Comparison on Temperature and Light Performance of Three Kinds of Solar Greenhouse in Winter in Qinghai

In order to master the thermal and lighting performance of newly designed solar greenhouse，taking traditional brick-concrete structure solar greenhouse in Qinghai province as a reference，environmental parameters such as air temperature and light intensity in the greenhouse during overwintering production of facility vegetables were continuously monitored.The thermal and lighting performance of three kinds of solar greenhouses were compared.Results showed that C-type greenhouse has better heat preservation ability in autumn and winter，and better light environment；A-type greenhouse takes second place；B-type greenhouse has worse heat preservation performance and poor light environment when the average temperature was lower and the external temperature was lower.