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Chinese Journal of Applied Ecology ›› 2018, Vol. 29 ›› Issue (3): 850-856.doi: 10.13287/j.1001-9332.201803.020

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Carbon footprint of wheat-summer direct-seeding peanut planting system in Shandong Pro-vince, China.

ZOU Xiao-xia, ZHANG Xiao-jun, WANG Yue-fu, WANG Ming-lun*   

  1. Shandong Provincial Key Laboratory of Dryland Farming Technology, Qingdao Agricultural University, Qing-dao 266109, Shandong, China
  • Received:2017-08-22 Online:2018-03-18 Published:2018-03-18
  • Contact: * E-mail: mlwang@qau.edu.cn
  • Supported by:

    This work was supported by the National Science and Technology Support Program (2014BAD11B04), the Special Project of the National Peanut Industrial Technology System Construction (CARS-13-Ecology and Soil Management), the Excellent Scientific Research Innovation Team Construction in Colleges and Universities in Shandong Province (6212n2) and the Innovation Team Construction of Peanut Industry in Shandong Province Modern Agricultural Industry Technology System (SDAIT-05-022-05)

Abstract: Clarifying the carbon emissions in wheat-summer direct-seeding peanut planting (W-P) system could help realize the synergistic effects of high yield and low carbon emissions. Based on whole life cycle method, we constructed a carbon footprint model to calculate the carbon emissions of W-P system. We found that the net income of W-P system was 71.2%-88.3% higher than that of wheat-maize rotation (W-M) system. The carbon emissions per unit area under W-P system was 6977.9-8018.5 kg·hm-2, being 6.2% higher than that of W-M system. The carbon emission of per net income under W-P system was 0.23-0.28 kg CO2-eq·yuan-1, which was 37.4%-44.1% lower than that of W-M system. Combining the net income and carbon emissions of per net income, W-P system could achieve synergistic effects of high yield and low carbon emissions, which would fulfill the targets of agricultural supply-side structural reform with optimizing supply, enhancing quality and efficiency, and increasing income of peasants.

Key words: wheat-maize planting system, carbon footprint, wheat-summer direct-seeding peanut planting system, greenhouse gas emissions