查询词典 wetlands

Constructed wetlands include canal, pond, fishing pond and paddyfield. Types of wetlands in Sanchahe area are typical and representative. The wetlands area is suitable. Water quality is perfect.

湿地的类型具有典型性和代表性，湿地的面积适中，水质良好，但水资源季节分配不均，人为干扰严重等问题是湿地保护的制约因素。3。

Salt marsh vegetation is one of the most important components of coastal wetlands, and its evolution and dynamics have direct influences on the ecosystem service and value of wetlands.

盐沼植被是滩涂湿地的重要组成部分，其动态变化直接影响着湿地的生态服务功能和价值。

Further, some biologists say that designers of constructed wetlands should vegetate the adjacent riparian area which is different than wetlands.

此外，一些生物学家说，设计者应种植人工湿地附近河岸湿地面积比是不同。

Jilin Province has various types of wetlands, which are widely distributed and are large in area, mainly including Xianghai wetland, Momoge wetland, Chagan Lake wetland, etc., and the wetlands have an area of 1,752,000 hectares, accounting for 9.35% of the land area.

吉林省湿地类型多、分布广、面积大，主要有向海湿地、莫莫格湿地、查干湖湿地等，湿地面积为175.2万公顷，占土地面积的9.35%。

The total seed storage in topsoil (0-10 cm) was 83499-109141 indm^(-2) for natural wetlands and 9140-47452 indm^(-2) for reclaimed paddy fields. In natural wetlands, the seeds were of 16-30 grass plant species, being dominant with Polygonaceae and Cyperaceae or Cyperaceae and Gramineae; while in reclaimed paddy fields, the seeds were of 7-16 grass plant species, with the dominant of Gramineae. The seed storage and species numbers were greater in Shengjin Lake than in Shibasuo Lake. Higher seed bank storage and more species were observed in the paddy fields from Shibasuo wetland with 30 years of cultivation than from the Shengjin Lake wetland with over 50 years of cultivation.

结果表明：天然湿地种子库密度为83499~109141粒m^(-2)，而开垦为稻田30~50年后种子库密度为9140~47452粒m^(-2)；天然湿地的土壤种子库物种数为16~30种，以蓼科－莎草科或莎草科－蓼科为优势种，开垦为稻田后物种数下降为7~16种，且趋向于以禾本科为单一优势种；此外，与十八索湿地相比，升金湖湿地有较高的土壤种子库物种数、丰富度和多样性，而开垦年限为30年的十八索稻田土壤种子库物种数和丰富度显著高于开垦年限为50年的升金湖稻田。

The change speed of the fluviatile and lacustrine wetlands is the highest, and the annual dynamic change rate is as high as 2.60%, such reduction is mainly caused by that many small plots are degraded into saline or alkaline lands and marsh wetlands.

河流湖泊湿地在研究时期内则表现出最快的变化速度，年均动态度达到2.60％，它的这种减少变化是由数量众多的小斑块退化为盐碱地和沼泽湿地导致。

Testing for"K"、diffusivity"D"of wetland soil transmissivity and simulation of hydrologic processes of typical wetlands are made based on the indoor dynamic modeling experiment and the mathematic model simulations. The hydrologic response of river distinguish form that of the wetlands. And this is because that wetland has special hydrologic functions. The hydroperiod of wetlands is coincident with the precipitation period of watershed.

通过室内动态模拟实验测定了不同断面沼泽土壤的导水率K和扩散率D，水文数学模型RMA2模型和GIS相结合模拟了典型沼泽湿地的水文过程，河流和沼泽湿地的水文响向应具有明显的差异性，这是沼泽湿地水系统具有特殊水文功能的基础，沼泽的水文周期与流域降水周期是一致的。

The absorption capacity of heavy metals in vegetated wetlands with reed, Suaeda glauca and Spartina alterniflora was higher than that in non-vegetated wetlands with high density of macrobenthos, especially Bullacta exarata and Mactra veneriformis Reeve.

有植被覆盖的潮滩对重金属的吸附能力明显要高于无植被覆盖的光滩。

Wetlands could be classified into 6 types that they are marine, estuarine, lacustrine, riverine wetlands along rivers and streams, palustrine (wetlands in marshes, swamps and bogs and artificial.

湿地可分为6大类──海洋、河口三角洲、湖泊（包括与湖泊有关连的湿地）、河滨（包括与河溪相关连的湿地）、淡水（包括位於沼泽、草泽及苔地的湿地）和人工湿地。

Before emptying into the gulf, the river feeds wetlands along the coast, and the most conspicuous difference between the image from March 2010 and the image almost exactly a year earlier is the soggier appearance of these wetlands.

在流入海湾前，这条河滋养了海岸边的湿地。2010年3月拍到的照片与恰好一年前拍的照片最大的不同点就在于这些湿地变得更湿了。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。