查询词典 wetland

Darning Lake ; Wetland ; Water quality ; Protection and development

大明湖；湿地；水质；保护与发展

In this paper, the degradation of forest and wetland ecosystem were studied .

本文对黄河三角洲森林生态系统退化和湿地生态系统的退化问题进行了系统的研究。

Using first order plug-flow reactor model, BOD5 removal rate constants of the whole wetland system were estimated to be 0.50 1/day (at 24℃) and 0.76 1/day (at 24℃) in the start-up and stable phase, respectively. These values were comparable to or even higher than the value of deoxygenation rate constant, 0.23 1/day (at 20℃), that is normally used in the river water-quality model.

由一阶柱塞流反应器模式(first order plug-flow reactor model)估算人工湿地系统启动阶段及稳定操作阶段的BOD5去除速率常数平均分别为0.50 1/day(24℃)及0.76 1/day(24℃)，相当於或甚至高於一般河川水质自净模式中的BOD5脱氧速率常数的0.232 1/day(20℃)。

There are seven vegetation belts in Helan Mountain-Yinchuan Basin system from west to east,they are mountain forest belt,mountain shrub-grass belt,mountain foot desert grassland belt,oasis belt in diluvial fan plain,oasis belt in alluvial plain,wetland belt near the Yellow river, desert grassland belt in ordos platform.

基于整个山盆系统内山地、平原、黄河、台地上分布的7个自然植被带，提出了山地-平原绿洲—黄河—台地的生产生态范式。

In view of Helan Mountain-Yinchuan basin is a ecological Continuum, it's innovative to put forward the holistic system of Helan Mountain-Yinchuan Basin as suitable scale for landscape management. Based on the fact that Helan Mountain-Yinchuan Basin in a circle composed by deserts and Loess Plateau,and seven vegetation ( the mountain forest belt,mountain shrub-grass belt,mountain foot desert grassland belt,oasis belt in diluvial fan plain,oasis belt in alluvial plain,wetland belt near the Yellow river, desert grassland belt in Obrdos platform) belong to the system, a"mountain-plain oasis-river-platform eco-productive paradigm"is proposed.

基于贺兰山——银川盆地是一个生态连续的复合系统，创新性地提出以整个山盆系统做为景观整体管理的尺度；基于贺兰山——银川盆地处于生态脆弱圈内山地森林带、山地灌草带、山麓荒漠草原带、洪积平原带、黄河冲积平原带、黄河滩涂湿地带、鄂尔多斯台地荒漠草原带等7个植被带的水平和垂直地带性特点，提出了贺兰山——银川盆地系统山地-平原绿洲—黄河—台地的生产生态范式。

And it's also a very important Wetland which getting more and more attention domestically and abroad.

因此，开展黄河三角洲湿地生态补偿研究具有重要的科学价值和应用价值。

So the monitoring and analysis on the dynamic change of wetland resource in Peking Widgeon-lake from 1998 to 2000 and to 2002 were made.

有效地提取出野鸭湖湿地1998年、2000年和2002年的湿地面积，并对其空间变化进行了对比分析。

The wetland is one of the three ecological systems in the world and it is the important part of the Globe.

湿地为全球的三大生态系统之一，是地球生态系统的重要组成部分。

Wetland is one of the most important ecological systems of land, it is not substituted in maintaining and regulating ecology environment quality.

湿地是陆地最重要的生态系统之一，在维护和调节生态环境质量方面具有不可替代的作用。

Wetland is one of the most important ecological systems of land,it is not substituted in maintaining and regulating ecology environment quality.

中文摘要：湿地是陆地最重要的生态系统之一，在维护和调节生态环境质量方面具有不可替代的作用。

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％。