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| Carbon emission characteristics，decoupling effect and driving factors of potato production in northern first crop area |
| Received:October 24, 2024 |
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| KeyWord:low-carbon agriculture;potato;carbon emission reduction;Tapio decoupling model;Logarithmic mean divisia index（LMDI） model |
| Author Name | Affiliation | E-mail | | MENG Yubo | College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China | | | WANG Naijia | College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China | | | MIAO Jingjie | Hebei Provincial Meteorological Administrative & Technical Service Center, Shijiazhuang 050021, China | | | ZENG Ping | College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China | | | SU Yajun | College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China | | | HE Minghui | Shenyang Hunnan District Meteorological Service, Shenyang 110186, China | | | GAO Xining | College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China
Shenyang Academy of Agricultural and Ecological Meteorology, Shenyang 110166, China | | | WANG Liwei | College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China
Shenyang Academy of Agricultural and Ecological Meteorology, Shenyang 110166, China | wlw@syau.edu.cn |
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| Abstract: |
| This paper conducts an in-depth exploration of the characteristics of carbon emissions, the decoupling effect, and the driving factors related to potatoes in the single-cropping region of northern China. The research is based on the authentic data from 2000 to 2020. The carbon emissions of potatoes are calculated using the IPCC emission factor coefficient method. Subsequently, the emission characteristics are analyzed. To analyze the decoupling characteristics of potato carbon emissions in the single-cropping region of northern China, the Tapio model is employed. The driving factors of potato carbon emissions are identified according to the Logarithmic mean divisia index（LMDI）model. The results are as follows：From 2000 to 2020, the carbon emissions of potatoes in the single-cropping region of northern China demonstrated a trend of initially increasing and then decreasing. Among different regions, the northwest region had the highest carbon emissions, followed by the North China region. The Northeast region had the lowest carbon emissions. During the research period, a cumulative reduction of 3.32 × 105 tons of carbon emissions was achieved.Chemical fertilizers were the most prominent carbon source for potato carbon emissions. They accounted for a cumulative proportion of 42.25% of the total carbon emissions. In descending order, irrigation, agricultural plastic films, diesel oil, and pesticides followed, with cumulative carbon emission proportions of 35.25%, 10.34%, 9.02%, and 4.14% respectively. Throughout the research period, the decoupling state of potatoes in the single-cropping region of northern China was mainly characterized by strong decoupling and weak decoupling. This implies that the output value of the potato industry was on an upward trend, while carbon emissions were on a downward trend. Even when carbon emissions increased, their growth rate was lower than that of the output value of the potato industry. Overall, the potato industry and the carbon emission situation were in a favorable state of development. Factors such as potato production measures, potato production efficiency, and the proportion of potato production had a positive impact on potato carbon emissions. Conversely, the output value of crop production exerted a negative influence. These factors generally formed a balanced state similar to "hedging". Optimizing the water and fertilizer management mode is a crucial measure for reducing carbon emissions in potato cultivation in the single-cropping region of northern China. Optimizing the production structure of the planting industry and enhancing the low-carbon development of potatoes will be the key to achieving low-carbon agriculture. |
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