| تعداد نشریات | 285 |
| تعداد نشریات سازمان | 83 |
| تعداد شمارهها | 3,139 |
| تعداد مقالات | 34,918 |
| تعداد مشاهده مقاله | 50,384,116 |
| تعداد دریافت فایل اصل مقاله | 90,277,390 |
تعیین تابع تولید انرژی محصولات زراعی منطقه سیستان | ||
| پژوهش های کاربردی زراعی | ||
| دوره 36، شماره 4 - شماره پیاپی 141، اسفند 1403، صفحه 89-74 اصل مقاله (491.92 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/aj.2025.366596.1680 | ||
| نویسندگان | ||
| علی سردارشهرکی* 1؛ ندا علی احمدی2 | ||
| 1دانشیار اقتصاد کشاورزی، دانشگاه سیستان و بلوچستان، زاهدان، ایران | ||
| 2دکتری اقتصاد کشاورزی، دانشگاه سیستان و بلوچستان، زاهدان، ایران | ||
| چکیده | ||
| انرژی در بخش کشاورزی و زراعی بسیار حایز اهمیت میباشد. این بخش میتواند سهم عمدهایی از مصرف انرژی را به خود اختصاص دهد. از طرفی بخش زراعی در منطقه سیستان بدلیل خشکسالی های اخیر، وارد تنشهای زیادی شده و بررسی توابع انرژی آن ضرورت دارد. از اینرو در این پژوهش، تعیین تابع تولید انرژی محصولات زراعی منطقه سیستان مدنظر میباشد. جهت جمعآوری اطلاعات از طریق پرسشنامه از 380 کشاورز اقدام و مدلسازی از طریق تحلیل رگرسیون در نرمافزار EViews9 انجام پذیرفت. متوسط عملکرد محصول و مقدار کل انرژی خروجی محاسبه شده 7/12658 کیلوگرم بر هکتار و 25/187569 مگاژول بر هکتار به دست آمد. همچنین پس از سوخت، انرژی بذر و آبیاری به ترتیب با 09/4582 و 8/2569 مگاژول بیشترین میزان نهاده مصرفی را به خود اختصاص دادهاند. کشش منفی نهاده انرژی آبیاری و انرژی سوخت (06/0-)، انرژی حمل و نقل و سوخت (89/2-) و ماشینآلات و کودشیمیایی (49/0-) نشان میدهد که مصرف این نهادهها وارد ناحیه سوم اقتصادی شده و بیش از حد مصرف میشود. با توجه به نتایج بدست آمده، پیشنهاد میشود که طرح آبیاری با سیستمهای نوین آبیاری از طریث طرح مصوب 46 هزار هکتاری در منطقه مورد توجه جدیتر مسئولین قرار گیرد. | ||
| کلیدواژهها | ||
| تابع تولید؛ انرژی؛ محصولات زراعی؛ منطقه سیستان | ||
| عنوان مقاله [English] | ||
| Determining the energy production function of crops in Sistan region | ||
| نویسندگان [English] | ||
| Ali Sardar Shahraki1؛ Neda Ali Ahmadi2 | ||
| 1Associate Professor of Agricultural Economics, University of Sistan and Baluchestan, Zahedan, Iran | ||
| 22- PhD in Agricultural Economics, University of Sistan and Baluchestan, Zahedan, Iran | ||
| چکیده [English] | ||
| Introduction: On the other hand, currently, the crisis caused by the excessive consumption of materials and energy and the increase in pollution to the ecosystem are considered as challenges facing humans. Since the payment of various subsidies for agricultural inputs, if it is not optimal, it can bring negative effects and excessive costs, including reducing the productivity of production inputs, pollution and destruction of the ecosystem. Considering the low natural resources and the adverse effects of improper use of different energy sources on human health and the ecosystem, it is necessary to examine the pattern of energy consumption in the agricultural sector. Agriculture plays a vital and essential role in the national economy and food production of countries, therefore, the effective use of energy plays an essential role in stabilizing production, optimizing the economic system of preserving fossil fuel reserves and reducing air pollution. Energy analysis in the agricultural sector can be used to evaluate the pressure of human activities on the balance and stability of the existing environment in energy flow patterns and their changes, although the increase in the level of mechanization in the common agricultural systems has increased production, but the energy consumption in the agricultural sector is increasing daily. In addition, the efficiency of energy consumption has decreased Energy is very important in the agricultural sector. This sector can account for a major share of energy consumption. On the other hand, due to the recent droughts, the agricultural sector in the Sistan region has entered into many tensions and it is necessary to investigate its energy functions. Research Methodology: Studying the trend of energy consumption shows that in order to know the technological changes in agriculture, it is possible to evaluate different forms of energy such as water, human power and land that are used in various activities. The agricultural field has always had a great desire to consume energy inputs, and perhaps the main reason for the growth of consumption is its subsidized distribution. Iran's per capita energy consumption in agriculture is 3.3 times the world average. Conclusion and Discussion: Therefore, in this research, determining the energy production function of crops in Sistan region is considered. In order to collect information through a questionnaire from 380 farmers, modeling was done through regression analysis in EViews9 software. The average yield of the product and the calculated amount of total output energy were 12658.7 kg/ha and 187569.25 megajoules/ha. In addition, after fuel, seed energy and irrigation accounted for the highest amount of consumed input with 4582.09 and 2569.8 megajoules, respectively. The negative elasticity of inputs of irrigation energy and fuel energy (-0.06), transport energy and fuel (-2.89) and machinery and chemical fertilizers (-0.49) shows that the consumption of these inputs The third area has become economical and is consumed excessively. According to the obtained results, it is suggested that the irrigation plan with modern irrigation systems, like the approved plan of 46 thousand hectares in the region, should be given more serious attention by the authorities. | ||
| کلیدواژهها [English] | ||
| Production Function, Energy, Crops, Sistan Region | ||
| مراجع | ||
|
| ||
|
آمار تعداد مشاهده مقاله: 280 تعداد دریافت فایل اصل مقاله: 139 |
||