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In this paper,the effects of UVR and CO_2 as well as their interactive impacts on the photosynthesis and growth of Gracilaria lemaneiformis and Gloiopeltis furcata,two economic red algae,were studied.

阳光紫外辐射和CO2浓度变化如何调控海藻的生理学过程是近年来海藻环境生理学研究的焦点之一。

The impacts of intensity of agriculture activities, landuse change and irrigation system change upon underground water were analyzed based on more than 20 years' hydrochemical data.

以贵州普定后寨地下河流域为例，利用20余年的水化学系列资料，分析了农业活动加强、土地利用方式及灌溉系统改变对地下水的影响。

More and more people have been interestedin impacts of climate changes on hydrologic extremes in recent years.

在气候变化对水文极端事件的影响研究方面，近年来已在国际上引起越来越多的人的兴趣。

The life cycle assessment method was used to investigate the environmental impacts of metallic copper production with hydrometallurgical and pyrometallurgical processes.

运用生命周期评价(life cycle assessment，LCA)方法，对用火法、湿法两种方法生产金属铜过程的环境协调性进行了研究，得到了铜生产过程中各工序的环境负荷数据。

By analyzing the main factors of South-to-North Water Diversion 'impacts on Hebei water-received area from aspects of climatology, social-economy, ground water, soil, geological environment and hydrophilous biology, the paper will support decision making for sustainable eco-environment development of Hebei province.

南水北调工程的实施将缓解河北省长期缺水的严重局面，对其生态环境产生显著影响。

The hypogeal insect pests of eucalyptus are a group of special insect pests, having made serious damages to the young plantation. To solve the problem, it is necessary to use chemicals to control the population of those insect pests. The selection of chemicals and the methods of chemical application must be appropriate so as to lighten and minimize the negative impacts of chemicals on the ecological environment.

桉树地下害虫是一类特殊的害虫群体，在造林初期的危害比较严重，此时应针对不同的害虫选用不同的化学药剂来控制其种群密度，施药时要考虑减轻化学药剂对生态环境的不利影响，应采用毒饵诱杀、根部施药等方式。

Observing the incontinuity in electricity price, we study the decision theory of real options under jump diffusion processes. We analyze the impacts of jump factor on the triggering value in optimal timing of investment. We also try to extend the traditional theory of real options based on the changes of market conditions and investment behavior of investor. At last, the numerical methods are discussed.

本文以包含不连续变化因素的电力价格为对象，系统研究跳跃扩散过程下的实物期权决策理论，从理论和现实关系考察不连续变化因素对诱发投资最优时刻触发价值的影响，尝试在结合市场条件动态变化及投资者投资行为的基础上对传统实物期权理论进行扩展，最后分析了实物期权的数值计算方法。

At present, the research about Heregulin-αand itsreceptors ErbB2 and ErbB3 was only the expression of them in mRNA and the impact ofHeregulin-αon the proliferation of mammary epithelial cells and milk proteins expression inculture. There were no results about the expression of Heregulin-αand its receptors in protein andthe impacts of Heregulin-αon the development, lactation and involution of mammary gland. It wasalso not clear about the signal transduction pathway of Heregulin-αin mammary gland.

目前对于乳腺中Heregulin-α及其受体ErbB2和ErbB3的研究仅限于其mRNA水平的表达以及Heregulin-α对培养的乳腺上皮细胞增殖和乳蛋白表达的影响，尚缺乏对乳腺中Heregulin-α及其受体在蛋白质水平上的表达变化规律以及Heregulin-α对乳腺发育、泌乳及退化的作用研究，正常乳腺中Heregulin-α的信号转导途径也不完全清楚。

Using this model, we analyze the impacts of the channel on time variation characteristics within a transmission block which destroy the orthogonality of subcarrier and cause serious intercarrier interference.

应用这个模型，分析了信道在一个传输符号内的时变特性带来的影响，它破坏子载波间的正交性，从而引起严重的子载波间干扰。

We reviewed the parameters relating to clonal growth, such as internodal length, spacer length and branching angle as well as rhizome elongation and branching rates, of seagrass species. These parameters have determinant impacts on the expanding of seagrass patches. However, breeding system may also affect patch sizes.

与克隆生长有关的参数(如节间长度、间隔子长度、分枝角度以及延伸速率和分枝率等)对于海草的克隆生长有着决定性影响，但繁育系统对克隆斑块大小也有较大影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。