Long-Term Irrigation Deficits Impair Microbial Diversity and Soil Quality in Arid Maize Fields DOI Creative Commons

Dongdong Zhong,

Renhua Sun,

Zhen Huo

и другие.

Agronomy, Год журнала: 2025, Номер 15(6), С. 1355 - 1355

Опубликована: Май 31, 2025

Water scarcity in arid regions poses a severe threat to agricultural sustainability, necessitating optimized irrigation strategies. This study investigates the cumulative impacts of long-term deficits on soil quality, microbial diversity, and maize yield fields Xinjiang, China, where consistent patterns have been maintained over multiple years. Seven sites were monitored from April 2023 March 2024, with single end-of-cycle sampling 2024. Using Irrigation Deficit Index (IWDI), classified into low (LD, 16.37–22.30%), moderate (MD, 30.54–38.10%), high drought (HD, 47.49–50.00%) categories. The findings reveal that exacerbate salinization, compaction, nutrient loss, organic matter declining significantly under HD conditions. Bacterial richness increased by ~6% HD, driven stress-tolerant taxa, while fungal diversity decreased 14–50%, impairing cycling functions critical for health. Soil Quality (SQI) declined severity (LD > MD 26.18% 21.05%; LD 45.02% 13.13%), highlighting pivotal role sustained maintaining productivity. These results underscore need tailored management regions, such as precision drip irrigation, mitigate degradation sustain yields, providing scientific foundation optimizing water use efficiency water-scarce agroecosystems regimes.

Язык: Английский

Long-Term Irrigation Deficits Impair Microbial Diversity and Soil Quality in Arid Maize Fields DOI Creative Commons

Dongdong Zhong,

Renhua Sun,

Zhen Huo

и другие.

Agronomy, Год журнала: 2025, Номер 15(6), С. 1355 - 1355

Опубликована: Май 31, 2025

Water scarcity in arid regions poses a severe threat to agricultural sustainability, necessitating optimized irrigation strategies. This study investigates the cumulative impacts of long-term deficits on soil quality, microbial diversity, and maize yield fields Xinjiang, China, where consistent patterns have been maintained over multiple years. Seven sites were monitored from April 2023 March 2024, with single end-of-cycle sampling 2024. Using Irrigation Deficit Index (IWDI), classified into low (LD, 16.37–22.30%), moderate (MD, 30.54–38.10%), high drought (HD, 47.49–50.00%) categories. The findings reveal that exacerbate salinization, compaction, nutrient loss, organic matter declining significantly under HD conditions. Bacterial richness increased by ~6% HD, driven stress-tolerant taxa, while fungal diversity decreased 14–50%, impairing cycling functions critical for health. Soil Quality (SQI) declined severity (LD > MD 26.18% 21.05%; LD 45.02% 13.13%), highlighting pivotal role sustained maintaining productivity. These results underscore need tailored management regions, such as precision drip irrigation, mitigate degradation sustain yields, providing scientific foundation optimizing water use efficiency water-scarce agroecosystems regimes.

Язык: Английский

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