ABSTRACT

This paper is an extension of the current literature on the impact of climate induced natural disasters on the agricultural sector and the first empirical study that investigates the impact of natural disasters on technical efficiency (TE) of rice (also known as paddy) production in Sri Lanka and elsewhere. Severity and intensity of disasters were measured using data on a number of different natural disasters. Data for 22 districts in Sri Lanka representing two rice growing seasons and three agro-ecological regions for the 18 year period from 2000 were collected. The study employed a stochastic production function approach to examine technical efficiencies of different districts and different agro-ecological regions. The results reveal that drought and flood have a significant negative impact on the TE of rice production and that droughts have had the most severe impact. The disasters have decreased the TE of rice production by 2–5% on average. This study highlights the need to change the policies and resource allocation currently based on the traditional knowledge and beliefs about production efficiency during different seasons and in different agro-ecological regions. Such changes need to reflect the global trend of greater climatic variations resulting from extreme weather conditions.

摘要

本文是当前关于气候诱发的自然灾害对农业部门影响的文献的扩展，也是第一个调查自然灾害对斯里兰卡水稻（也称为稻谷）生产技术效率 (TE) 影响的实证研究。兰卡等地。使用许多不同自然灾害的数据来衡量灾害的严重性和强度。收集了自 2000 年以来 18 年间代表两个水稻生长季节和三个农业生态区的斯里兰卡 22 个地区的数据。该研究采用随机生产函数方法来检验不同地区和不同农业生态区域的技术效率。结果表明，干旱和洪水对水稻生产的TE具有显着的负面影响，干旱的影响最为严重。灾害平均使水稻生产的 TE 降低了 2-5%。本研究强调了改变当前基于不同季节和不同农业生态区域生产效率的传统知识和信念的政策和资源配置的必要性。这种变化需要反映极端天气条件导致气候变化更大的全球趋势。本研究强调了改变当前基于不同季节和不同农业生态区域生产效率的传统知识和信念的政策和资源配置的必要性。这种变化需要反映极端天气条件导致气候变化更大的全球趋势。本研究强调了改变当前基于不同季节和不同农业生态区域生产效率的传统知识和信念的政策和资源配置的必要性。这种变化需要反映极端天气条件导致气候变化更大的全球趋势。