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邯郸市东部平原的气候条件与梨树种植面积的时空变化特征分析

Spatiotemporal Variation Characteristics of Climatic Conditions and Pear Planting Area in Eastern Plain of Handan City

  • 摘要: 邯郸市的梨主产区位于东部的平原地区,以邯郸市海拔低于100 m的平原地区作为研究对象,利用研究区内的12个国家气象站1955—2019年的气象数据,分析了邯郸市东部平原的气候条件和梨种植面积的时空变化特征。结果表明:研究区的年平均气温为13.6℃,年平均无霜期为204 d,从年际变化来看,两者均有明显的上升趋势;平均年降水量为513.2 mm,年平均日照时数为2345.5 h,两者均随着时间的推移而呈减少趋势。自1979年以来,梨的种植面积总体呈上升趋势,分别在1986、1994—1995、2014年出现了明显的增长点,这与我国的土地政策、当地的种植习惯和扶持政策、梨栽培技术改进等因素有较大关系,而1989、1996—2006年梨树种植面积有所减少,主要受市场供求关系、梨果品质好坏的影响。

     

    Abstract: The main pear-producing areas in Handan City are located in the plain area in the east. This study takes the plain area with an altitude of less than 100 meters in Handan City as the research area, and analyzes the temporal and spatial variation characteristics of climatic conditions and pear planting area in the research area. The result shows that the annual average temperature in the research area is 13.6 ℃, and the annual average frost-free period is 204 days. From an interannual perspective, there is an obvious upward trend. The annual average precipitation is 513.2 mm, and the annual average sunshine hours is 2345.5 hours, both showing a decreasing trend over time. Since 1979, the planting area of pears has shown an overall upward trend. There were obvious growth points in 1986, 1994~1995 and 2014. This is greatly related to factors such as national land policies, local planting habits and support policies, and improvements in pear cultivation techniques. However, in 1989 and 1996~2006, the planting area of pear trees decreased, which is greatly affected by market supply and demand and the quality of pears.