内蒙古中部马铃薯霜冻灾害风险区划

Risk regionalization of potato frost disaster in central Inner Mongolia

利用内蒙古中部19个旗县国家级气象站1983—2018年马铃薯成熟期日最低气温数据,以及各旗县1994—2018年的马铃薯种植面积、产量数据等,构建了内蒙古中部马铃薯霜冻灾害风险评价指标体系;采用层次分析法和加权综合评分法建立了马铃薯成熟期霜冻灾害风险评价模型;利用GIS技术对内蒙古中部马铃薯成熟期霜冻灾害风险进行了区划分析。结果表明,内蒙古中部马铃薯成熟期霜冻灾害高风险区主要分布在乌兰察布市察右中旗和呼和浩特市武川县;次高风险区主要分布在乌兰察布市四子王旗、商都县、卓资县、化德县以及包头市达茂旗;中风险区主要分布在乌兰察布市东南部地区、呼和浩特市中部以及包头市固阳县;低风险区主要分布在乌兰察布市凉城县,呼和浩特市土默特左旗、托克托县、和林格尔县、清水河县,包头市南部及土默特右旗。

Based on the daily minimum temperature data of potato maturity from 1983 to 2018 of 19 national meteorological stations in central Inner Mongolia,as well as the potato planting area and yield data from 1994 to 2018,the potato frost disaster risk evaluation indexes in central Inner Mongolia was constructed.The risk assessment model for frost disaster of potato was constructed by using the analytic hierarchy process(AHP)and weighted comprehensive score method.The frost disaster risk of potato during the mature stage in central Inner Mongolia was analyzed by GIS technology.The results show that the high risk areas of frost disaster during potato matu⁃rity in central Inner Mongolia are mainly distributed in Chayouzhongqi of Wulanchabu City and Wuchuan county of Hohhot City.The secondary high risk areas are mainly distributed in Siziwangqi,Shangdu county,Zhuozi county,Huade county of Wulanchabu City,and Damaoqi of Baotou City.Medium risk areas are mainly distributed in the southeast of Wulanchabu City,central area of Hohhot City,and Guyang County of Baotou City.The low risk areas are mainly distributed in Liangcheng County of Wulanchabu City,Tumote⁃zuoqi,Tuoketuo County,Helingeer County,Qingshuihe County of Hohhot City,the south of Baotou City and Tumoteyouqi.