生态的

This weed population had a wider niche breadth, the second widest among 12 major weed populations in weed community, and had bigger niche overlap with Stellaria alsine, Alopecurus acquallis, Malachium aquaticum, Poa annua, Polygonum persicaria and Lapsana apogonoides. In rape, wheat or fallow, B.

在杂草群落中，草的生态位宽度居第2位，说明其有潜在的较强的适应环境的能力；草与雀舌草、看麦娘、牛繁缕、早熟禾、春蓼和稻搓菜等杂草种群的生态位重叠较大，与它们的生态要求比较接近。

Firstly, it concludes the slope Biotechnique, analyzes its specialties and applied situation, put forwards a method that choosing the slope Biotechnique mode from texture gradient the slope corrade expense and so on; Secondly, it investigates that technology of vegetation construction from the selecting seed and the helping grow, put forwards a method that selecting the seed.

首先，将山区公路边坡生态防护方式进行了归纳，分析了主要方式的特点和适用范围，提出从质地、坡度、坡面侵蚀情况、费用等方面进行方式的选择；然后，从物种选择、植物助长方面对植被建植技术进行了研究，提出了简易可行的五步选种方法；接着，分别以黄土地区山区、秦岭山区的边坡生态防护为实例进行了说明；最后，从景观的角度探讨了山区公路边坡生态防护的协调，提出了协调原则和具体要求。

Besides, the main characteristics of the ecological literature involves the critic to the economism, the attack to the conquer and the plunder of the nature, the greatest esteem for the whole attitude to the ecology, the expression of an idle world in which human beings can live harmoniously with nature and the description of the returning of the nature.

重新审视人与自然的关系，否定人类中心主义，弘扬生态责任；3。以生态系统的整体利益为最高价值，批判纯经济主义，扦击人类时自然行径的征服、掠夺，推崇整体生态观；4。倡导人和自然和谐共生，表达人类与自然万物和谐相处的理想，描述回归自然的浪漫。

As one new rising mode of the economy development that according to the natural ecosystem material circulation method, circular economy requests the enterprise follow the ecological regulation, reasonable use the natural resources and the environment capacity, develop the economy on the foundation that the material continuously and circularly using, make the economic system brought into in the material circulatory process of the natural ecosystem harmoniously and carry out the economic activity ecotypically.

循环经济作为近些年兴起的按照自然生态物质循环方式进行的经济发展模式，要求企业遵循生态学规律，合理利用自然资源和环境容量，在物质不断循环利用的基础上发展经济，使经济系统和谐地纳入到自然生态系统的物质循环过程中，实现经济活动的生态化。

The niche stagger and low level positive feedback between agricultural ecosystem and stock breeding ecosystem are the essential reason for estrepement, overgrazing and excessive firewood gathering, in other words, the invasion of dry farming into rangeland ecosystem or incompatibly between production style and ecological environment is the root reason.

农、牧生态系统的错位以及农、牧业之间低水平正反馈作用是&滥垦、滥牧、滥樵&的本质，而旱作农业生产方式对草原生态系统的入侵，或者说草原生态系统与作用其上的生产方式的不匹配却是这些问题的最终根源所在。

If we want to achieves this aim, we need to reslove the connotation, content, function and characteristic of enterprise niche optimization, overall explanate the importantance of enterprise niche optimization, rational construct the strategic system of enterprise niche optimization.

这一目标的顺利实现既离不开对企业生态位优化的内涵、内容、职能和特点的系统解析，也离不开对企业生态位优化的重要性的全面阐释，更离不开对企业生态位优化策略体系的合理建构。

In order to improve the environmental quality and protect the ecological safety,governments have taken some measures,But from the overall analysis,we can see that Beijing\'s ecological environment is more frangible,and ecological quality is more lower.Corresponding,the task of preventing and controlling desertification is severely difficult and important.

近年来为保障北京的生态安全和改善环境质量，国家和政府投入了巨大的财力和人力，把风沙防治作为生态环境建设的重要组成部分，开展了一系列的防沙治沙工程，使其生态环境得到一定程度的改善。

Such terms as " ecological geological conditions " and "state of the ecological geological conditions " are determined; approaches, principles and classification of the criteria and indices used for the evaluation of the ecological geological conditions are characterized; geodynamic and geophysical criteria and indices are described.

文中确定了&生态地质条件&及&生态地质条件的现状&等术语的意义；阐述了用于评估生态地质条件的方法、原理以及标准和指标的分类；论述了地球动力学和地球物理学的标准和指

The paper pointed out the essence of forest ecological benefits measuration assessment.

通过12种森林生态效益的资源背景非全程性的&有效面积系数&和&市场逼近系数&，构造出森林生态效益的经济的结构模型，实现森林生态效益的&内部化&和科学化基准。

The paper has provided scientific supports for maintaining riverine ecosystem health and achieving good management.

为探索有效的河流生态系统修复途径和管理策略，维持河流系统的健康，逐步实现水生态系统的良性循环，我国已把河流生态系统的保护与修复列为&十一五&规划的重要内容之一。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失