Influence of different land uses on soil nitrogen transformations after conversion from an Indian dry tropical forest

Effect of soil sealing on the microbial biomass, N transformation and related enzyme activities at various depths of soils in urban area of Beijing, China

“…Reduced availability of carbon and substrates may be the key reason for the decreases in microbial biomass (Nannipieri and Eldor 2009). In addition, moisture stress, alkaline environment and poor ventilation caused by sealing of soils may all contribute to the reduction of microbial biomass (Tripathi and Singh 2009). However, destruction of vegetation and the alteration of soil nutrient status after soil sealing are the main factors affecting the synthesis and activities of soil enzymes (Chakrabarti et al 2000).…”

The impact of the soil sealing degree on microbial biomass, enzymatic activity, and physicochemical properties in the Ekranic Technosols of Toruń (Poland)

“…Additionally, the impermeable materials make the supply of organic debris (e.g., tree leaves and other plant debris) impossible, and this can further reduce the input to the soil organic matter pool. Moreover, moisture stress, alkaline environment, and poor ventilation caused by sealing of soils may all contribute to the reduction in the microbial biomass content and activity (Tripathi and Singh 2009). In turn, destruction of vegetation and the alteration of soil nutrient status after soil sealing are the main factors affecting the synthesis and activities of soil enzymes (Chakrabarti et al 2000).…”

The effects of land use on soil N mineralization during the growing season on the northern Loess Plateau of China

“…Previous studies have documented the details of soil N mineralization processes in grasslands (Zhang et al, 2008;Zhou et al, 2009), forests (Gelfand and Yakir, 2008;Pajuste and Frey, 2003;Vitousek, 2004), and other terrestrial ecosystems (Clark et al, 2009;Miller et al, 2009). Soil N mineralization shows substantial spatial and temporal (seasonal) variations (Gelfand and Yakir, 2008;Pandey et al, 2007;Tripathi and Singh, 2009;Yan et al, 2009). Specifically, N mineralization is generally more intense during the plant growing season, accounting for the majority of mineralized N over the entire year (Gelfand and Yakir, 2008;Zhang et al, 2008;Zhou et al, 2009).…”