Nutrient losses due to water erosion using simulated rainfall in southern Brazil

Nutrient and sediment losses under simulated rainfall following manure incorporation by different methods.

Incorporation of manure into cultivated soils is generally recommended to minimize nutrient losses. A 3-yr study was conducted to evaluate sediment and nutrient losses with different tillage methods (moldboard plow, heavy-duty cultivator, double disk, and no-incorporation) for incorporation of beef cattle manure in a silage barley (Hordeum vulgare L.) cropping system. Runoff depths, sediment lo...

Unexpected High Losses of Anopheles gambiae Larvae Due to Rainfall

BACKGROUND Immature stages of the malaria mosquito Anopheles gambiae experience high mortality, but its cause is poorly understood. Here we study the impact of rainfall, one of the abiotic factors to which the immatures are frequently exposed, on their mortality. METHODOLOGY/PRINCIPAL FINDINGS We show that rainfall significantly affected larval mosquitoes by flushing them out of their aquatic...

Impact of Rainfall Microstructure on Erosivity and Splash Soil Erosion Under Simulated Rainfall

Comparison of wind erosion measurements in Germany with simulated soil losses by WEPS

The Wind Erosion Prediction System (WEPS) is a process-based model that simulates daily weather and field conditions along with hourly wind speeds and erosion. Its physical basis should allow model application to regions outside the US for which it was originally developed. The objective of this study was to compare results from measured wind erosion with simulated soil losses as a first exampl...

Nutrient Stocks in Tasmanian Vegetation and Approximate Losses Due to Fire

Previously published data on the mass and concentration of major nutrients in Tasmanian vegetation types are presented in common units. The losses of nutrients in intensely hot wild-fires occurring once or twice a century are calculated and used to estimate losses in more frequent but less intense fires. Potential losses from consumed foliage and litter and from erosion and leaching of ash post...