Studies on Fine Spatial Distribution of Growth and Development Process of Winter Wheat Based on GIS in Chongqing

Abstract

Abstract: By using the observation data of winter wheat yields of different sowing dates in the Sichuan Basin,the numeric expressions of spatial distribution of main growing periods of winter wheat were established.Based on the GIS technology and the 1:250000 DEM,the fine spatial distribution maps for suitable sowing period,date of heading,mature period and days of the growth and development of winter wheat in Chongqing area were drawn.The results provided the basis for fine spatial distribution of growth and development process on winter wheat.

Key words: Growth and development process, Growth and development process, Spatial distribution, GIS, Winter wheat

GAO Yang-hua~1,CHEN Zhi-jun~1,LI-Yonghua~1,YI Qun-lin~2,Tang Yun-hui~2(1.Institute of Meteorological Sciences of Chongqing City,Chongqing 401147,China;2.Meteorological Bureauof Chongqing City). Studies on Fine Spatial Distribution of Growth and Development Process of Winter Wheat Based on GIS in Chongqing[J]. Chinese Journal of Agrometeorology.

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Studies on Fine Spatial Distribution of Growth and Development Process of Winter Wheat Based on GIS in Chongqing

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