查询词典 ecology

Years practice of leaving residues to the cane field after harvested manifested evident effects of soil more and more fertilizing, even if continuous cane cropping. In addition, 180-210 yuan per hectare economic benefit earned, the favorable soil ecology circle was built, of which should be increased output, decreased cost and mineral consumption.

蔗叶还田除了当造可获得180~210元／hm^2的经济效益之外，更重要的还有使土壤环境进入良性的生态循环，既可以获得增产，提高经济效益，降低生产成本，又可以减少对矿物资源的消耗，具有多重的良好社会效益。

Effects of leaving cane residues to the cane field after harvested were studied as the scientific basis and technology to establish Guangxi sugarcane favorable soil ecology circle. By 9 years continuously tracking testing on content change of organic matter, nitrogen, phosphorus and potassium were determined in Guangxi Sugarcane Research Institute Farm field in where cane leave residues were put on the land by mechanical roll crush.

采用连续多年观察和跟踪检测的方法，对广西甘蔗研究所试验农场经过连续9年机械粉碎蔗叶还田后定点检测土壤的有机质含量及氮、磷、钾三大元素含量的变化，研究蔗叶还田对土壤肥力的影响，养分量化变化趋势，对产量的贡献。

His specialties are in carnivore ecology and conservation.

他的专长是在食肉类生态学和保护。

At the same time, we cast back the history of media ecology and analyze its humanism tradition.

同时，追溯了媒介生态学的理论缘起，并分析了研究者在研究过程中所形成的人文主义传统。

The purpose of this dissertation is to draw on ecofeminist theory and criticism to explore Willa Cather's remarkable insights into feminism and ecology in her major works.

生态女性主义的思想特征是，探寻对妇女的统治与对自然的统治之间的联系，强调把女性主义研究与生态保护运动结合起来。

The traditional methods such as morphology and ecology have provided basic tools for identifying the cephalopod structure, in which the way based on statolith aging has become important.

分析认为，头足类种群结构的研究在世界范围内已经取得了很大的进展，传统的形态学和生态学方法为其鉴定提供了基本的手段，其中利用耳石对其生长和产卵季节等进行推算是当前研究的主要手段之一。

In this paper, the current study about the population identification method for cephalopod has been discussed from the aspects of morphology, ecology, biochemistry and molecular genetics in details, the results show that the great progress has been made in the world.

从形态学、生态学、生物化学以及分子遗传学等方面，较为系统地阐述了世界各国在头足类种群鉴定方面的研究现状。

With the study and application gradually elevation and improvement for otolith microchemistry of fish, corresponding study in the statolith of cephalopod become popular. Recently, microchemistry study is one of hot topics in fishery animal, and more and more scientists are interested in it as so much biology and ecology information was showed.

中文摘要：耳石是位于平衡囊内起平衡作用的一对钙化组织，它是头足类的加速度感应器，记录其生命周期内的生物和生态信息。

Landscape pattern analysis based on landscape metrics is a basic content of the research on landscape ecology. More and more researches proved that not only scale effects and the precision of remote sensed data had significant influence on landscape metrics, but also the difference of land use classification would make the change of landscape metrics. However, we still have not found out how land use classification affects landscape metrics and associated influence mechanism.

基于景观格局指数的空间格局分析是当前景观生态学研究的重要基础内容，不仅数据源准确度、尺度效应显著影响景观格局指数，土地利用类型划分也对景观格局指数具有显著影响，但我们对这种影响的总体理解尚很缺乏。

The goals and the principles of conception for a river ecology restoration project are analyzed. The project used as the study case demonstrates that the traditional design method for a water resources project causes the channelization of a river and this leads to numerous adverse effects on the ecological system of a river.

从20世纪70年代开始科学工作者就对基西米河渠道化工程引起生态系统的退化进行了长期的观测研究，同时组织了论证与评估，研究如何采取工程措施和管理措施对于河流生态系统进行修复。

Spanning 322km at its entrance, the Amazon is the widest river in the world. Some of its flat channels are perfect for the phenomenon known by local people as the big roar. In wave after wave, the pororoca — a rare instance of water flowing upstream — pours in, up to 257km an hour, in a wall of water that can reach 7m high.

河口宽达三百二十二公里，亚马逊是世上最宽的河流，部分平坦河道是当地人称为大呼啸的河口涌潮壮观景象，一波波河口涌浪以时速二十五点七公里涌上，形成七公尺高的水墙。

In every piece of Schubert I find death, but behind it I see a heavenly smile.

在舒伯特的每一部作品中，我都能找到死亡的影踪，但在那背后，我却看见了天国里的微笑。