Climate suitability assessment of summer maize in Cangzhou city

doi:10.14088/j.cnki.issn0439-8114.2020.07.019

Abstract

Abstract: Based on the growth environment requirements of summer maize and the climate conditions of Cangzhou city, a climate suitability evaluation model of summer maize was established, which was affected by the average temperature, active accumulated temperature, sunshine hours and precipitation during the whole growth period of summer maize. The meteorological observation data of Cangzhou city from 2010 to 2017 were selected, and the climate suitability of summer maize in Cangzhou city was improved by using GIS analysis technology and weighted comprehensive evaluation method. The regionalization study was carried out. The results showed that the distribution level of planting suitability of summer maize in Cangzhou was not uniform. The overall trend is gradually increasing from northwest to southeast. Renqiu, northwest Hejian and Suning are sub-optimal areas with relatively low economic returns. Wuqiao, Dongguang, Nanpi, Yanshan, Haixing, Mengcun and southeastern Cangxian are the most suitable areas for summer maize cultivation. Both heat and rainfall and water conditions can meet the growth needs of summer maize, and the economic returns are relatively high. It is suggested that the appropriate climatic strips should be rationally utilized. We should increase the planting area of summer maize in these areas to promote local agricultural development.

Key words: summer maize, climate suitability, GIS analysis technology, weighted comprehensive evaluation method, Cangzhou city

CLC Number:

S513
P461.3

GAO Cao, HAN Dian-chen, ZHAO Xiao-han, XING Li-zhu, LI Lian-xiang. Climate suitability assessment of summer maize in Cangzhou city[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(7): 88-91.

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