滇中地区塑料温室光温环境的测试分析

 针对滇中地区广泛使用的塑料温室类型的温度、湿度、光照强度进行了全年的观测研究,其中以温度为测试重点,并对测试所得的大量数据进行了统计分析。结果表明:滇中地区冬季夜晚普通单栋塑料大棚内最低温度低于5 ℃的天数超过2／3,1,2月份则达到94.9%;冬季单栋塑料大棚白天升温作用明显,处于封闭状态时室内气温可超过40 ℃,而夜间保温效果不明显,最低气温等于或低于室外气温;冬季太阳辐射强,有利于大棚蓄热升温。夏季室外最高气温基本低于30 ℃,因此大棚的最便捷的散热方式就是利用室外较低温度的空气进行通风散热。

Test and Study on Light and Temperature Environment of the Plastics Greenhouse in Central Area in Yunnan

In this paper, temperature,humidity,and radiation are all-year tested and studied in a plastics greenhouse that are popular used in Yunnan central area,espetially on temperature. The data of test was analyzed. The result show that: In Yunnan central area,the days that the lowest temperature under 5 ℃ are more than two of third of total in single-ridge plastic greenhouse at night in winter. The days in January and February is up to 94.9%;In winter, the calefactive function is obvious in the single-ridge plastic greenhouse by daylight. The hightest indoor temperature could exceed 40 ℃; On the contrary,the lowest indoor temperature equal or under the outdoor at night; In winter,the salor radiation is strong. It is benefit to greenhouse to be calefied. The outdoor highest temperature is usually under 30 ℃ in summer in the area,so the most convenient means of cooling is using outdoor cooler air to ventilate.