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沼泽化

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If you live in an area with acid soil, whether it is bog-like, woodland or just an area where there is soft water which will help acidify soil, these plants will probably grow well for you.

假如你生活的地区有酸性土壤,不论它是沼泽、林地,还是这个地方有软水能帮助土壤酸化,这些喜酸植物会生长得很好。

Okefenokee is an Anglicization of an American Indian word meaning "trembling earth" and describes the soft, spongy peat moss that gives an unstable feel to the swamp's drier areas.

Okefenokee是一个英语化的美洲印第安人词语,意为"颤抖的大地",它用来形容那些让沼泽的相对干燥的区域令人觉得不坚实的柔软的海绵般的泥煤苔。

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。

Because of a high groundwater level and a strong erosion action, the coal formed in a low peat swamp is great in gelatification index and in groundwa ter index, which are in a negative correlation to the ratio of clean coal recove ry. While for the high peat swamp, IG and IGW are small, corresponding to a high ratio of clean coal recovery.

低位泥炭沼泽由于潜水位较高,水流对泥炭沼泽表面的改造和冲刷作用较强,形成的煤层具有较高的凝胶化指数和地下水流动指数,并且与精煤产率呈负相关,煤中粘土矿物和黄铁矿难以洗选;高位泥炭沼泽形成的煤层具有较低的凝胶化指数和地下水流动指数,泥炭积累速度较快,其精煤的产率较高。

Of course, when stiff and painful joints are already bogging you down, the thought of walking around the block or swimming a few laps might make you hesitate.

当然,僵硬,关节疼痛已经沼泽化你下来,想到走在游泳块或数圈,可能使你犹豫。

It is the rivers and lakes that have bred up people of Wuhan for generations. Unfortunately, urban lakes have fallen into an awkward situation with the rapid development of urbanization and sharp increase of urban population in recently years. The numbers and areas of urban lake have sharply decreased; some urban lakes have deposited; some became swamp. Additionally, soil erosion caused by human factors has shoaled lakes and reduced reservoir capacity. Trade-waste sewage and domestic sewage flow into lakes, which has caused the deterioration of water quality.

然而随着近年来城市开发的力度不断加大,城市人口的快速增长,城市湖泊陷入了十分难堪的地步:湖泊数量锐减;水面面积急剧缩小;湖泊淤积严重,部分湖泊逐渐沼泽化,再加上人为因素造成的水土流失,使湖泊变浅,库容量降低;生产生活污水的大量排放使湖泊水质恶化。

It studies prevention of soil erosion and land desertification, improvement of salinized soil, swamping soil, and degraded soil, restoration of contaminated soil, protection and utilization of arable land, and intensive use of land.

研究内容包括水蚀、沙化土壤的防治,盐渍化、沼泽化、贫瘠化土壤的改良,污染土壤的修复,耕地保护与利用,以及土地的集约节约利用等。

The corresponding geological, hydrogeological and professional models are set up by using the immersion sense, interaction with computer as well as realtime forecast function of VRT so that hydrogeological conditions, groundwater flow, groundwater quality , environmental geological problems such as land subsidence, sea water intrusion, soil desertification, soil salinizationalkalization, swampiness and the development tendency of cone of depression caused by groundwater exploitation, can be represented in the virtual environment.

利用虚拟现实技术沉浸感、与计算机的交互功能和实时表现功能,建立相关的地质、水文地质模型和专业模型,进而实现对含水层结构、地下水流、地下水质和环境地质问题(例如地面沉降、海水入侵、土壤沙漠化、盐渍化、沼泽化及区域降落漏斗扩展趋势)的虚拟表达。

These abnormal phenomena were brought by the seepages in the body and foundation of dam.

陡坡水库存在大坝质量差、坝体发育大量裂缝、背水坡出现散浸现象、坝后沼泽化并形成一上升泉以及排水渠和鱼池有絮状析出物、渗漏量增大等问题,这些异常现象都是由坝体及坝基渗流引起的。

During the paleo-geography evolution, inland lacustrine basin began to form, and the two delta skirt in east and west lakeshore are primary formed in Chang 10, lacustrine basin subsidized quickly, lake district enlarged rapidly and destructive delta are developed in Chang 9, delta are more developed in Chang 8, lakeshore line move outward at large range, turbidite developed well near west lakeshore, delta range is decreased in east lakeshore in Chang 7, features of lacustrine basin are changed remarkably, deep lake and half deep lake area is decreased greatly, while delta sedimentary system is developed at its most in Chang 6, framewok is inherited better, but delta′s construction is slowed and is swamping at large scale in Chang 4+5, lacustrine basin began to be silting, shrinking and dying out, and riverway gradually developed well since Chang 3, distributary riverway developed best in Chang 2, because of imbalance subsidence, subsidence center is formed in east Zichang area and in which lacustrine turbidite is sedimented.

在古地理演化过程中,长10期内陆湖盆开始形成,东西两岸两大三角洲裙初步形成;长9期湖盆快速下沉,湖区迅速扩大,三角洲多为破坏性的;长8期三角洲进一步发育;长7期湖岸线大幅度向外推移,西部浊积岩发育,东部三角洲面积明显减小;长6期湖盆面貌发生了显著的变化,深湖-半深湖面积大大减少,三角洲沉积体系极为发育;长4+5期继承了长6的沉积格局,三角洲建设进程减慢,三角洲大面积沼泽化;从长3期湖盆开始逐步淤浅、萎缩、消亡,河道逐渐发育;长2期分流河道发育;长1期由于差异沉降,在东部子长一带形成沉降中心,沉积了湖相浊积岩。

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