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Chinese Agricultural Science Bulletin ›› 2025, Vol. 41 ›› Issue (35): 88-96.doi: 10.11924/j.issn.1000-6850.casb2025-0130

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Research on Evaluation Indicators Design and Zoning of Climatic Quality of Apples in Northern Region of Xianyang

CHEN Mulan1(), LI Yunxi2(), ZHA Yangliang3, GOU Yaowu4, DUAN Hao5, WU Qiong6, GAO Rui6   

  1. 1 Binzhou Meteorological Bureau, Xianyang, Shaanxi 713500
    2 Liquan County Meteorological Bureau, Xianyang, Shaanxi 713200
    3 Xianyang Horticulture Station, Xianyang, Shaanxi 712000
    4 Pucheng County Fruit Industry Development Center, Weinan, Shaanxi 715500
    5 Yongshou County Meteorological Bureau, Xianyang, Shaanxi 713400
    6 Xunyi County Meteorological Bureau, Xianyang, Shaanxi 711300
  • Received:2025-02-24 Revised:2025-09-18 Online:2025-12-11 Published:2025-12-11

Abstract:

Based on the meteorological observation data of five national basic meteorological stations in northern Xianyang from 1981 to 2020, the relationship between apple growth and meteorological conditions was analyzed, key indicators influencing apple climatic quality(such as average temperature during fruit enlargement, precipitation during fruit enlargement, and sunshine duration during coloring-maturation,etc.)were identified to construct a locally applicable apple climatic quality evaluation system. The comprehensive model of apple climate quality evaluation was established by using analytic hierarchy process, weighted summation method and multiple regression analysis method, and the zoning maps of apple climate quality evaluation in northern Xianyang during 1981-2010 and 1991-2020 were drawn. The results showed that the climate quality of apple in the northern part of Xianyang was always in the “excellent” grade or above during the two periods. Among them, the “extreme excellent” area of apple climate quality from 1991 to 2020 accounted for 58.8% of the northern area of Xianyang. It is mainly distributed on both sides of the river in Changwu and Binzhou, northeast and southeast of Binzhou, west and northeast of Xunyi, central and southern Chunhua, and a small amount of Yongshou. The “excellent” grade area of apple accounts for 41.2 % of the area in the north of Xianyang, which is distributed in other areas except the “extreme excellent” grade area. Compared with 1981-2010, the proportion of “extreme excellent” area did not change, but the spatial difference was obvious. Changwu decreased in a large scale, Binzhou and Yongshou decreased in a small part, and the northeast of Xunyi increased significantly. Under the background of global warming, it is necessary to continuously optimize apple growth management, introduce new varieties, improve meteorological disaster prevention and mitigation capabilities, improve apple quality, and maintain the market competitiveness of Xianyang apple industry.

Key words: apple climate quality, evaluation indicators, analytic hierarchy process, spatial division, northern Xianyang