为探明各种地膜覆盖对果园小气候的效应和对梨树的增产效果,笔者在杭州市种猪场试验场长明梨园进行了试验。结果表明:三种颜色的地膜覆盖均能显著改善梨园小气候,起到增温,平衡土壤水分,提高土壤热量水平的作用;同时,使得根量大大增加,吸收能力增强,比叶重提高,光合效能得到改善,增产效果明显。结果还表明:三种膜以绿膜、无色膜为好,黑膜次之。 In order to find out the effect of various mulching on the microclimate of orchard and the yield increase of pear tree, the author carried out the experiment in Changmingyuan, Hangzhou. The results showed that the mulching with three colors could significantly improve the microclimate of pear orchard and play the role of warming, balancing soil moisture and raising the soil heat level. At the same time, the root mass increased greatly, the absorption capacity increased, the leaf weight increased, photosynthesis Efficiency has been improved, the effect of increasing production is obvious. The results also show that: the three films to green film, colorless film is better, followed by the black film.