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进行苎麻优质高产的气象生态条件研究,初步明确了温度、降水量、日照对苎麻纤维产量和纤维品质的影响。试验结果表明,头麻以20℃左右、二三麻以25℃左右为最适温度,当温度小于2℃时麻苗受到影响,高于35℃的高温日数在10天或以上导致减产1/4～1/3;湖区苎麻生育期年降水量700～1000毫米、山丘区年降水量大于1000毫米则苎麻增产丰收机率大,并均随降水量增多其纤维细度提高。苎麻生育期日照强度大,则纤维产量高,纤维细度低,否则反之。同时明确了林带在寒冷季节有增暖作用,在酷暑期间又有降温增湿效果,林内较林外平均增高1.1～1.4℃,距林带南面5H 林高处的风速较空旷地降纸35%。
The research on the meteorological and ecological conditions of ramie with high quality and high yield has initially clarified the effects of temperature, precipitation and sunshine on the yield and fiber quality of ramie. The results showed that the optimum temperature was about 20 ℃ for marijuana and about 25 ℃ for maize and maize. When the temperature was lower than 2 ℃, the effects of mala mixed seedlings were affected. When the temperature above 35 ℃ was above 10 days or above, 4 ~ 1/3; lake ramie annual rainfall of 700 ~ 1000 mm, the annual rainfall of more than 1000 mm in the ramie ramie yield increases, and both increase the fineness of the fiber with increasing precipitation. Ramie growth period of sunshine intensity, then the high fiber yield, low fiber fineness, otherwise the contrary. At the same time, it is clear that the forest belt has the warming effect in the cold season, and has the effect of cooling and humidifying during the summer. The average height of the forest is 1.1-1.4 ℃ higher than that of the forest.