Microbial regulation of soil nitrogen dynamics along a stand density gradient of Mongolian pine plantations

Drivers of Biological Nitrogen Fixation in Paddy Soils: Linking Soil Properties, Diazotrophic Communities, and Nitrogen Dynamics

Biological Nitrogen Fixation (BNF) is a sustainable alternative to synthetic fertilizers that deliver bioavailable nitrogen to rice fields. However, the spatial variability of BNF and the relative contributions of soil physicochemical properties and trace-element availability remain poorly understood in long-term culti...

Contrasting tree growth and soil organic carbon across stand densities in a Picea crassifolia plantation: associations with soil nitrogen

Introduction Stand density can influence both tree growth and belowground carbon storage in plantations, but density conditions favorable for these two functions may not necessarily coincide. Methods We investigated a Picea crassifolia plantation in the Qilian Mountains under five stand-density conditions with nominal...

Effect of Stand Density on Soil Microbial Carbon and Nitrogen Use Efficiency in Robinia pseudoacacia Plantations in the Loess Hilly‐Gully Region, China

Soil microbial carbon (CUE) and nitrogen (NUE) use efficiency are critical for soil carbon (C) sequestration and nitrogen (N) availability. However, how microbial CUE and NUE respond to stand density is unclear. Furthermore, it remains unclear whether the response of microbial CUE and NUE to stand density could be...

Temporal soil nitrogen dynamics with stand age of Betula platyphylla forests in the permafrost region of Northeast China

Nitrogen (N) is a key nutrient regulating plant growth, forest productivity and ecosystem functioning in permafrost regions. Despite the critical role of succession in modifying soil N processes, how soil N dynamics respond to mid-successional Betula platyphylla forest development remains poorly understood. This...

Nitrogen deposition alters plant community and physiological traits via soil acidification and phosphorus limitation in an alpine meadow of the Qinghai-Tibet Plateau

Soil development constrains N availability through regulating N cycling in subtropical karst regions.

Soil development profoundly shapes the physical, chemical, and biological properties of soils, yet its role in regulating nitrogen (N) cycling and shaping ecological succession remains underexplored. This gap is especially critical for large-scale ecological restoration, where similar climatic and geologic backgrounds...