生产(经济)
温室气体
农业经济学
业务
农业科学
环境科学
农业
利润(经济学)
农业工程
自然资源经济学
经济
工程类
地理
生物
宏观经济学
考古
微观经济学
生态学
作者
Qingyue Cheng,Liangyu Li,Qin Liao,Hao Fu,Jiangxia Nie,Yongheng Luo,Zhonglin Wang,Huilai Yin,Chuanhai Shu,Zongkui Chen,Yongjian Sun,Jun Ma,Na Li,Zhiyuan Yang
出处
期刊:Energy
[Elsevier BV]
日期:2023-08-11
卷期号:283: 128753-128753
被引量:8
标识
DOI:10.1016/j.energy.2023.128753
摘要
In this study, field data from 148 farmers were combined with energy equivalents, greenhouse gas emission factors, and product prices obtained from the literature and official statistics to evaluate and compare the energy use, environmental impact, and economic benefits between smallholders' rice production mode (SHM) and scale rice production modes (Big grain growers' rice production mode; Micro cooperatives’ rice production mode). Compared with SHM, the scale rice production modes increased the net energy by 425.02 MJ ha −1 –13148.29 MJ ha −1 , increased the energy use efficiency by 16.85%–22.89%, increased the net economic return by 15.67 USD ha −1 –531.31 USD ha −1 , increased the net profit-to-labor use ratio by 26.02%–393.87%, decreased the global warming potential (GWP) by 19.48%–27.23%, and decreased the yield-scaled GWP by 19.93%–29.50%. These results demonstrate that the scale rice production modes can satisfy the needs of reduced labor inputs, energy conservation, emission reduction, and increased profitability of rice production, thereby promoting sustainable and low-carbon development of the agricultural industry in China. Based on these findings, it is recommended that the government increase its support for developing scale rice production modes and encourage farmers to take equity in their lands or lease them to micro cooperatives for more efficient production. • The performance of scale rice production modes in China is unknown. • To evaluate the performance of three rice production modes. • Scale rice production modes reduce energy input and greenhouse gas emissions. • Scale rice production modes ensure rice yield and increase the economic income. • It is recommended that government and farmers develop scale rice production modes.
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