查询词典 wetlands

Odum. His goal was to use the Center as a focal point for both basic ecological research on wetlands as well as their sustainable use in meeting environmental management needs of the society.

Odum于1973年创建的，目的是集中进行湿地的基础生态研究和环境管理研究，实现湿地资源的可持续利用。

Naturalists are concerned that diminishing wetlands are leading the water birds to overpopulate this refuge.

自然主义者在关心逐渐缩小的沼泽地是最主要的水鸟数量过剩的这个避难所。

Naturalists are concerned that diminishing wetlands are leading the water birds to overpopulate this refuge.

自然主义者担心沼泽地的逐渐缩小会使这个保护区的水鸟密度过大，超出此地的承受能力。

Naturalists are concerned that diminishing wetlands are leading the water birds to overpopulate this refuge.

自然主义者博物学家担心，逐渐减少湿地是第一位的对水禽的影响，形成人口过密的避难所。

Naturalists are concerned that diminishing wetlands are leading the water birds to overpopulate this refuge.

现在一些自然主义学者已经在担忧，随着湿地的减少，这个保护区里的水鸟数目也许会过于密集。

Naturalists are concerned that diminishing wetlands are leading the water birds to overpopulate this refuge.

现在一些自然主义学者已经在担忧，随着湿地的减少导致保护区里的水鸟数目过于密集。

Naturalists are concerned that diminishing wetlands are leading the water birds to overpopulate this refuge.

自然主义者擔心沼泽地的逐渐缩小會使這個保護區的水鸟密度過大，超出此地的承受能力。

According to the nature of the water sources, wetlands can be classified into six types: marine, estuarine, lacustrine, riverine, palustrine (found in marshes, swamps and bogs) and artificial.

按水源界别，湿地可分为六大类：海洋、河口三角洲、湖泊、河滨、淡水（位於沼泽、草泽及苔地的湿地）和人工湿地。

Patuxent's scientists have been responsible for many important advances in natural resource conservation, especially in such areas as migratory birds, wildlife population analysis, waterfowl harvest, habitat management, wetlands, coastal zone and flood plain management, contaminants, endangered species, urban wildlife, ecosystem management, and management of national parks and national wildlife refuges.

其研究涉及自然资源保护的许多学科，尤其是候鸟、野生动植物数量分析、水禽、生境管理、湿地、海滨区和雨林区管理、污染物、濒危物种、城市野生动物、生态系统管理、国家公园和自然保护区管理。

Any of several perennial reeds of the genus Phragmites in the grass family, found worldwide in marshes and wetlands and having stems up to nearly6 meters(20 feet) long.

芦苇属禾本科禾本科中的一种芦苇属多年生的芦苇，在世界各地的沼泽和湿地都有发现，有近六米（合20英尺）长的茎

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。