【作者】 袁淑杰； 赵春雷； 李二杰； 杨贤； 张文宗；

【Author】 Yuan Shujie1,2,Zhao Chunlei3,Li Erjie3,Yang Xian4,Zhang Wenzong3(1.College of Atmospheric Science,Chengdu University of Information Technology,Chengdu 610225,China;2.Plateau Atmospheric and Environment Key Laboratory of Sichuan Province,Chengdu 610225,China;3,Hebei Laboratory for Meteorology and Eco-Environment,ShiJiaZhuang 050021;5.Climate center of Hebei province,Shijiazhuang,050021,China)

【机构】 成都信息工程学院大气科学学院； 高原大气与环境四川省重点实验室； 河北省气象与生态环境重点实验室； 河北省气候中心；

【摘要】 了解一个地区的作物生产潜力,对评价该地区粮食的生产能力和人口承载能力,合理开发利用自然资源具有重要的意义。本文在前人研究的基础上,利用机制法基于GIS计算了冀鲁豫三省1961-2008年每10年平均的冬小麦光合生产潜力,分析了冬小麦光合生产潜力的变化趋势及变化原因。结果表明:(1)影响冬小麦光合生产潜力的因子主要是冬小麦全生育期的太阳总辐射,影响太阳总辐射的主要因子是日照时间。日照时数的多少决定着光合生产潜力的大小,冬小麦全生育期日照时数越多,冬小麦光合生产潜力越大。(2)不同地区冬小麦光合生产潜力相差较大,总体来讲,冬小麦光合生产潜力北部偏高,南部偏低,这主要是由于南部由于气温偏高,小麦生育期相对较短,全生育期日照时间相对较少,以至于冬小麦光合生产潜力相对较低。(3)由于气候变暖,1991-2000、2001-2008年与1961-1970、1971-1980、1981-1990年相比,冀鲁豫冬小麦生育期缩短,冬小麦光合生产潜力大值区相应减少。更多还原

【Abstract】 It has the vital significance for appraising this area grain productivity and population bearing capacity,rationally developing and utilizing natural resource to understand crops productive potential in a region.The mean wheat photosynthesis productive potential of every 10 years from 1961 to 2008 in the Hebei,Shandong and Henan province based on GIS have been calculated in this paper on the basis of past studies by use of the mechanism method,and the wheat photosynthesis productive potential change tendency and the reason has analyzed.The results are as follows:(1) The main affecting factor of winter wheat’s photosynthesis productive potential is global solar radiation of the winter wheat entire period.The main affecting factor of global solar radiation is insolation duration.The winter wheat’s photosynthesis productive potential is determined by sunshine hours of the winter wheat entire period.The sunshine hours of winter wheat entire period are more;the winter wheat’s photosynthesis productive potential is bigger.(2) The difference of winter wheat photosynthesis productive potential in different areas is big.The winter wheat photosynthesis productive potential is high in the northern this region,and it is somewhat low in the southern this region.The mainly reasons are that the temperature is higher in the southern than the northern this region.The wheat growing periods are relatively shorter,and the duration sunshines of entire growing periods are relatively few,and the winter wheat photosynthesis productive potential is relatively lower.(3) Because of the climate warming,the wheat growing periods also correspondingly reduce,and the big value areas of winter wheat photosynthesis productive potential reduce compared 1991-2000,2001-2008 with 1961-1970,1971-1980,1981-1990.更多还原