞毒蛾种群动态测报技术。
- A Study on the Population Dynamics of Rhopalosiphum padi on Wheat. 小麦禾缢管蚜种群动态的研究
- Age structure is a foundational base to study the population dynamics. 年龄结构是研究种群动态的重要基础。
- The result showed: as for pine tree population, most infected pines are less DBH class in the forest. 结果表明:从松树种群角度而言,大部分受害松树是林分中径级较小的林木;
- He used aphid fecundity data to elucidate the theoretical effects of antibiosis on insect population dynamics. 他利用蚜虫繁殖力资料说明了抗生作用对虫口动态的理论效应。
- A spatiotemporal model for studying insect population dynamics in large-scale system. 一类大尺度系统中昆虫种群时空动态模拟方法。
- Impacts of Climate Changes on Elk Population Dynamics in Rocky Mountain National Park, Colorado, U.S.A. 气候变化对在美国科罗拉多州落基山国家公园内Elk人口流动的影响。
- The species composition, importance values of tree population, species diversity and spatial structure of evergreen broad leaved forest community in Bijia mountain of Longyan, Fujian, were analysed. 分析了福建省龙岩市笔架山常绿阔叶林群落的种类组成、乔木种群的重要值、物种多样性、水平结构和垂直结构特征。
- By quantifying these causes the population dynamics of the insect would be better understood. 通过对这些原因进行定量,可以更好地了解昆虫的种群动态。
- Study on the population dynamics of aphids and predatory natural enemies in Bupleurum chinese Dc. 柴胡苗期蚜虫及捕食性天敌种群消长动态。
- It is suggested that 450W(GGC)light be applied in monitoring population dynamics of JPS and PWN after further test. 因此利用450W高压汞灯监测松墨天牛及松材线虫种群有应用价值,有待进一步试验完善。
- Object is applied is populated dynamically. 对象应用到的节点。
- Cutting alfalfa belt could affect the population dynamics of ladybirds, spiders and lacewings. 刈割苜蓿带对棉田棉蚜及瓢虫类、蜘蛛类和草蛉类天敌的数量动态影响较大。
- The microbial population dynamics were observed and identified in the three stages of fluidized-bed ecosystem. 因此,在三段式流体化床的环境中可观察到微生物的动态变化和微生物族群的鑑定。
- That is to say,IPC is the multiple caus-ing change of population dynamic trend. 控制指数值即为引起种群数量发展趋势发生改变的倍数。
- Concepts such as population dynamics, food chains, and consumers and producers all have counterparts on the Web. 族群动力学、食物链以及消费者与生产者等概念,在资讯网全都有相对应的部份。
- As the car hit the tree he was snot out. 汽车扭在村上,他被猛地摔了出来。
- In order to increase solar energy utilization ratio in mulberry gardens, mulberrytrees of different varieties were planted alternately to regulate the growth relationshipbetween individual trees and tree population,between arboreous and bush mulberries. 为提高桑园空间与光能利用率,在桑园采用不同的桑树品种搭配、进行高低立体交叉栽植,合理调整桑树单株与群体、乔木桑与灌木桑之间的生长关系;