中国农学通报2026，Vol.42Issue(5)：186-195,10.
呼和浩特地区苜蓿种植气候适宜性评价与区划研究
Evaluation of Climatic Suitability and Zoning for Alfalfa Cultivation in Hohhot Region
摘要
Abstract
To address the issues of scale mismatch,insufficient indicator integration,and methodological limitations in assessing the climatic suitability of alfalfa cultivation in Hohhot,this study aims to establish a high-resolution climatic zoning system,identify key climatic constraints,and provide a scientific basis for regional alfalfa industry planning.Based on high-resolution meteorological data(2017-2024)from 52 stations in Hohhot and field observations,11 indicators encompassing thermal,moisture,light,and overwintering conditions were selected.The analytic hierarchy process(AHP)was employed to quantify factor weights,and GIS spatial analysis was applied for comprehensive climatic suitability evaluation.The results showed that:(1)growing-season thermal conditions(weight 0.3971)and meteorological disaster risks(weight 0.1706)were the dominant factors,with≥5℃accumulated temperature and frost-free period contributing 51.5%to suitability;(2)spatial differentiation exhibited a'superior in the south,limited in the north'pattern,where the central-southern plains were identified as suitable zones(accumulated temperature>3300℃,days with≤-30℃<2 d),supporting 3-4 harvests annually,while the northern high-altitude areas were classified as unsuitable due to insufficient accumulated temperature(<2899℃)and extreme cold(days with≤-30℃≥5 d);(3)snow cover(≥16 d)significantly mitigated over wintering damage in the north,and consecutive no precipitation days(≥6 d)during harvest periods highlighted drying advantages in the central-western regions.This study innovatively developed a city-scale climatic evaluation system covering the entire alfalfa growth cycle and proposed strategy of implementing policies by region:prioritized large-scale cultivation in suitable zones,spring frost prevention in moderately suitable zones,and cold-resistant variety trials in unsuitable zones.The findings provide a replicable technical framework for adaptive forage management in arid and semi-arid regions.关键词
苜蓿种植/气候区划/层次分析法/呼和浩特Key words
alfalfa cultivation/climatic zoning/analytic hierarchy process(AHP)/Hohhot分类
农业科技引用本文复制引用
梁燕,张岚晶,苏利军,温晓东,王妮..呼和浩特地区苜蓿种植气候适宜性评价与区划研究[J].中国农学通报,2026,42(5):186-195,10.基金项目
内蒙古自治区2025年自然科学基金项目"苜蓿刈割晾晒期含水量连续动态监测及干燥机制研究"(2025LHMS04010)、"苜蓿标准化生产全程系列化气象服务研究"(2025MS04051) （2025LHMS04010）
呼和浩特市科学技术局2025年基础研究与应用基础研究项目"呼和浩特地区苜蓿需水规律及灌溉定额研究"(2025—规—基—77) （2025—规—基—77）
中国气象局生态系统碳源汇重点开放实验室开放基金项目"苜蓿生长期光合特性对生态碳汇影响的研究"(ECSS-CMA202414). （ECSS-CMA202414）
