查询词典 ecosystems

Three of the main environmental factors that vary across deep-sea ecosystems are temperature, water depth and carbon inflow from the photic zone.

三个主要环境因素：在跨深海域变化的生态环境里，温度，水深和从头光层来的碳的流入。

The data showed that Phragmites communis is a plant with high light use efficiency so its reasonable exploitation can play a great role in stabilizing wetland ecosystems.

数据显示，芦苇是一种高光效阳性植物，对于其资源的合理利用及其对湿地生态系统的稳定意义重大。

The scientists note that "the edges of the tropical belt are the outer boundaries of the subtropical dry zones and their poleward shift could lead to fundamental shifts in ecosystems and human settlements."

科学家们还注意到，&温暖带的边缘位于副热带干燥地区之外，并且两极的改变将导致人类居住区和整个生态系统的根本改变。&

Restoring natural areas to presettlement conditions would create healthy ecosystems within the Chicago metropolitan area.

在芝加哥都会区会造成健康的生态系统

Ecosystem management is the main stream of natural resource management now. The focused works of EM are collecting spatial data by remote sensing, raser surveyors and permanent sampling plots which standard for each ecosystems. Experimental management and monitoring would proceed to do adaptive management for accomplishing the management objectives of forest health, productivity and biodiversity maintaining.

生态系经营是目前自然资源经营的主，而其工作的重点在於用遥航测及卫星定位系统、射测仪等测仪器收集资，经取样、选址具有代表性的长期生态研究区或永久样区，进试验性经营、监测与适应经营调整，以达到森健康、生产提高、多样性回的生态系经营目标。

Ruppia maritime is an important elementary producer in the inshore ecosystem. Understanding its ecological characteristics is significant to restoring the degenerated and polluted coastal wetland ecosystems.

川蔓藻是近海生态系统中重要的初级生产者，了解它的生态学特征对于河口海岸带的生态修复具有重要意义。

Shrubland is the typical degraded ecosystems in the Three Gorges Region.

灌丛是三峡地区典型的退化生态系统类型。

The Three Gorges Region ; Degraded ecosystems ; Shrubland ; Biomass ; Cutting

三峡地区；退化生态系统；灌丛；生物量；砍伐

The external morphology and microstructure of the compound eye under light and dark adaptation of the dominant predatory enemies Solenopsis invicta Buren in agriculture ecosystems and Public safety were investigated by means of scanning electron microdcope and histological method.

本文采用扫描电镜技术和组织学方法研究了严重危害农业生态环境和公共安全的入侵生物—红火蚁Solenopsis invicta Buren不同品级复眼的外部形态、显微结构及其明暗条件对该内部显微结构的影响，主要研究结果如下： 1。

Salt marsh has now been extensively concerned for its important role in estuarine and coastal ecosystems, and the rapid expanding of invaded Spartina alterniflora is also regarded as a serious problem in the Changjiang Estuary and even all the coastal region of southeast China.

盐沼湿地因其在河口及沿岸水域生态系统中的重要地位而被普遍关注，近年来互花米草在长江口乃至整个东南沿海地区的入侵及迅速蔓延更是引起了广泛重视。

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％。