A case study of energy use and economical analysis of irrigated and dryland wheat production systems

被引：137

作者：

Ghorbani, Reza ^{[1
]}

Mondani, Farzad ^{[1
]}

Amirmoradi, Shahram ^{[1
]}

Feizi, Hassan ^{[1
]}

Khorramdel, Surror ^{[1
]}

Teimouri, Mozhgan ^{[1
]}

Sanjani, Sara ^{[1
]}

Anvarkhah, Sepideh ^{[1
]}

Aghel, Hassan ^{[1
]}

机构：

[1] Ferdowsi Univ Mashhad, Fac Agr, Mashhad, Iran

来源：

APPLIED ENERGY | 2011年 / 88卷 / 01期

关键词：

Cereals; Energy efficiency; Low-input systems; Rain-fed; Triticum aestivum; COTTON PRODUCTION; TOKAT PROVINCE; SUGAR-BEET; BALANCE; IRAN;

D O I：

10.1016/j.apenergy.2010.04.028

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Current conventional agricultural systems using intensive energy has to be re-vitalized by new integrated approaches relying on renewable energy resources, which can allow farmers to stop depending on fossil resources. The aim of the present study was to compare wheat production in dryland (low input) and irrigated (high input) systems in terms of energy ratio, energy efficiency, benefit/cost ratio and amount of renewable energy use. Data were collected from 50 irrigated and 50 dryland wheat growers by using a face-to-face questionnaire in 2009. The results showed that the total energy requirement under low input was 9354.2 MJ ha(-1), whereas under high input systems it was 45367.6 MJ ha(-1). Total energy input consumed in both dryland and irrigated systems could be classified as direct, indirect, renewable and non-renewable energies which average in two wheat production systems were 47%, 53%, 24% and 76%. respectively. Energy ratios of 3.38 in dryland and 1.44 in irrigated systems were achieved. The benefit-cost ratios were 2.56 in dryland and 1.97 in irrigated wheat production systems. Based on the results of the present study, dry-land farming can have a significant positive effect on energy-related factors especially in dry and semi-dry climates such as Iran. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：283 / 288

页数：6

共 29 条

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