Meteorological Indexes Analysis of Overwintering Freezing Injury of Kashi Pomegranate

doi:10.11924/j.issn.1000-6850.casb2024-0286

Abstract

Abstract:

Overwintering freezing injury caused by Low temperature is one of the main disasters that restrict the development of forests and fruits. In this paper, through the analysis of the winter meteorological data from 1981 to 2022 years of Kashi National Climate Reference Station and the historical record of freezing disaster investigation, the variation characteristics of different meteorological elements in the overwintering period of pomegranate were studied. Combined with the changes of meteorological elements of freezing injury over the years, the relationship between the occurrence of freezing injury in the overwintering period of pomegranate and meteorological factors was clarified, and the meteorological indexes causing freezing injury in the overwintering period of pomegranate were determined. The results showed that, based on the extreme minimum temperature, duration of low temperature for several days, the drop degree of extreme minimum temperature and the snow depth in winter was the meteorological indicators affecting the safe overwintering of pomegranate in Kashi. This study provides a scientific theoretical basis for the technical measures of safe overwintering and cold prevention of pomegranate in Kashi.

Key words: Kashi, pomegranate, overwintering, freeze injury, meteorological index

NU’ERPATIMAN Maimaitireyimu, GULIMIRE Tuoheti. Meteorological Indexes Analysis of Overwintering Freezing Injury of Kashi Pomegranate[J]. Chinese Agricultural Science Bulletin, 2025, 41(15): 102-109.

Figures/Tables 7

References 23

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冻害发生年份	1985	1992	1995	2002	2006	2008	2012	2013	2017	2018	2021
T≤-15℃的总日数	21	6	11	7	8	17	9	7	14	6	5
T≤-17℃的总日数	13	2	8	1	5	10	6	1	10	2	2
T≤-18℃的总日数	11	2	1	0	1	9	4	0	7	1	2
T≤-20℃的总日数	5	0	0	0	0	6	0	0	0	0	0
T≤-15℃的持续日数	8	3	9	7	5	10	7	3	14	2	2
T≤-17℃的持续日数	3	1	4	1	2	9	5	1	9	0	2
T≤-18℃的持续日数	3	1	1	0	1	2	3	0	7	0	2
T≤-20℃的持续日数	2	0	0	0	0	4	0	0	0	0	0
T≤-22℃的持续日数	0	0	0	0	0	1	0	0	0	0	0

冻害发生年份	1985	1992	1995	2002	2006	2008	2012	2013	2017	2018	2021
T≤-15℃的总日数	21	6	11	7	8	17	9	7	14	6	5
T≤-17℃的总日数	13	2	8	1	5	10	6	1	10	2	2
T≤-18℃的总日数	11	2	1	0	1	9	4	0	7	1	2
T≤-20℃的总日数	5	0	0	0	0	6	0	0	0	0	0
T≤-15℃的持续日数	8	3	9	7	5	10	7	3	14	2	2
T≤-17℃的持续日数	3	1	4	1	2	9	5	1	9	0	2
T≤-18℃的持续日数	3	1	1	0	1	2	3	0	7	0	2
T≤-20℃的持续日数	2	0	0	0	0	4	0	0	0	0	0
T≤-22℃的持续日数	0	0	0	0	0	1	0	0	0	0	0