DETERMINING IRRIGATION REQUIREMENTS FOR VEGETABLES AND SUGARCANE IN JAMAICA

Irrigation and drainage (International Commission on Irrigation and Drainage) Pub Date : 2014-07-01 DOI:10.1002/ird.1811

J. Richards, C. Madramootoo, M. Goyal

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引用次数: 4

Abstract

Currently, only 10% of the cultivated lands in Jamaica are irrigated, and as a result farmers are highly dependent on seasonal rainfall. For this reason, a study was undertaken in order to determine monthly irrigation requirements for three study sites, for both vegetables and sugarcane. A proper scientific methodology was applied to achieve this information on crop water requirements in Jamaica for the first time. In addition, the cumulative frequencies of monthly and seasonal rainfall depths were analyzed, and this information used to develop monthly rainfall values, as well as seasonal rainfall values for different return periods for the sites. Each study site was found to be unique in its irrigation requirements, which highlights the climatic and soil variability across the island. However, all three sites were similar in their need for irrigation during the months of March and April for vegetables, signifying that this is a universally dry period across the island. This information is meant to provide a foundation for irrigation planning and water management strategies during water‐scarce conditions. Copyright © 2014 John Wiley & Sons, Ltd.

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确定牙买加蔬菜和甘蔗的灌溉需求

目前，牙买加只有10%的耕地得到灌溉，因此农民高度依赖季节性降雨。为此，进行了一项研究，以确定三个研究地点蔬菜和甘蔗的每月灌溉需求。首次采用了适当的科学方法来获得牙买加作物需水量的这一信息。此外，还分析了月降水深度和季节降水深度的累积频率，并利用这些信息建立了月降雨量值，以及不同回归期的季节降雨量值。每个研究地点都有其独特的灌溉需求，这突出了整个岛屿的气候和土壤可变性。然而，这三个地点在3月和4月对蔬菜的灌溉需求相似，这表明这是全岛普遍干旱的时期。这些信息旨在为缺水条件下的灌溉规划和水管理策略提供基础。版权所有©2014 John Wiley & Sons, Ltd。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Irrigation and drainage (International Commission on Irrigation and Drainage)

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