| 1. | An outlet pipe leads from the bottom of each lysimeter to overflow tanks
一条引出管由装置底部伸到承接漏水的容器内。 |
| 2. | The calculated value of bowen ratio was more accurate than the measured value of lysimeter in describing the evapotranspiration rule of crops in short period
波文比的计算值比蒸渗仪的测量值更能精确地反应短时段作物的蒸发蒸腾规律。 |
| 3. | Based on the experimental data from cornfields , this paper compared the daily change of evapotranspiration calculated by bowen ratio energy balance and that calculated by lysimeter
摘要根据实测资料，对波文比计算的蒸发蒸腾量和蒸渗仪实测的蒸发蒸腾量日变化进行比较及分析。 |
| 4. | The results showed that the evapotranspiration calculated by bowen ratio was highly related to solar radiation , but that calculated by lysimeter was not evidently related to solar radiation
结果表明，波文比所测蒸发蒸腾量与太阳净辐射的相关性比较好，蒸渗仪所测值与太阳净辐射的相关性不明显。 |
| 5. | Assuming that the moisture contents in the lysimeter at the time of measurement remain the same as the previous day , the difference between the added water and the overflow represents the potential evapotranspiration
假定蒸散量测定装置内的含水量在两次量度时间之间保持不变，则洒上草面水分和漏出水分之差即代表可能蒸散量。 |
| 6. | Assuming that the moisture contents in the lysimeter at the time of measurement remain the same as the previous day , the difference between the added water and the overflow represents the potential evapotranspiration
假定蒸散量测定装置内的含水量在两次量度时间之间保持不变，则洒上草面水分和漏出水分之差即代表可能蒸散量。 |
| 7. | An outlet pipe leads from the bottom of each lysimeter to overflow tanks . sufficient water is sprinkled on the grass every evening to ensure that a small overflow occurs in the outlet pipes before observation is taken the next morning
上面种满短草。一条引出管由装置底部伸到承接漏水的容器内。每日黄昏时草面都洒上足够水分以使翌日早晨引出管有小量水分流出。 |
| 8. | An outlet pipe leads from the bottom of each lysimeter to overflow tanks . sufficient water is sprinkled on the grass every evening to ensure that a small overflow occurs in the outlet pipes before observation is taken the next morning
上面种满短草。一条引出管由装置底部伸到承接漏水的容器内。每日黄昏时草面都洒上足够水分以使翌日早晨引出管有小量水分流出。 |
| 9. | The dynamic change of nh4 + , no3 - and tn , under the situation which urea was applied in the high fertility paddy - field in yuhang of hangzhou city with a lysimeter which was designed and made by ourselves , was studied and analyzed in order to find the rules of the change in the water - body of surface and the leakage rule of nitrogen , to reduce the effect of nitrogen loss on the water pollution
借助自行设计制作的稻田渗漏计，在杭州余杭对高肥力稻田不同施用尿素氮肥情况下，稻田地表水和渗漏水中铵态氮、硝态氮和总氮(简称三氮)的动态变化规律进行了研究分析，以利于发现氮素在地表水体变化和淋失规律，尽量减少氮素淋失对地下水体所造成的影响。 |
| 10. | Using domestic strained integrated resistor as weighing sensor , at89c52 single chip as control unit , combined with arithmetical magnification , analogtodigital conversion ( a / d ) , real time clock , liquid crystal display ( lcd ) , and series communication interface , a minitype automatic weighing lysimeter is developed . that made measurement of evapotranspiration become conveniently and effectively in studying on water use of crops
为了方便、有效地测定植物的蒸散，为水分利用研究提供价廉物美、简单易用的仪器，本研究利用国产的集成电阻应变式称重传感器，采用at89c52单片机作为控制单元，结合运算放大、模数转换、实时时钟、液晶显示、数据存储、串行通信等外围接口电路，研制了小型自动称重式蒸散仪。 |
