- 更多网络例句与沼泽化相关的网络例句 [注:此内容来源于网络,仅供参考]
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Problems in China's land ecology security in China involve soil erosion, soil pollution, soil desertification, salinization, alkalin-ization, soil depauperization, etc.
我国土地生态安全方面的主要问题有水土流失、土壤污染、土地沙漠化、盐碱化、潜育化、沼泽化、贫瘠化等,围绕这些土地生态问题,我国已经制订了《环境保护法》和《土地管理法》等综合性法律,又制订了有关的专项法规。
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Studies showed that there were two typical combinations of the facies in the filling sedimentary sequence of the epicontinental basin, wherein one was the depositional diastem developed between the facies, which was a discontinuous combination of the depositional facies with continuous time sequence, namely the exposed sediments, the tidal flat swamp and the peat swamp, and the shallow marine sediments appeared from bottom to top; and the other was the continuous sequence with gradually evolved sedimentary environment, in which it was a continuous process that the tidal flat swamp turned gradually into the peat swamp.
研究表明:陆表海盆地充填沉积序列中有两种较为典型的相组合,一是相与相间发育沉积间断面,为不连续沉积相组合,但在时间序列上是连续的,即自下而上依次为暴露沉积、潮坪沼泽及泥炭沼泽、浅海沉积;第二种序列是连续相序,盆地的环境演化是渐变的,潮坪沼泽化逐渐泥炭沼泽化是一个连续过程。
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After nest found, the dominating ecological factors with definite distance to nest tree (less than 10 meters) including tree species, tree height, habitat type of nesting-tree, nest position, the type of nesting tree branch, nest type, the type of nest-site, the viability status of tree and branch was described and measured. Geography coordinates (latitude-longitude) was converted into orthogonal coordinates, and add to Arcview3.2 as shape-file, and measured the distance between nest and the habitat type including double-line river, lake, seasonal lake, shallow mire, deep water mire, meadow mire, farmland, sparse forest, forest marsh, the boundary of Nature Reserve and road.
将调查所获得的东方白鹳巢址坐标转换成平面直角坐标,并将巢位点作为Arcview3.2中的矢量图层加入到已经矢量化的洪河保护区生境类型图中,运用Arcview3.2的距离量算功能,量算出每个巢距各生境类型的距离,包括双线河、湖泊、时令湖、轻沼泽、重沼泽、沼泽化草甸、旱田、疏林和森林沼泽,以及距保护区边界和公路的距离。
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The process of terrestrialization of Hanlongwan lake mainly come through some phases as follows:(1)the phases of the lake's formation (3,300-2,250a BP);(2)the phases of lake's development (2,250-2,100a BP);(3)the beginning of terrestrial of Hanlongwan
旱龙湾湖泊沼泽化过程大致经历了以下阶段:(1)旱龙湾火口湖湖泊形成阶段(3,300-2,250 aBP);(2)旱龙湾湖泊发育阶段(2,250-2,100 aBP);(3)旱龙湾湖泊沼泽化伊始(2,100-1,500 aBP);(4)旱龙湾沼泽化扩大发育阶段(1,500-750 aBP);(5)富营养泥炭沼泽阶段(750-24 aBP);(6)富、中营养泥炭沼泽阶段(24 aBP-今)。
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The plant community composition changed and the community coverage increased over the wetland succession from primary swamp, through swampy meadow, to meadow. The number of associated species increased, while the dominant species abundances decreased. Through succession, the content of soil organic matter and total nitrogen declined. In contrast, the soil enzyme activity of catalase, protease and invertase increased; however urase declined.
随着湿地原生沼泽向沼泽化草甸、草甸的演替,湿地植物群落盖度增加、物种组成增多,群落优势种优势度减小,伴生种数量增加,植物多样性呈增加趋势;湿地土壤有机质、全氮含量不断减少,过氧化氢酶、蛋白酶、蔗糖酶活性增加,脲酶活性降低。
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With the deflected succession of aquatic ecotype plant functional group,the dominance of mesophytes and xerophytes increased,while the dominance of aquatic and hygric plants decreased. However,there are only planting crops in the reclaimed wetland. In the composition of plant biotype functional group,the hydrophytes reduced quickly with the deflected succession and the dominance of perennial herbs is mostly marked,and there are only annual herbs in reclaimed wetland. Compared with primary swamp,the species diversity index of meadow is the highest,the swampy meadow follows,and the reclaimed wetland is the lowest.
植物的水分生态型功能群组成随湿地的逆行演替,水生、湿生类植物功能群的优势度不断减少,中生、旱生类植物功能群的优势度逐步增加,而在垦后湿地只有农作物;植物生活型功能群组成随湿地的逆行演替,水生草本迅速减少,陆生多年生草本增加占据优势,而在垦后湿地均为一年生草本;湿地植物物种丰富度、多样性指数由原生沼泽、沼泽化草甸到草甸依次增加,草甸为最大值,而垦后湿地则最低。
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The results indicated that there was an ecological succession of wetland plant communities and that the successive series is as follows: aquatic plant→helophytes→swampy prata→herbosa with the changes of habitat from aquatic to mesophytic. The horizonal distribution regularity of plant communities showed symmetric distribution at loop lake or banks of small stream and con centric distribution at depression. The vertical distribution regularity is as follows: aquatic vegetation→moor vegetation→swampy prata vegetation→subalpine meadow subalpine shrub from the center of lake to the hilltop.
结果表明,随着湿地水分由多到少的变化,植物群落类型发生相应的生态演替,其演替序列为水生植被→沼生植被→沼泽化草甸植被→草甸植被,且在水平方向呈对列式和同心圆式分布;从湖心至丘顶的垂直分布规律表现为水生植被→沼泽植被→沼泽化草甸→亚高山草甸→亚高山灌丛。
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Main factors in different seasons have been known, Fractal character of the distribution pattern. the Box dimension, Information dimension and corelative dimension of the D.
有鉴于此,本文以三江平原草地的优势植物小叶章为研究对象,选择典型草甸、沼泽化草甸、沼泽三个具有代表性的小叶章群落。
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It was same that three indexes of activity intensities trended in four types of habitats. The activity intensities of root vole on four types of habitats were in ascending order of the manual cultivated land, true meadow, swamp meadow and D. fruticosa shrub. Three indexes of activity intensities were different significantly between each two types of habitats, except the runway length and runway branch number between the true meadow and swamp meadow.
除了跑道长度和跑道分叉数在真草甸和沼泽化草甸间差异不显著外,3活动强度变量在不同类型栖息地间均差异显著,而且变化趋势一致;根田鼠对4类栖息地的利用强度从大到小依次为金露梅灌丛、沼泽化草甸、真草甸、人工耕作地。
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The Zoige wetland on the eastern fringe of Qinghai-Tibetan Plateau, with averagealtitude between 3,400 and 3,600m, is the watershed of Yangtze River and YellowRiver. There are large area of peatland, subalpine meadow and lakes in this region.
若尔盖高原湿地位于青藏高原东北部地区,平均海拔3,400-3,600m,是长江和黄河的自然分水区,区内发育了大面积的草本沼泽以及高寒沼泽化草甸、高寒湖泊。
- 更多网络解释与沼泽化相关的网络解释 [注:此内容来源于网络,仅供参考]
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swamp meadow:沼泽草甸子
swamp formation 沼泽化 | swamp meadow 沼泽草甸子 | swampy soil 沼泽土
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swamp meadow:沼泽化草甸
潮褐土:meadow cinnamon soil | 沼泽化草甸:swamp meadow | 亚高山草甸:Subalpine meadow
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bogginess:沼泽化
沼泽地 Bog | 沼泽化 Bogginess | 水湿的 Boggy
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swamping:沼泽化
swampiness /沼泽化/ | swamping /沼泽化/ | swampland /沼泽地/
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soil swamping:沼泽化
soil survey 土壤甸 | soil swamping 沼泽化 | soil swelling 土壤膨胀
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forest swamping:森林沼泽化
forest survey 森林测量 | forest swamping 森林沼泽化 | forest tundra 森林冻原
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meadow swamping:草甸沼泽化
meadow steppe 草甸草原 | meadow swamping 草甸沼泽化 | meagre clay 瘦粘土
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complex swamping:复合沼泽化
complex structure 复合结构 | complex swamping 复合沼泽化 | complexing agent 络合剂
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vegetated lagoon facies:沼泽化舄湖相
生长期 vegetal period | 沼泽化舄湖相 vegetated lagoon facies | 植被地带 vegetated terrain
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swampiness:沼泽化
swamper /矿车跟车工/ | swampiness /沼泽化/ | swamping /沼泽化/