淡水沼泽

基于QUEST决策树兼容多源数据的淡水沼泽湿地信息提取

Freshwater marsh wetland information extraction based on QUEST decision tree integrating with multi-source data

淡水沼泽湿地泥炭沉积中氮素分布特征

Characteristics of Nitrogen Distribution in Peat Deposit of Freshwater Marsh Wetland

淡水沼泽湿地CO2、CH4和N2O排放通量年际变化及其对氮输入的响应

Annual Dynamics of CO_2 , CH_4 , N_2O Emissions from Freshwater Marshes and Affected by Nitrogen Fertilization

人类活动影响下淡水沼泽湿地温室气体排放变化

Character of the Greenhouse Gas Emission in the Freshwater Mire under Human Activities

另外，罗纹鸭再次在淡水沼泽的小岛上出现。

Moreover , the Falcated Duck show up again at the freshwater marsh today too !

在从哥伦比亚到巴西的整个亚马逊盆地的淡水沼泽和池塘里都能找到它们的踪迹。

They are found in freshwater marshes and pools throughout the Amazon basin , from Colombia to brazil .

通过野外控制试验和室内培养试验研究了氮素输入对淡水沼泽湿地碳循环过程的影响。

Field control experiment and laboratory culture experiment were conducted to study the influence of nitrogen input on the freshwater mire carbon stock .

山东省黄河三角洲分布4种不同生态型芦苇&淡水沼泽芦苇、咸水沼泽芦苇、低盐草甸芦苇和高盐草甸芦苇。

Four different ecotypes of reeds & fresh water swamp reed , salty water swamp reed , lower salt meadow reed and higher salt meadow reed were investigated in the Yellow River Delta .

6300年以来镇江钻孔所在地区沉积淡水沼泽沉积，因此，5000&6000年前长江三角洲地区似无高于现今的海平面。

Below the present Woosung level respectively . Since 6300 years in area of Zhenjiang boring deposited sediments of freshwater marsh , so it seems in Yangtze delta aea no sea level was higher than present one during 5000 & 6000 years B.P.

综述国内外湿地氮素各种输入途径的研究进展，分析当前研究中存在的问题，指出淡水沼泽湿地是目前研究的薄弱点。

This paper firstly summarizes the advance in the research on each nitrogen input approach . Then it analyzes the issues existed in current research , and points that , in particular , the study of freshwater mire wetland is very weak .

北美的一种棕色的小涉水鸟（花嘴巨），喙短而厚，呈浅白色，常见于淡水池塘和沼泽中。

A small , brown , North American diving bird ( Podilymbus podiceps ) having a short , heavy , whitish bill , found in freshwater ponds and marshes .

因此，几十年前，人们就意识到如果在沼泽地周围修建起堤坝，将一些淡水灌入沼泽地中，就可以把蚊子赖以生存的环境给冲刷掉。

So a few decades ago it was learned that if dykes were built around the marshes , a little fresh water could be pumped in , flooding the breeding areas .

据2001年进行的全省湿地资源调查结果，将云南的湿地划分为永久性河流湿地、永久性及季节性淡水湖泊湿地、沼泽草甸湿地等6个湿地类型。

According to the inventory results of wetland resources of the whole province in 2001 , Yunnan wetland was divided into 6 types including permanent river wetland , permanent and seasonal freshwater lake wetland , grassy marsh wetland , etc.