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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (1): 204-209.doi: 10.11924/j.issn.1000-6850.2014-2190

所属专题： 农业气象

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

高寒冷凉地区日光温室相对湿度变化规律

李全平   

  1. 青海省海北藏族自治州祁连县气象局
  • 收稿日期:2014-08-12 修回日期:2014-12-08 接受日期:2014-12-12 出版日期:2015-03-18 发布日期:2015-03-18
  • 通讯作者: 李全平
  • 基金资助:
    青海省气象局气象科研重点项目；西宁市农业气象服务开放基金项目

Relative Humidity Change Rule of the Greenhouse in High Altitude and Low Temperature Areas

  • Received:2014-08-12 Revised:2014-12-08 Accepted:2014-12-12 Online:2015-03-18 Published:2015-03-18

摘要： 为探明高寒冷凉地区日光温室内相对湿度的变化规律，达到农业防灾减灾和可持续发展的目的，利用青海省东部农业区国家现代农业示范园区日光温室小气候观测数据及气象站资料，通过数理统计方法分析高寒冷凉地区不同天空状况、不同季节的变化规律。结果表明：高寒冷凉地区试验期间温室平均相对湿度日变化与四季相同，趋势均呈“单波谷”型，夜间0:00—8:00，温室内相对湿度处于稳定的高湿状态；晴天相对湿度上升及下降速度较快，日变幅最大，阴天上升及下降速度减慢，日变幅减小；温室内外相对湿度相关性阴天大于多云天与晴天，晴天8:00—11:00、多云天16:00—22:00、阴天20:00—23:00相关性较差；平均相对湿度年内最大值及最小值均出现在冬季晴天，各季16:00—19:00相对湿度上升最快。

关键词: 玻璃珠转化法, 玻璃珠转化法

Abstract: For purpose of exploring the laws of how the relative humidity changes in the sunlight green house located in high altitude and low temperature areas and thus achieving the prevention from and reduction of natural disasters and sustainable development for agriculture, with the utilization of the micro-climate observation data for sunlight green house and materials from the weather station in the national modern agricultural demonstrative zones in the eastern agricultural areas of Qinghai Province and by means of mathematical statistics method, the laws of change regarding to the various sky conditions and different seasons in high altitude and low temperature areas were analyzed. The results indicate that: Firstly, the daily change and yearly change of average relative humidity in the green house of high altitude and low temperature areas during the test turned out to be the same, the tendencies of both of which represented as the “single trough” line. And between 0:00 and 8:00, the relative humidity in the green house stayed in a stable high humidity condition. Secondly, the daily change amplitude was observed to be at its maximum in sunny days as the relative humidity rose and fell rapidly; in rainy days, the relative humidity rose and fell in slowed down speed, with the daily change amplitude decreased accordingly. Thirdly, the relative humidity correlation inside and outside of the green house in rainy days was larger than that in cloudy days and sunny days; 8:00-11:00 in sunny days, 16:00-22:00 in cloudy days , and 16:00-19:00 in rainy days the correlation was poor. Fourthly, both of the minimal and maximal values concerning the average relative humidity within one year appeared in the sunny days of winter, and between 16:00 and 19:00 in all of the four seasons the relative humidity rose fastest.