查询词典 ecosystem

However, the prediction has a limitation of underestimation and overestimation at low and high temperature or moisture conditions respectively. In order to acquire accurate estimation of soil respiration, main suggestions for further study are to: combine measurement of soil respiration by chamber with carbon flux of ecosystem by eddy covariance, measure synchronously the biotic and abiotic factors, especially pay more attention to the role of modification of biotic factors on the performance of abiotic controllers, make more measurement in typical plant phenology phase and different weather conditions, and strengthen experimental manipulation and modeling.

但是在土壤温度及湿度过高或过低的情况下会出现较大的误差，为了尽量减少土壤呼吸的误差，给出了如下建议：①加强土壤呼吸和生态系统自动碳通量的结合研究；②加强对不同生物和非生物生态环境因子的同步测定，特别重视生物因子对非生物因子的调节和影响；③加强典型物候期和不同季节典型天气土壤呼吸的测定；④加强模拟试验研究和模式研究。

However, the prediction has a limitation of underestimation and overestimation at low and high temperature or moisture conditions respectively. In order to acquire accurate estimation of soil respiration, main suggestions for further study are to: combine measurement of soil respiration by chamber with carbon flux of ecosystem by eddy covariance, measure synchronously the biotic and abiotic factors, especially pay more attention to the role of modification of biotic factors on the performance of abiotic controllers, make more measurement in typical plant phenology phase and different weather conditions, and strengthen experimental manipulation and modeling.

但是在土壤温度及湿度过高或过低的情况下会出现较大的误差，为了尽量减少土壤呼吸的误差，给出了如下建议：①加强土壤呼吸和生态系统自动碳通量的结合研究；②加强对不同生物和非生物生态环境因子的同步则定，特别重视生物因子对非生物因子的调节和影响；③加强典型物候期和不同季节典型天气土壤呼吸的测定；④加强模拟试验研究和模式研究。

Soil respiration is an important component in carbon cycle of the terrestrial ecosystem.

土壤呼吸是陆地生态系统碳循环的重要部分。

Soil respiration is an important component in carbon cycle of the terrestrial ecosystem.

土壤呼吸是陆地生态系统碳循环的重要组成部分。

The productivity of terrestrial ecosystem is a key part of carbon cycle in global change research.

陆地生态系统碳循环是全球变化研究的核心内容之一，而陆地生态系统生产力是碳循环研究中的重要组成部分。

Initially, it had been an experiment conducted by biochemists. They wanted to use asexual reproduction to control the ecosystem of the fly.

最初本是生化学者的一种实验，想以无性生殖控制苍蝇的生态。

Knowledge and skills: understand the core idea of ecosystem, food chain and food web.

知识与技能：理解生态系统的概念及组成，理解食物链和食物网。

The result is a life-and-death test for south China's forest ecosystem.

对南中国的森林生态系统来说，无异于经历了一场生死考验。

The Great Barrier Reef composed of 900 islands stretching for over 2,600 kilometres, the world's largest living structure and an extremely fragile ecosystem listed in World Heritage.

大堡礁含盖的区域长达二千六百公里，区域内多到九百多座岛屿，它是世界上最大的生命体系而且极度的脆弱，目前已被列为世界遗产之一。

Let us cherish and protect an ecosystem for our home, for our survival!

为了我们的家园，为了我们的生存，让我们珍惜和保护生态系统吧！

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％。