The Field Microclimate Characteristics Analysis Of Banana Plantations In Beihai City, Guangxi Province

In order to research the way how the banana planting influence The banana plantations microclimate environment and the microclimate environment’s characteristic and make the banana planting more reasonable and make the planting Management measures more effective. we conduct a research to determine the microclimate factors of Hepu County, Beihai City, such as atmospheric temperature, radiation intensity, soil temperature, soil moisture content, air humidity, light intensity and wind speed in this paper, by using test method for comparing the observing values of microclimate factors inside and outside the banana plantations. This study began in August3,2011and ended in May31,2012. We draw that the microclimate characteristics of banana plantations in Hepu County, The main results were summarized as follows:1. The atmospheric temperature inside banana plantation is obviously lower than that outside. The atmospheric diurnal temperature inside is apparently smaller than that outside. The average temperature and max temperature inside the banana plantation is greatly affected by the illumination. August is the month of the highest temperature and the greatest temperature difference inside and outside the banana plantation all the year around.2. The photosynthetically active radiation is just a single peak inside the banana plantation in sunny day. Complex changes of rainy days banana photosynthetically active radiation, Photosynthetically active radiation intensity influenced by the weather. And the radiation intensity reaches the peak in August.3. The soil temperature inside the plantation is lower than that outside of different soil depth. And the higher the soil temperature, the greater the temperature difference inside and outside the plantation. But the temperature change of deep soil is not obvious and the soil diurnal temperature inside the plantation is apparently smaller than that outside. The endothermic cooling effect and cold insulation effect of the soil in different depth inside the plantation is more obvious than that outside. The temperature difference of soil at different depths is extremely significant of inside and outside the plantation. 4. The atmospheric humidity inside the banana plantation is higher than that outside. And the max atmospheric humidity difference month is August. The humidity change is the same of inside and outside the plantation in a day. The atmospheric humidity during the night is higher than that during the day, and the atmospheric humidity reaches the minimum at14:00.5. The wind speed inside the plantation is greatly smaller than that outside the plantation. The wind direction is greatly affected by the row direction of the plants and the change of the wind direction is relatively fixed.