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观测分析了甘肃省冬季4大蔬菜主产区高效节能日光温室内气温、地温和墙体温度以及光照强度的变化规律等光热环境,探讨了高过节能日光温室在甘肃的适应性。结果表明,甘肃省冬季高效节能日光温空各旬平均气温基未在12℃以上,达到了春、秋季气温指标;日光温室内外最大温差26.8℃,光照强度最高可达80700lx。确定河西平川灌区和中部沿黄灌区为甘肃省高效节能日光温室分布的最佳区域,泾、渭河沿岸,陇南地区,兰州近郊为适宜区域。
The light and heat environment, such as temperature, ground temperature, wall temperature and light intensity in high efficiency and energy saving solar greenhouse of 4 major vegetable producing areas in winter in Gansu Province were observed and analyzed. The adaptability of high over energy saving solar greenhouse in Gansu was discussed. The results showed that the mean temperature of light and air temperature in winter in each province was less than 12 ℃ in winter and reached the spring and autumn temperature indexes. The maximum temperature difference between inside and outside of sunlight greenhouse was 26.8 ℃, and the light intensity reached to 80 700 lx. It is found that the Hexi Pingchuan Irrigation District and the Huangzhuang Irrigation Area in the Central China are the best areas for the distribution of efficient energy-saving solar greenhouse in Gansu Province. Jing, Weihe River, Longnan and Lanzhou suburbs are the most suitable areas.