Characteristics of soil organic nitrogen fractions under vegetation restoration in karst areas.

Sci Rep · 2025 · PMC12317007 · PMID 40750780

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a decreasing trendno p-value reported

an increasing trendno p-value reported

In the 5–20 cm soil layer, the acid-hydrolyzable nitrogen content shows an increasing trend, while the non-acid-hydrolyzable nitrogen content shows a decreasing trend.

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