马哈拉施特拉邦马拉特瓦达地区关键干旱期的概率分析,用于规划气候适应型种植模式

IF 0.9 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
Kishor P. Gavhane, Sunil Kumar Rathod, Bhaskar Wamanrao Bhuibhar, Ankita R Verma, N. C. Pradhan
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引用次数: 0

摘要

一段时间的干燥天气可以作为水分压力存在的情况的指示,它可以帮助减少经济损失。事先了解干旱期的开始和持续时间对雨养农业至关重要,因为它有助于决定适当的作物类型或品种,规划灌溉以及做出与气候有关的决策。本研究分析了1981年至2015年印度马哈拉施特拉邦马拉特瓦达地区8个地区的日降雨量和蒸发量数据,以确定有效季风(OEM)开始、退出、临界干旱期(CDS)的平均日期及其持续时间。此外,使用Gumbel极值分布确定了20%、40%、60%和80%概率水平下CDS的持续时间。研究表明,最早的原始气候(6月18日)是在Hingoli和Parbhani站观测到的,这表明这些地区的雨季比其他地区更长。最长的CDS持续时间(28天)记录在Osmanabad站,表明季风季节较短。此外,Jalna站经历了最多的CDS(86),使其最容易受到作物歉收的影响。本研究还对CDS在不同水平下的持续时间进行了概率分析。本研究采用的方法有可能应用于具有类似农业气候条件的其他地区。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PROBABILITY ANALYSIS OF CRITICAL DRY SPELLS OF MARATHWADA REGION OF MAHARASHTRA STATE FOR PLANNING CLIMATE RESILIENT CROPPING PATTERNS
A period of dry weather can serve as an indication of situations where moisture stress is present, and it can help in reducing economic losses. Having prior knowledge about the start and duration of dry spells is crucial for rain-fed agriculture, as it aids in deciding the appropriate crop type or variety, planning irrigation, and making climate-related decisions. This study analyzed the daily data of rainfall and evaporation from 1981 to 2015 to determine the average dates of the onset of the effective monsoon (OEM), its withdrawal, critical dry spells (CDS), and their duration in eight districts located in the Marathwada region of Maharashtra, India. Additionally, the duration of CDS at 20, 40, 60, and 80 percent probability levels was determined using Gumbel's extreme value distribution. The study revealed that the earliest OEM (18th June) was observed at the Hingoli and Parbhani stations, indicating that the rainy season in these areas is longer compared to others. The longest CDS duration (28 days) was recorded at the Osmanabad station, suggesting a shorter monsoon season. Furthermore, the Jalna station experienced the highest number of CDS (86), making it the most susceptible to crop failures. The study also conducted a probability analysis of CDS duration at different levels. The methodology employed in this study could potentially be applied in other regions with similar agro-climatic conditions.
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来源期刊
CiteScore
1.60
自引率
36.40%
发文量
0
审稿时长
8.6 months
期刊介绍: Environmental Engineering and Management Journal is an international journal that publishes reviewed original research papers of both experimental and theoretical nature in the following areas: environmental impact assessment; environmental integrated management; risk assessment and management; environmental chemistry; environmental protection technologies (water, air, soil); pollution reduction at source and waste minimization; chemical and biological process engineering; cleaner production, products and services; sensors in environment control; sources of radiation and protection technologies; waste valorization technologies and management; environmental biotechnology; energy and environment; modelling, simulation and optimization for environmental protection; technologies for drinking and industrial water; life cycle assessments of products; environmental strategies and policies; cost-profitt analysis in environmental protection; eco-industry and environmental market; environmental education and sustainable development. Environmental Engineering and Management Journal will publish: original communications describing important new discoveries or further developments in the above-mentioned topics; reviews, mainly of new rapidly developing areas of environmental protection; special themed issues on relevant topics; advertising.
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