| 摘要: |
| 在内蒙武川县半干旱农区采用波恩比法测定农田蒸散。这种测定方法在国外已被广泛采用,但国内有关的报道很少。此法不但能测出农田蒸散及农田中能量各分量的日变化,而且能较精确地测出同一地不同作物农田蒸散。通过对二年测量数据分析,建议武川地区在连续干旱年考虑采用农田休闲或作物、饲料轮作等耕作措施,以达到充分有效利用水资源的目的. |
| 关键词: 农田蒸散 农业气象 波恩比法 能量平衡 |
| DOI： |
|
| 基金项目: |
|
| THE MEASUREMENT OF THE CROP FIELD EVAPOTRANSPIRATION IN THE DRYLAND FARMING EXPERIMENTAL PLOT IN WUCHUAN COUNTY,INNER MONGOLIA |
|
|
|
| Abstract: |
| It is feasible to measure the crop field evapotranspiration using the Bowen's ratio in the semi-arid agricultural area in Wuchuan County,Inner Mongolia.This method is used widely abroad,but few people use it in China. Bowen's ratio can measure not only the energy elements and the evapotran- spirationof the crop field but also their differences between the different crops in the same field accurately,which are very important to the study of the crop water use efficiency. After analysis the two year's data,we... |
| Key words: agrometeorology crop field evapotranspiration Bowen's ratio energy balance |
