土壤蒸发测定方法的一些误差

• 作 者: 鹿洁忠 林家栋 曾希全
• 机 构: 北京农业大学,北京农业大学,北京农业大学,
• 出 处: 农业气象
• 发表日期: 1983年04期
• 关键词: 土壤蒸发器 蒸发测定 土壤蒸发 平衡方程式 准确可行 热量交换 中亦 土壤湿度 误差 陆面

一、引言土壤蒸发是水分平衡方程式中的主要支出部分,也是陆面上热量交换的主要途径。在许多实际工作中亦需要大量的土壤蒸发资料,这就要有准确可行的测定或计算方法。近年来,水分平衡法和500型土壤蒸发器法使用较为普遍,对于这两种方法,国内外有过不少研究,为了进一步定量地鉴定上述两种方法的可靠性,本文着重分析其测定的一些误差和使用特点。

I. INTRODUCTION Soil evaporation is a major expenditure component of the water balance equation and is also the main route of heat exchange over the land surface. In many practical work also requires a lot of soil evaporation data, there must be accurate and feasible measurement or calculation method. In recent years, the use of water balance method and 500 soil evaporator method is more common, for both methods, there have been many studies at home and abroad, in order to further quantitatively identify the reliability of the above two methods, this paper focuses on the analysis of its determination Some error and use characteristics.