欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
基于涡度相关技术对三江平原典型沼泽湿地的水热通量进行了连续观测，研究沼泽湿地能量平衡和蒸散发的季节变化，确定观测期内沼泽湿地总蒸散量，并通过逐步回归方程估算沼泽湿地水面蒸发和植被蒸腾。结果表明，沼泽湿地的能量平衡具有明显的季节变化特征，总体看来，潜热通量是湿地的主要能量支出项，占净辐射的45.5％，感热通量和存储热通量分别占净辐射的27.9％和26.7％。2006年5～10月份沼泽湿地总蒸散量为310.6mm，月均日蒸散量最高值出现在7月。观测期内沼泽湿地水面蒸发量约为221mm，占总蒸散量的71％左右，植被蒸腾量则约占总蒸散量的29％，湿地蒸散发以水面蒸发为主。
英文摘要：
During the period from May to October 2006, the continuous eddy covariance measurements is used to investigate the seasonal variation of energy balance and evapotranspiration and to determine the total evapotranspiration over the typical marsh wetland in Sanjiang plain. According to the regression analysis, the total evaporation and transpiration are estimated. The results show that there is obvious seasonal variation of the energy balance of marsh wetland. Overall, the latent heat flux dissipated 45.5 % of the net radiant energy, sensible heat flux 27.9 % and the storage heat flux 26.7 %. The total evapotran- spiration from May to October is 310.6 ram, and the highest month-average daily evapotranspiration appears in July. The total evaporation which accounts for about 71% of total evapotranspiration is about 221 nun, and the total transpiration accounts for 29 %. Therefore, the evaporation is the main contributor to the evapotranspiration over marsh.
同期刊论文项目
同项目期刊论文
Dependence of wheat and rice respiration on tissue nitrogen and the corresponding net carbon fixatio
Dynamics of soil organic carbon and its fractions after abandonment of cultivated wetlands in northe
Quantifying net ecosystem carbon dioxide exchange of a short-plant cropland with intermittent chambe
Simulating crop net primary production in China from 2000 to 2050 by linking the Crop-C model with a
Effects of the conversion of marshland to cropland on water and energy exchanges in northeastern Chi
Quantifying direct N2O emissions in paddy fields during rice growing season in mainland China: Depen
Contribution of winter fluxes to the annual CH4, CO2 and N2O emission from freshwater marshes in the
期刊信息
位置：