The work is devoted to the study of granulometric composition soils 120-year and 240-year agricultural development meadow-steppe landscape on example Belgorod region. In lateral distribution silt fraction contained in arable horizon, a significant increase its proportion lower parts soil catenas arable, for variations are less noticeable. averaged values content over slope profiles land showed ...

Soil carbon and nitrogen contents play an important role in sustaining soil physical and chemical quality and help to have healthy environments. The continues conversion of rangelands to arable lands has the potential to change carbon and nitrogen sequestration. In this study to evaluate the effects of land use change on soil organic carbon and nitrogen stock, forty samples collected from north...

Modern agriculture, in seeking to maximize yields to meet growing global food demand, has caused loss of soil organic carbon (SOC) and compaction, impairing critical regulating and supporting ecosystem services upon which humans also depend. Own-growing makes an important contribution to food security in urban areas globally, but its effects on soil qualities that underpin ecosystem service pro...

The article describes the chemical composition of newly irrigated, developed sandy-desert, old-irrigated alluvial-meadow, newly-irrigated gray-brown-meadow, gray-earth-meadow soils, common in lower and middle reaches Zarafshan River, decrease amount nutrients soil under influence anthropogenic factors. In arable subarable layers old irrigated meadow-alluvial humus is 0.859-0.971% 0.715-0.894%, ...

In many intensive agroecosystems continued inputs of phosphorus (P) over many years can significantly increase soil P concentrations and the risk of P loss to surface waters. For this study we used solid-state 31P nuclear magnetic resonance (NMR) spectroscopy, high-power decoupling with magic angle spinning (HPDec-MAS) NMR, and cross polarization with magic angle spinning (CP-MAS) NMR to determ...

......................................................................................................... 4 EXECUTIVE SUMMARY........................................................................................... 6 1. BACKGROUND ............................................................................................. 8 2. TERMS OF REFERENCE..................................................