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首页> 外文会议>Canadian Society for Civil Engineering annual conference >HYDROLOGICAL MONITORING AND CHARACTERIZATION OF A SUBARCTIC WETLAND IN THE HUDSON BAY LOWLANDS
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HYDROLOGICAL MONITORING AND CHARACTERIZATION OF A SUBARCTIC WETLAND IN THE HUDSON BAY LOWLANDS

机译：哈德逊湾流域亚热带湿地的水文监测和表征

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摘要

Wetlands occupy 14% of the Canadian landscape and yield non-negligible influence onhydrological source distribution, water quality and quantity, climate change as well as wildlife habitats.Recently, it has been reported that the temperature and the precipitation of arctic area had beenincreasing sharply. To gain insight of the interaction between hydrology and atmosphere of arctic andsub-arctic wetlands, extensive field investigation was conducted in the Deer River watershed nearChurchill, Manitoba during summers of 2006 and 2007. Results indicate that summer air temperature andprecipitation were increasing in the past two years and the 30-year historical data also demonstrates theelevation trends. Other evidence that shows a warming climate in the study watershed was alsoobserved. For example, summer frost table was significantly shallower in 2007 than that of 2006 with anincremental distribution as approaching the river bank; evapotranspiration in the summertime of 2007 wasalso greater than that of 2006. Some other interesting findings include that soil moisture was much higherat bank edges than vicinity and retained stable in the whole study period; water discharge owned 1-2days response to precipitation and diminished during the arid summertime.
机译：湿地占加拿大景观的14％，对加拿大的影响不可忽略 水文资源分布，水质和水量，气候变化以及野生动植物栖息地。 最近，有报道说北极地区的温度和降水量已经下降。 急剧增加。深入了解水文与北极和北极大气之间的相互作用 亚北极湿地，在附近的迪尔河流域进行了广泛的野外调查 马尼托巴省丘吉尔（Churchill）在2006年和2007年夏季。结果表明，夏季气温和 在过去两年中，降水在增加，而30年的历史数据也表明 海拔趋势。显示研究分水岭气候变暖的其他证据也 观测到的。例如，2007年的夏季霜冻表比2006年的浅霜冻表明显要浅。 随着河岸的逐渐增加; 2007年夏季的蒸散量为 也比2006年有所增加。其他一些有趣的发现包括土壤湿度高得多。 在堤岸边缘附近而不是附近，并在整个研究期间保持稳定;拥有排水口1-2 在干旱的夏季，对降雨的响应天数减少，而在夏季却有所减少。

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