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Mitigation and Adaptation Strategies for Global Change

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01.05.2021 | Original article

The effect of conservation tillage in managing climate change in arid and semiarid areas—a case study in Northwest China

verfasst von: Lin Dong, Tong Si, Yu-e Li, Xiao-Xia Zou

Erschienen in: Mitigation and Adaptation Strategies for Global Change | Ausgabe 4/2021

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Abstract

Climate change and agriculture are strongly related. The management of farmland can influence a variety of agro-ecological processes and affect greenhouse gas (GHG) emission. Based on reported data, this study conducted a meta-analysis to evaluate the role of conservation tillage (CT) in managing climate change in Northwest China. The results indicated that CT significantly improved the concentration of soil organic carbon (SOC), crop yields, and crop water use efficiency (WUE) compared with traditional tillage, and the practices with straw return were significantly higher than those without straw return. With an extended duration of the management, the SOC sequestration of each CT practice showed an increasing trend, but the crop yield did not show an obvious trend. After 5 ~ 10 years and more than 10-year management, CT practices reduced GHG emissions by 5.40 ~ 16.16 t CO₂-eq∙ha⁻¹ and 8.22 ~ 21.53 t CO₂-eq∙ha⁻¹ compared to traditional tillage, respectively. In most CT practices, winter wheat-summer maize rotation (W-M) planting pattern had the best SOC sequestration, and spring wheat showed the highest increasing of yield and WUE. More specifically, compared to traditional tillage, the SOC concentration under W-M increased by 10.15 ~ 20.09%, and the yield and WUE under spring wheat increased by 6.87 ~ 17.83% and 8.82 ~ 46.32%, respectively. In conclusion, CT played a positive role in tackling climate change in Northwest China.

Vorheriger Artikel Participatory multi-criteria methods for adaptation to climate change

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Titel: The effect of conservation tillage in managing climate change in arid and semiarid areas—a case study in Northwest China
verfasst von: Lin Dong
Tong Si
Yu-e Li
Xiao-Xia Zou
Publikationsdatum: 01.05.2021
Verlag: Springer Netherlands
Erschienen in: Mitigation and Adaptation Strategies for Global Change / Ausgabe 4/2021
Print ISSN: 1381-2386
Elektronische ISSN: 1573-1596
DOI: https://doi.org/10.1007/s11027-021-09956-3

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