Journal of Henan Agricultural Sciences ›› 2025, Vol. 54 ›› Issue (3): 147-156.DOI: 10.15933/j.cnki.1004-3268.2025.03.016

• Agricultural Information and Engineering and Agricultural Product Processing • Previous Articles     Next Articles

Development of a Climate Suitability Model for the Flowering Period of Chimonanthus praecox in Chongqing and Identification of Potential Planting Zones

JI Li,LI Qiang   

  1. (CMA Key Open Laboratory of Transforming Climate Resources to Economy,Weather Bureau in Beibei District of Chongqing City,Chongqing 400700,China)
  • Received:2024-12-18 Published:2025-03-15 Online:2025-04-24

重庆市蜡梅开花期气候适宜度模型构建及潜在种植区研究

吉莉,李强   

  1. (中国气象局气候资源经济转化重点开放实验室,重庆市北碚区气象局,重庆 400700)
  • 作者简介:吉莉(1983-),女,重庆永川人,正高级工程师,主要从事气象服务研究。E-mail:yushuijinyu@163.com
  • 基金资助:
    重庆市市场监管局第二批地方标准制修定计划项目(2022-71);北碚区社会事业与管理创新研究专项(2022-32)

Abstract: Under the influence of global climate warming,the light,temperature,and water resources required for the growth and development of Chimonanthus praecox have undergone significant changes.Conducting research on the climatic adaptability of its key growth periods can provide a scientific basis for optimizing its cultivation structure.This study established a climate suitability model for wintersweet based on the light,temperature,and water requirements during its flowering period in Beibei,Chongqing,integrating climate suitability theory and fuzzy mathematics.The model was used to analyze climatic suitability characteristics during wintersweet’s flowering stage in Chongqing,identify potential planting areas,and offer insights for adjusting cultivation practices and rationally utilizing climatic resources.Results indicated that Beibei exhibited the highest temperature suitability(0.83—0.99),conducive to flowering,while precipitation suitability ranged from 0.45 to 1.00,sufficiently meeting water demands.However,sunlight suitability was the lowest(0.28),suggesting that light conditions partially constrained flowering.Comparative analysis of the integrated climate suitability index and actual flowering quantity from 2019 to 2022 revealed consistent upward trends,validating the model’s rationality. Chongqing experienced diverse climatic conditions from December to January,with average temperatures of 3—9 ℃,uneven precipitation distribution,and increasing sunshine duration from west to east.Southeastern Chongqing and northeastern Chongqing exhibited more low⁃temperature days and greater diurnal temperature variations,slightly impacting natural growth.Among climatic factors,temperature suitability outweighed precipitation and sunlight suitability,with overall favorable conditions for wintersweet flowering in Chongqing,though sunlight remained a limiting factor.Overall,the integrated climate suitability during wintersweet’s flowering period in Chongqing is generally favorable,with western Chongqing offering optimal climatic conditions.

Key words: Chimonanthus praecox, Flowering period, Climate suitability

摘要: 在全球气候变暖的影响下,蜡梅生长发育所需的光、温、水等资源产生了变化,开展蜡梅关键生育期的气候适应性研究有助于为蜡梅种植结构的调整提供科学依据。以重庆市北碚区蜡梅开花时生长发育所需的光、温、水条件为基础,基于气候适宜性理论和模糊数学构建了蜡梅的气候适宜度模型,分析重庆市蜡梅开花期的气候适宜性特征,查找重庆市蜡梅潜在种植区,为蜡梅种植结构的调整,以及气候资源的合理利用提供科学依据。结果表明,北碚温度适宜度最高,主要在0.83~0.99,有利于蜡梅开花;降水适宜度在0.45~1.00,较能充分满足蜡梅开花期对水分的需求;日照适宜度最低,平均只有0.28,光照条件对蜡梅开花有一定的影响。对比分析2019—2022年蜡梅开花期的综合气候适宜度与实际蜡梅开花量,其趋势基本一致,都呈上升趋势,说明蜡梅气候适宜度模型较合理,能较好地反映蜡梅气候适宜性。重庆市12月—翌年1月的气候条件复杂多样,平均气温分布在3~9 ℃,降水分布不均,日照时长自西向东逐渐增加。渝东南和渝东北2个区域的低温日数相对较多,且日较差大,对蜡梅自然生长有一定的影响。重庆地区蜡梅生长的气候条件中,气温适宜度>降水适宜度>日照适宜度,气温整体有利于蜡梅开花,而日照对重庆地区蜡梅开花有一定的影响。总的来说,重庆市蜡梅开花期综合气候适宜度比较高,渝西具有适合蜡梅开花的最优气候条件。

关键词: 蜡梅, 开花期, 气候适宜性

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