【摘要】 对鄱阳湖地区30多年的气候资料分析比较得出:鄱阳湖围垦后,年平均气温垦区上升0.11°C,湖区上升0.09°C;年平均最高气温垦区上升0.57°C,湖区上升0.07°C;日最高气温≥35°C的天数垦区年增加 10天,湖区年增加 4天;年平均最低气温垦区下降 0.26°C,湖区上升0.06°C。水汽压和相对湿度,垦区减少 0.05hpa和 1％,湖区减少 0.16hPa和1％。降水量垦区减少95mm,湖区变化不明显,因而,湖区有向干旱陆相盆地气候发展的趋势。更多还原

【Abstract】 Based upon the climatic data in Poyang Lake area in the last 30 years, the changes of climatic elements, due to large-scale reclamation, have been observed both in reclaimed area and lake district. Detailed analysis and comparisons between them before and after reclamation are given from the following six aspects:(1) the yearly-mean air temperature has ascended 0. 11℃ in the reclaimed area and 0. 09℃ in the lake district;(2) the maximum air temperature average 0. 57℃ higher per year in the reclaimed area, and also 0. 07℃ higher in lake district;(3) Concerning the days when the annual temperature exceeds 35℃ , an increase of 10 days and 4 days is noted in the reclaimed area and the lake district, respectively;(4) in the reclaimed area, the yearly-mean minimum air temperature decreased 0. 28℃ while in the lake district increased 0. 06℃ ;(5) the vapor pressures have dropped by 0. 05 hPa in the reclaimed area and 0. 16 hPa in the lake district; the relative humidity also drops 1 % in both areas;(6) the corresponding yearly-mean precipitation has decreased by 95mm in the reclaimed area, whereas no distinct change was observed in the whole lake district.更多还原