Research on Climate Potential Productivity and Utilization of Grapes in Eastern Fujian
[Objective]The impacts of regional climate changes on the climatic potential productivity of grapes were explored to provide a basis for efficiently utilizing regional climate resources and optimizing the layout of grape industry.[Method]Based on the meteorological data from nine national basic meteorological stations in Eastern Fujian from 1971 to 2020 and grape area and yield data in Eastern Fujian from 2000 to 2019,crop growth dynamic statistical model method,linear trend analysis method and Manner-Kendall test method were adopted to analyze the spatiotemporal distribution characteristics of grape photosynthetic potential productivity,light and temperature potential productivity,climate potential productivity and climate resource utilization in Eastern Fujian.[Result]Over the past 50 years,the potential productivity of photosynthetic,light and temperature,and climate of grapes in Eastern Fujian were 59 313.2 kg/hm2,37 965.1 kg/hm2,and 36 868.0 kg/hm2,with climate tendency rate of-87.7 kg/(hm2·10a),869.1 kg/(hm 2·10a)and 1 046.7 kg/(hm 2·10a),respectively.The climatic potential showed an accelerating upward trend after a mutation in 1999.Spatially,the climatic potential was high in the eastern coastal areas and low in the northwestern mountainous areas,with a high-value center in Fu'an City and a low-value center in Zhouning County.The decrease of temperature and precipitation on potential productivity was 33%-40%and 2%-4%,respectively.The average temperature correction coefficient and the average precipitation correction coefficient was 0.6 and 1.0,respectively.The correlation coefficients between climate potential productivity and temperature,precipitation,and sunshine duration were 0.71,-0.31,and 0.70,respectively.The average utilization of climate resources in Eastern Fujian was 46%,with correlation coefficients of 0.72 and 0.55 with yield per unit area and climate potential productivity,respectively.[Conclusion]The climate potential productivity of grapes in the eastern coastal areas is better than that in the northwestern mountainous areas of Eastern Fujian.Temperature is the most influential factor on grape climate potential productivity in Eastern Fujian,while increasing precipitation has negative effects.The planting structure of grape matches well with the spatial distribution of climate potential productivity.There is still significant improvement room for utilizing grape climate potential productivity in Eastern Fujian through measures such as increasing grape yield per unit area and enhancing microclimate regulation in vineyards.
grapesphotosynthetic potential productivitylight and temperature potential productivityclimate potential productivityutilization of climate resourcesEastern Fujian
NETL
NSTL
万方数据
维普
