摘要
利用鄂东南6个国家气象站和135个区域气象站逐日气象观测资料和30 m分辨率的数字高程模型数据,综合考虑影响枇杷生长发育和产量品质的气候因子和地形因子,筛选出年平均气温、年最低气温、≥10.0℃活动积温、最低气温≤-3.0℃的日数、5月平均气温≥25.0℃的日数、年降水量、8—10月降水量以及坡向、坡度等9个适宜性指标,采用层次分析法和综合生态适宜度方法,在ArcGIS环境下对鄂东南枇杷种植生态适宜性进行精细化区划。结果表明:整体来看,影响鄂东南枇杷种植生态适宜性的主要因素是年最低气温和最低气温≤-3.0℃的日数。全区可分为枇杷种植生态不适宜区、次适宜区、适宜区和最适宜区。其中,西北部的沿江、沿湖区域为最适宜区,可以发展枇杷早熟品种;中部和东南部海拔高度100~250 m的区域为适宜区,适宜种植枇杷中熟品种,而海拔高度为251~450 m的坡地为次适宜区,可以发展营养和功能价值俱佳的中晚熟品种;中部和东南部海拔高度在450 m以上的山区为不适宜区。经初步验证,鄂东南枇杷规模化种植区生产实际与区划结果有很好的一致性,区划结果可为鄂东南枇杷种植产业合理布局提供参考。
Based on the daily observation data at 6 national meteorological stations and 135 regional meteorological stations in southeastern Hubei Province and digital elevation model(DEM) data with 30 m spatial resolution,nine suitability indexes were selected by comprehensively considering the meteorological and geographic factors affecting the growth and development,yield and quality of loquat in southeastern Hubei Province,including annual average temperature,annual minimum temperature,active accumulative temperature greater than or equal to 10.0 ℃,days with daily minimum temperature less than or equal to-3.0 ℃ and daily average temperature greater than or equal to 25.0 ℃ in May,annual precipitation,precipitation from August to October,slope direction and slope,etc.And on this basis that the refined ecological suitability division of loquat planting in southeastern Hubei Province was studied under the operation environment of ArcGIS by using analytic hierarchy process and comprehensive ecological suitability method.The results show that the main factors affecting ecological suitability of loquat planting in southeastern Hubei Province are annual minimum temperature and days with daily minimum temperature less than or equal to-3.0 ℃ on the whole.The whole region is divided into ecological unsuitable zone,sub-suitable zone,suitable zone and the most suitable zone.Among them,the areas along the river and lake in the northwest are the most suitable zone,in which can be planted early-maturing varieties of loquat.The areas with elevation from 100 m to250 m are suitable zone in the central and the southeast of Hubei Province,in which is suitable to plant medium-maturing varieties of loquat,and the hillside with elevation from 251 m to 450 m are sub-suitable zone,in which can be developed late and medium maturing varieties of loquats with good nutrition and function,while the mountainous areas with elevation more than 450 m are unsuitable zone.Elementarily proved,the production practice of loquat in large-scale planting area of southeastern Hubei Province is in good agreement with zoning results.The zoning results can provide reference for the rational layout of loquat planting in southeastern Hubei Province.
作者
魏华兵
陈正洪
罗翔
肖运
罗昱
张鹏
WEI Huabing;CHEN Zhenghong;LUO Xiang;XIAO Yun;LUO Yu;ZHANG Peng(Xianning Meteorological Bureau of Hubei Province,Xianning 437100,Hubei,China;Hubei Meteorological Administration,Wuhan 430074,China;Tongshan Meteorological Station of Hubei Province,Tongshan 437600,Hubei,China;Tongshan Agricultural Bureau of Hubei Province,Tongshan 437600,Hubei,China)
出处
《干旱气象》
2022年第5期823-830,共8页
Journal of Arid Meteorology
基金
湖北省气象局科技发展基金(2021Y16)资助。
关键词
枇杷
生态适宜性
区划
气象因子
地形因子
鄂东南
loquat
ecological suitability
division
meteorological factors
geographic factors
southeastern Hubei Province
