论文部分内容阅读
湖口县三里林场北港分场,地处长江中下游南岸,29°50′N,11 6°20′E。年均温17.1℃,极端最低温-10.3℃,极端最高温40.3℃,全年无霜期259天,年均降水量1 394.2mm,年均蒸发量1 523.4mm,全年日照时数1 983.8小时,年均相对湿度78%试验地设在向阳缓坡下部,海拔50—60m;坡下紧连小水库;土壤pH5—6,黄壤、肥力
Hukou County Sanliulin North Port field, located in the middle and lower reaches of the Yangtze River south bank, 29 ° 50’N, 11 6 ° 20’E. Average annual temperature of 17.1 ℃, extreme minimum temperature of -10.3 ℃, extreme maximum temperature of 40.3 ℃, the annual frost-free period of 259 days, the average annual rainfall of 1 394.2mm, the average annual evaporation of 1 523.4mm, annual sunshine hours of 1 983.8 hours, Average annual relative humidity 78% The test ground is located in the lower part of the sunny gentle slope, with an elevation of 50-60m; the small reservoir is tightly connected with the slope; the soil pH is 5-6, the yellow soil is fertile