查询词典 ecosystems

Global warming threatens both the ecosystems as well as the economic and social development of the country.

全球变暖既威胁着中国的生态环境也对国家的经济发展也产生不利影响。

In recent years, with the further study of ecosystem service , the value assessment of ecosystem service is becoming more and more important. People study all kinds of service of function of ecosystems and valuating methods by different ways.

近年来，生态系统服务功能价值评估越来越受到人们的重视，人们开始从不同角度探讨生态系统的各种服务功能和定量评价方法，生态系统服务功能价值评估目前已成为该领域研究的前沿课题。

C released ratio from sowing and transplanting rice ecosystems were 58\^0%～75\^0%,most of which was in form of volatilizing 14 C, a part of which existed in soil, and only a small part was absorbed by rice seedlings and inhibited the growth.

在 1、2、3、4、6μg/ g土14C BR0 中，于直播水稻和移栽苗(4μg/ g土14C BR0 )分别经 3 9d和 2 9d后，14C释出率分别达 75 0 %、68 7%、62 6%、5 8 0 %及 70 4 %。其中绝大部分以挥发性态14C逸走，其次存留在土壤中，少量被秧苗吸收，并能抑制秧苗的发育生长。

On a larger scale, food webs and ecosystems can be represented as networks of species.

在更大的尺度上，食物链和生态系统可以看作由物种所构成的网络。

The Ethiopian amber forest grew in a time when diversified and changed the terrestrial ecosystems, Schmidt wrote in an email.

施密特在电子邮件中写道：&发现琥珀化石的埃塞俄比亚森林生长于一个开花树种扩大和改变陆地生态系统的时期。&

A case study was conducted of the section of the Ancient Great Canal between Jingkou Lock and Yingjiang Bridge in Zhenjiang. Following the multi-natural-river conception, an integrative assessment index system was established, reflecting characteristics, functions and socio-environmental effects of river ecosystems.

以镇江古运河京口闸－迎江桥段生态河道建设为例，以多自然河道理念为指导，建立反映河道生态系统特征、生态系统功能、社会环境效应的综合评价指标体系。

According to the situation of plants scarce on soil refuse dump of coal mine,and extremely slow native settlement process of vegetation and ecosystems,soil and the coal-fly-ash have been analysed for the physical and chemical nature.

针对煤矿排土场上植物稀少、植被的自然定居和生态系统的原生演替过程极其缓慢的现状，采用实验分析的方法，初步探索了排土场土壤和粉煤灰的理化性质。

Whereas, the orders in variation of total NPP in various ecosystems were the following: crop, grass, deciduous forest and evergreen needleleaf forest.

而影响全国陆地生态系统年际NPP总量变化最大的是耕地、草地以及落叶阔叶林与常绿针叶林。

Friends of the Everglades and its determined founder have successfully battled the development of airstrips and additional canals that would divert the natural flow of rain through the wetlands,and threaten the very existence of one of nature's great ecosystems.

&大沼泽地之友&与其坚定的创立者一道，成功地阻止了在这里修建临时机场和增开运河的计划，因为那样会改变流经湿地的雨水的自然流向，并威胁到这个大生态系统的生存。

Friends of the Everglades and its determined founder have successfully battled the development of airstrips and additional canals that would divert the natural flow of rain through the wetlands,and threaten the very existence of one of nature's great ecosystems.

&大沼泽地之友&与其坚定的创立者一道，成功地阻止了在这里修建临时机场和增开运河的计划，因为那样会改变流经湿地 d小的雨水的自然流向，并威胁到这个大生北美枫是态系统来e 的生存。

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％。