Critical Role of the gcd Gene in Enhancing Soil Phosphorus Availability Under Vegetation Restoration in the Mu Us Sandy Land
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Phosphorus (P) is a critical limiting nutrient for plant growth and microbial metabolism in many terrestrial ecosystems, but the global depletion of P reserves poses challenges for soil nutrient cycling. Here, changes and influencing mechanisms of soil phosphorus components and related microbial communities in different vegetation restoration types of Mu Us Sandy Land—bare sandy land (CK), grassland (GL), shrubland (SL), grass and shrubland (GSL), and forest land (FL) were explored. The GSL and FL restoration types exhibited higher SOC levels and enzyme activities, indicating greater microbial activity and nutrient utilization efficiency. The distribution of P‐transforming microbial genes varied among vegetation restoration types, with the phoD gene most abundant in GSL and the gcd gene most abundant in SL. Correlation analyses indicated that the gcd gene, linked to Actinobacteria and Proteobacteria , was strongly associated with the transformation of moderately stable phosphates into plant‐available forms. Mantel test results revealed that phoD gene abundance was significantly correlated with SOC content ( p gcd gene abundance was strongly correlated with NaOH‐Pi ( p p
Ecosystem · Grassland · Nutrient · Phosphorus · Restoration Ecology · Revegetation · Shrubland · Peatlands and Wetlands Ecology · Plant nutrient uptake and metabolism · Soil Carbon and Nitrogen Dynamics
Total Carbon, Organic Carbon, and Organic Matter
Global desertification
Balancing green and grain trade
Changes in soil microbial community structure during long‐term secondary succession
Land reclamation increased labile and moderately labile P fractions and strengthened co‐occurrence network of gcd community in calcareous soils
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