Summary
This field-based study investigates how conversion of traditional flooded paddy rice systems to areca nut monoculture in tropical regions alters soil microbial nitrogen cycling. The research indicates that this land use change exacerbates microbial nitrogen limitation through concurrent reductions in both inorganic nitrogen production and immobilisation capacity, as suggested by shifts in microbial community function. The findings imply potential long-term consequences for soil fertility sustainability and plantation productivity under this conversion scenario.
UK applicability
Direct applicability to UK agriculture is limited, as areca nut cultivation is confined to tropical and subtropical climates. However, the mechanistic insights into how land use intensification and monoculture adoption affect soil microbial function and nutrient cycling may inform UK policy discussions on sustainable intensification and soil health in arable and horticultural systems.
Key measures
Soil microbial community composition and function; inorganic nitrogen production rates; nitrogen immobilisation capacity; microbial nitrogen limitation indices
Outcomes reported
The study measured changes in soil microbial nitrogen cycling processes, including inorganic nitrogen production and immobilisation capacity, following conversion of flooded paddy rice systems to areca nut monoculture in tropical regions.
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