查询词典 salt marsh

First, select four kinds of main risks source from bigly celebrate the main risk in region source, namely the flood, drought, sand-dust weather and petroleum pollution accident, etc. According to the different a request for to habitat, study this 19 kinds of landscapes ecosystem type of the Regional induce for 7 kinds of ecosystems system: Then the marsh of bulrush, lakes and reservoirs , salt alkali wasteland, prairie, island form wood, farmland, town. The difference is proceeded by characteristic according to each type ecosystem to the analysis of four kinds of main risks source, including the certain risk all rate, delimiting the space distribute, analyzing the risk strength to the receptor etc. At proceed the revelation the different from endanger to analyze the inside, this text borrows ecosystem index number that this index sign to reflect primarily habitat the ecosystem meaning of the type of habitat the different from position, with weak an index number to show the destructibility of the habitat, from but compute each ecosystem that is lost by ecosystem system an index number.

首先，从大庆地区主要的风险源中遴选出四种主要的风险源，即洪涝、干旱、沙尘天气和石油污染等；依据不同生物类群对生境的要求，将本研究区域的19种景观生态类型归纳为7种生态系统：即芦苇沼泽、湖泡库渠、盐碱荒地、草甸草原、岛状林、农田、城镇；对四种主要风险源的进行分析，包括确定风险概率，划定空间分布，对风险受体的作用强度分析等；在进行暴露和危害分析中，本文主要借生态指数这一指标来反映不同生境类型的生态意义和地位，以脆弱度指数来体现不同生境的易损性，从而计算出各受体生态系统的生态损失度指数；由于各主要风险物质对风险受体的作用强度是不同的，对形成区域性生态风险的作用大小也有差异，因此本文采用层次分析法对主要生态风险物质进行综合评价，并把判断矩阵排序权值的合理计算问题归为—非线性化问题，并提出用基于遗传算法(GA[5])的层次分析模型进行权重分析；进行风险表征，即综合前面两个阶段的信息，对环境中风险的性质和强度以及风险评价过程中不确定性问题进行分析与描述，并划分出五级生态风险区；最后，根据划分的五级生态风险区的特征，分别提出针对各生态风险区的生态风险管理对策。

The operation of UASB/biological contract oxidation process at normal temperature shows that the process is steady and reliable,marsh gas produced and salt separated can be reclaimed,which can bring good economic and environmental benefits.

常温下采用UASB反应器/生物接触氧化工艺处理豆制品废水的运行情况表明，该工艺处理效果稳定可靠，产生的沼气和分离的盐可回收利用，获得了较好的经济效益和环境效益。

Alterniflora salt marsh presented a trend of increasing gradually from the upper to the lower region of the Yangtze Estuary. 21 species were identified. Assiminea sp., Notomastus latericeus, Cerithidea largillierl, Glauconome chinensi, Gammaridae sp.

2沿着长江河口纵向梯度，互花米草盐沼的大型底栖动物群落的物种数和多样性从上游到下游呈逐渐增多的趋势，丰度主要受到沉积物粒径和互花米草高度的影响。

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。

Camp breed fresh-keeping having garlic , plait garlic , burdock , ginkgo , onion , carrot and white radish , quick-freezes, dehydration , salt marsh.

苍山秦氏食品贸易有限公司主营品种有大蒜、辫蒜、牛蒡、银杏、洋葱、胡萝卜和白萝卜的保鲜、速冻、脱水、盐渍。

Some of those species on the upland and salt marsh areas are Canada Geese, Yellow, Common Yellowthroat and Redstart warblers, Osprey, Oystercatchers, Willets, and Tree Sparrow.

丘陵和盐沼区的一些物种中包括加拿大大雁、黄喉地莺、红尾鸲、鹗、蛎鹬、鹞和树雀。

Most of the nektons sampled in this study were juveniles, suggesting that the newly formed salt marsh was the important nursery habitat for many fishes and crustaceans.

这些游泳动物大多为稚幼个体，表明长江口新生盐沼湿地是许多鱼类和甲壳动物的重要育幼场所。

A common European salt-marsh aster.

欧洲盐碱湿地生长的紫菀。

A salt marsh, spring, pond, or lake.

盐沼，盐泉，盐塘或盐湖

Mangrove forests replace saltmarsh in tropical regions and support a rich fauna.Salt marsh, mudflats and mangroves

红树林在热带区域取代了盐水沼泽，并且支持了丰富的动物区系。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。