西部扰动的趋势和频率分析及其对喜马偕尔邦索兰县主要农作物的影响

Q3 Agricultural and Biological Sciences

Journal of Agrometeorology Pub Date : 2024-06-01 DOI:10.54386/jam.v26i2.2342

Prakriti Dadial, Mohan Singh, Purnima Mehta

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引用次数: 0

摘要

这项研究旨在考察西部扰动（WD）的趋势和频率分布及其对喜马偕尔邦索兰地区农作物生长的影响。研究收集了 1971-2021 年期间的日降雨量数据。结果显示，在这 50 年间，西部扰动最早出现在喜马偕尔邦索兰地区的 10 月份，最晚出现在 5 月份。WD 持续时间为 1 至 5 天。持续 1 天的 WD 在 5 月份最多（89 次），在 11 月份最少（21 次）。根据 Man-Kendall 和 Sen 的斜率估计分析，每年的 WD 数量呈上升趋势，Z=2.62，Q=0.47。确定性系数解释了不同作物在生长发育阶段 WD 数量与生产率之间的正相关关系，而在成熟阶段则表现为负相关关系。

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Trend and frequency analysis of western disturbances and its impact on major crops of Solan district of Himachal Pradesh

The study was conducted to examine the trend and frequency distribution of western disturbances (WD) and their effect on crops grown in Solan district of Himachal Pradesh. The daily rainfall data was collected for the period of 1971–2021. The results revealed that during the period of 50 years, the WD arrived as early as in the month of October and occurred as late as in May in the Solan district of Himachal Pradesh. The duration of WD persisted for 1 to 5 days. The number of WD with 1 day duration was found to be highest in May (89) and lowest during the month of November (21). The Man-Kendall and Sen’s slope estimator analysed an annual increasing trend of Z=2.62 number of WD year-1 and Q=0.47 number of WD year-1. The deterministic coefficient explained the positive relationship between the number of WD and productivity at the development stage while showing a negative relationship at the maturity stage of different crops.

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来源期刊

Journal of Agrometeorology 农林科学-农艺学

CiteScore

1.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Agrometeorology (ISSN 0972-1665) , is a quarterly publication of Association of Agrometeorologists appearing in March, June, September and December. Since its beginning in 1999 till 2016, it was a half yearly publication appearing in June and December. In addition to regular issues, Association also brings out the special issues of the journal covering selected papers presented in seminar symposia organized by the Association.