生态学的

The central fallacy of this argument is that it ignores basic principles of biology and ecology.

这一论点的主要谬误在于忽视了生物学与生态学的基本原理。

Ecology is the study of the nature of the interrelationship between the natural environment and living things.

生态学的本质是研究生物与自然环境相互关系的科学。

The significance of the ecological intellectual history consists in that ecology is a discipline about complexity , stressing relationship , organicism and holism .

生态学的思想史意义在于它是关于复杂性的学科，它强调了关系论，有机论和整体论。

The species composition,density,biomass of phytoplankton and the alternative of dominant species were measured.

因此，对河口浮游植物生态学的研究具有十分重要的理论和实践意义。

The organizing stages that predate entry into an organizational population were studied from an ecological perspective.

本文通过组织生态学的角度，对组织实际运作之前的组织准备阶段加以研究。

With the development of research in eco_physiology of plants in adverse environment, and the need of environmental protection or reconstruction,it is pressingly necessary to enhance the eco-physiological research in desert psammophytes, in depth and systematically.

本文就沙生植物生理生态的研究历史、现状及国内外有关植物抗逆生理生态研究进展作了简要综述，并对今后沙生植物生理生态学的研究方向提出了一些

This thesis is mainly reported on the structural and functional characteristics of protozoan community with relation to water quality.

论文根据生态学的基本理论与方法，系统地论述了内陆水域生态系统中原生动物群落结构和功能特征与水质变化的相互关系。

The study first use ecological-economical classification of rangeland plant ,which can representrangeland vegetation characteristics, purpose and worth.

多样性指数法的生态学的原理，将草地类型多样性从定性描述深入到定量研究。

In the late 1990s, John Seely Brown created the image of knowledge ecologies to accelerate creative learning.

20世纪90年代末，John Seely Brown创立了知识生态学的概念来加速创造性的学习。

These tropical rain forests surround the famed La Selva Biological Station, a center for ecological research.

这些热带雨林环绕著名的拉塞尔瓦生物站，一个中心给生态学的研究。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。