扎龙湿地水循环要素变化特征与水资源管理

应用Kendall秩次相关检验等方法对扎龙湿地水循环要素特征进行分析。分析结果表明:(1)扎龙气温呈上升趋势,变暖的季节主要是冬季和春季;(2)气温上升,蒸发没有明显的变化趋势,这主要是因为最高气温与最低气温的不对称变化,以及风速有减小趋势导致的;(3)降水、径流年际间变化大,年内分配趋于集中,有降水异常现象;(4)蒸发和湿度年内变化特征比较明显,春季风速大,蒸发大,湿度低,降雨量少。根据各要素的年内变化和年际变化,提出了扎龙湿地水资源管理措施。

The water cycling characteristics of Zhalong wetland and its water resource management

The methods of the Kendall's rank verification are used to analyze the characteristics of water cycle indicators in Zhalong wetland.The results are outlined as fellows:(1) The annual average temperature had been increasing,winter and spring temperature increased most rapidly,(2)With increasing of temperature,annual average evaporation didn't increase,because the maximum temperature didn't changed in accordance with the minimum temperature,and the trend of wind speed reduced.(3)Precipitation and runoff varied dramatically from year to year and distributed concentratively within one year.Some unusual precipitation events happened.(4) Evaporation and atmosphere humidity apparently changed the characteristics within one year.The wind speed was the strongest in the spring,evaporation amount had the maximum value within one year,atmosphere humidity was the lowest and precipitation was a very few.Based on the characteristics of water cycle indicators,the measures of water resource management are proposed in Zhalong wetland.