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Enhancing the coupling coordination of soil–crop systems by optimising soil properties and crop production via subsoiling
Soil and Tillage Research ( IF 6.1 ) Pub Date : 2024-12-31 , DOI: 10.1016/j.still.2024.106438
Jingyi Shao, Ling Liu, Jichao Cui, Hong Yang, Yecheng Zhang, Ruxin Li, Yi Lv, Yifei Ma, Qin Fang, Shengkai Sun, Siyu Chen, Huifang Han
Soil and Tillage Research ( IF 6.1 ) Pub Date : 2024-12-31 , DOI: 10.1016/j.still.2024.106438
Jingyi Shao, Ling Liu, Jichao Cui, Hong Yang, Yecheng Zhang, Ruxin Li, Yi Lv, Yifei Ma, Qin Fang, Shengkai Sun, Siyu Chen, Huifang Han
Subsoiling is a well-known practice for improving soil structure, increasing soil nutrient content and enhancing crop growth. However, studies applying the coupling coordination analysis (CCA) model to reflect the coupling coordination between soil properties and crop production via subsoiling are still scarce. This study used the CCA to analyse the coupling coordination between soil properties and yield based on a long-term tillage positioning experiment. Tillage treatments included subsoiling (SS35 and SS40—subsoiling shovel) and rotary tillage (RT15—harrow blade, control). Soil pore structure was analysed using X-ray computed tomography and mercury injection tests. Results showed that SS35 and SS40 increased the macropore area by 82.0 %–130.7 % and the cumulative pore volume by 47.8 %–62.1 % in the 20–40 cm soil layer compared to RT15. This led to a 1.3 %–1.8 % increase in soil macro-aggregates, 9.0 %–14.5 % increase in mean weight diameter and 6.9 %–12.1 % increase in geometric mean diameter in case of SS35 and SS40 compared to RT15. These results indicated that subsoiling significantly enhanced the pore characteristics and aggregate stability in the 20–40 cm soil layer. The impact of SS40 on soil pore properties and aggregate stability surpassed that of SS35. As a result, SS35 and SS40 significantly increased carbon sequestration by 2.4 %–14.5 % and maize yield by 8.9 %–11.9 % compared to RT15. The CCA model analysis showed that SS35 and SS40 increased the coupling coordination (D) between soil properties and crop production compared to RT15, especially in the 30–40 cm soil layer. The D value was 0.617–0.899 for SS35 and 0.631–0.817 for SS40. This study provides new insights into quantifying the role of tillage for multi-indicators in the soil–crop system. The findings will guide policymakers in formulating for more sustainable tillage to improve crop production and ensure carbon mitigation.
中文翻译:
通过深松优化土壤特性和作物生产,增强土壤-作物系统的耦合协调
深松是改善土壤结构、增加土壤养分含量和促进作物生长的众所周知的做法。然而,应用耦合协调分析 (CCA) 模型来反映土壤特性与通过深松作物生产之间的耦合协调的研究仍然很少。本研究基于长期耕作定位实验,使用 CCA 分析了土壤性质与产量之间的耦合协调。耕作处理包括深松(SS35 和 SS40 - 深松铲)和旋耕(RT15 - 耙片,对照)。使用 X 射线计算机断层扫描和汞注射测试分析土壤孔隙结构。结果表明,与 RT15 相比,SS35 和 SS40 在 20–40 cm 土层中增加了 82.0 %–130.7 %,累积孔隙体积增加了 47.8 %–62.1 %。与 RT15 相比,这导致土壤大团聚体增加了 1.3 %–1.8 %,平均重量直径增加了 9.0 %–14.5 %,几何平均直径增加了 6.9 %–12.1 %。这些结果表明,深松显著增强了 20–40 cm 土层的孔隙特性和团聚体稳定性。SS40 对土壤孔隙性质和团聚体稳定性的影响超过了 SS35。结果,与 RT15 相比,SS35 和 SS40 显著增加了 2.4 %–14.5 % 的碳封存率,玉米产量提高了 8.9 %–11.9 %。CCA 模型分析表明,与 RT15 相比,SS35 和 SS40 增加了土壤特性与作物生产之间的耦合协调 (D),尤其是在 30-40 cm 土壤层中。SS35 的 D 值为 0.617-0.899,SS0.631-0.817 的 D 值为 40。本研究为量化耕作对土壤-作物系统中多指标的作用提供了新的见解。 研究结果将指导政策制定者制定更可持续的耕作方式,以提高作物产量并确保碳减排。
更新日期:2024-12-31
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
通过深松优化土壤特性和作物生产,增强土壤-作物系统的耦合协调
深松是改善土壤结构、增加土壤养分含量和促进作物生长的众所周知的做法。然而,应用耦合协调分析 (CCA) 模型来反映土壤特性与通过深松作物生产之间的耦合协调的研究仍然很少。本研究基于长期耕作定位实验,使用 CCA 分析了土壤性质与产量之间的耦合协调。耕作处理包括深松(SS35 和 SS40 - 深松铲)和旋耕(RT15 - 耙片,对照)。使用 X 射线计算机断层扫描和汞注射测试分析土壤孔隙结构。结果表明,与 RT15 相比,SS35 和 SS40 在 20–40 cm 土层中增加了 82.0 %–130.7 %,累积孔隙体积增加了 47.8 %–62.1 %。与 RT15 相比,这导致土壤大团聚体增加了 1.3 %–1.8 %,平均重量直径增加了 9.0 %–14.5 %,几何平均直径增加了 6.9 %–12.1 %。这些结果表明,深松显著增强了 20–40 cm 土层的孔隙特性和团聚体稳定性。SS40 对土壤孔隙性质和团聚体稳定性的影响超过了 SS35。结果,与 RT15 相比,SS35 和 SS40 显著增加了 2.4 %–14.5 % 的碳封存率,玉米产量提高了 8.9 %–11.9 %。CCA 模型分析表明,与 RT15 相比,SS35 和 SS40 增加了土壤特性与作物生产之间的耦合协调 (D),尤其是在 30-40 cm 土壤层中。SS35 的 D 值为 0.617-0.899,SS0.631-0.817 的 D 值为 40。本研究为量化耕作对土壤-作物系统中多指标的作用提供了新的见解。 研究结果将指导政策制定者制定更可持续的耕作方式,以提高作物产量并确保碳减排。