查询词典 ecosystem

This is a serious warning for China's ecosystem crisis.

这是对中国生态危机发出的严重警告。

The main fi ndings were i copper was strongly bound to organic layer and seemed to be the main pollutant in the ecosystem while zinc was the most mobile element and did not accumulate to any specifi c part of the ecosystem, ii the forest mosses and epiphytic lichens were the most sensitive plant species and the seedlings of the vascular plants that had survived near the smelter were absent, iii there was a highly resistant soil decomposer community near the smelter although the activity of the soil animals and microbiota was low and their community structure altered, iv many insect species also suffered from pollution although the adverse effects caused by forest pests increased with pollutant load, v the low survival rate and breeding success of hole-nesting passerines near the smelter was caused by habitat changes and the quality of food, vi the adverse effects seem to be to some extent reversible after decreased pollutant load or remediation actions.

主要fi ndings是i铜强烈一定到有机层数、并且似乎是主要污染物在生态系、当锌是最流动的元素，并且没有积累对生态系时的任何specifi c零件， ii森林青苔和附生植物地衣是含羞草种类，并且在精炼工附近生存了是缺席维管束植物的幼木， iii有一个高度抗性土壤decomposer社区在精炼工附近、虽然土壤动物和microbiota的活动是低的、并且他们的修改过的社区结构、iv许多昆虫种类也遭受污染、虽然森林造成的不利影响虫增加了与污染物装载、v孔嵌套雀形目鸟的低生存率和繁殖的成功在精炼工附近是由栖所变动造成的，并且食物的质量， vi不利影响似乎在某种程度上是双面布料在减少的污染物装载或治疗行动以后。

The value of wetland ecosystem service function is decreasing in Beijing.Disturbance has overed the capacity that wetland ecosystem can support nearby ten years.

北京湿地生态系统服务功能具有重要的经济价值，其支持、调节、文化、产品四类核心功能总价值达1000亿元人民币。4。

The research results showed: spruce-fir mixed uneven-aged ecosystem managed in intensive method, its productive power and dominance were developed, the economic needs were met, environment and social effect were assured, so sustainable management of stands-level forest ecosystem were realized.

结果表明，经过集约经营的云冷杉针阔混交林，其生态系统生产力和优势得以最充分的发挥，既满足经济产出的要求，又保证了生态环境和社会效益，从而实现了林分级别上森林生态系统的可持续经营。

Based on stands-level forest ecosystem, referring intensive management method of natural mixed uneven-aged stands—control method, the mixed stands of coniferous and broad-leaved trees, in which spruce and fir are dominant species, were studied in this thesis;and explored sustainable management model on forest ecosystem level about economy, ecological environment and society.

本文以林分级别森林生态系统为基础，借鉴了天然异龄林集约经营方法—检查法，对长白山过伐林区以云冷杉为主的针阔混交林的森林可持续经营进行了研究，并从经济、生态环境和社会3个方面探索了森林生态系统尺度上的可持续经营模式。

It consists of double meaning: one is the land ecosystem self-security, another is land ecosystem security to human.

它包括两层基本涵义，一层涵义是土地生态系统自身的安全；第二层涵义是土地生态系统对人类的安全。

The water and heat balance of desert ecosystem is a key point of climate and micro-climate formation and its changing mechanism, and it is important to keep the current ecosystems steady and to recover the retrograde ecosystems, especially desert ecosystem.

荒漠生态系统水热平衡问题是研究气候和小气候形成及其变化机制的重要问题，也是维持现有生态系统平衡稳定以及退化生态系统恢复的关键，而且对防治荒漠化起着重要作用。

Neral contracts enterprises with indistinct and synthetical judgment method, analyze the main work of the general contracts enterprises with the theory of PAEI; the developing stage, build the value sharing chain of general contracts enterprises, and value sharing system, bring forward that the general contract enterprises must pay attention to develop the core value chain and the no core value chain; the leading stage, introduce the key competitiveness of the business ecosystem, analyze general contracts enterprises'the value of core value chain and enhance the key competitiveness of enterprises; the renewal stage, analyze update mode of business ecosystem and development trend of general contracts enterprises.

开拓阶段，以模糊综合评价法来选择总承包企业的伙伴企业，并且以PAEI理论分析了此阶段工程总成承包企业的工作重点；发展阶段，构建了工程总承包企业的价值共享树，建立价值共享体系，并且提出总承包企业要注意发展核心价值链和非核心价值链；领导阶段，介绍了商业生态系统的核心竞争力，对总承包企业的核心价值链进行价值分析，提高企业的核心竞争力；更新阶段，分析商业生态系统的更新方式和工程总承包的发展趋势。

With an emphasis on the establishment of the coastal ecosystem safety indicator system,this paper applies the conceptual model of Driving force-State-Response to build up the framework of the coastal ecosystem safety indicator system,based on China's coastal condition,through the foll...

本文以构建海岸带生态安全指标体系为研究目的，通过整体性与海陆结合、敏感性与脆弱生态系统、科学性与可操作性的指标选取原则，采用&压力状态响应&概念模型，结合我国目前海岸带面临的生态环境问题，提出符合我国的海岸带生态安全指标体系的基本框架。

At 8 km distance the ecosystem began to approximate an undisturbed ecosystem where only slight changes in the understorey vegetation were observed.

在8公里距离生态系开始接近未受干扰的生态系，在understorey植被上的仅轻微的变化被观察。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。