通过优化整合水-氮-碳关系的农业资源，在农业生态系统中实现可持续目标。
Achieving sustainable goals in agroecosystems through the optimization of agricultural resources integrating the water-nitrogen-carbon nexus.
作者信息
Li Mo, Zhang Pingan, Yang Aizheng, Wang Xiaofang, Sha Yan, Fu Qiang
机构信息
School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang 150030, China.
Heilongjiang Province Key Laboratory of Smart Water Network, Northeast Agricultural University, Harbin, Heilongjaing 150030, China.
出版信息
iScience. 2025 Feb 25;28(3):112101. doi: 10.1016/j.isci.2025.112101. eCollection 2025 Mar 21.
This study investigates the synergistic utilization of straw, water, and nitrogen resources in agricultural ecosystems to optimize sustainable management practices. Focusing on a tomato-corn-soybean agroecosystem, the research quantifies the interactions within the water-nitrogen-carbon nexus and evaluates various straw utilization strategies. Results show that, under optimized water (196-157-123 mm) and nitrogen (207-236-84 kg/ha) conditions, the water and carbon footprints decreased by 2.25-5.46% and 3.37-13.82%, respectively, compared to local practices. Economic benefits and overall quality improved by 8.27-21.06% and 4.06-7.63%, respectively. Prioritizing straw return to the field and straw biochar preparation scenarios enhanced system coordination by 1.41-9.62%. These findings offer valuable insights for decision-makers, providing strategies for sustainable agriculture that balance resource optimization, food security, and environmental protection.
本研究调查了农业生态系统中秸秆、水和氮资源的协同利用，以优化可持续管理实践。以番茄-玉米-大豆农业生态系统为重点，该研究量化了水-氮-碳关系中的相互作用，并评估了各种秸秆利用策略。结果表明，在优化的水（196-157-123毫米）和氮（207-236-84千克/公顷）条件下，与当地实践相比，水足迹和碳足迹分别下降了2.25-5.46%和3.37-13.82%。经济效益和整体质量分别提高了8.27-21.06%和4.06-7.63%。优先考虑秸秆还田和秸秆生物炭制备方案可使系统协调性提高1.41-9.62%。这些发现为决策者提供了有价值的见解，为可持续农业提供了平衡资源优化、粮食安全和环境保护的策略。
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