Soil

2.7. Soil erosion modeling For this study a model-based approach was used to assess soil erosion risk. The well-known Universal Soil Loss Equation (USLE) (Wischmeier and Smith, 1978) was used because it is one of the least data demanding erosion models that have been developed and it has been applied widely at different scales. The model is designed to estimate long-term annual erosion rates of agricultural fields. The USLE model as described in Equation 1 was used to predict erosion of each 100…

4520 Improving a Poor Lawn Soil Soil fertility is the foundation for healthy grass. Improving soil quality can be more challenging on an established lawn rather than growing a new one. The most important thing for soil is air and water and their ability to be absorbed by the roots. This helps nutrients to be absorbed also. A degraded soil typically loses its ability to supply food and habitation to living organisms, in it’s surrounding. Characteristics of a degraded soil could be high salinity,…

objective of the experiment is to explore the process of simple analysis techniques and representative sampling in determining soil nutrient levels. Soil samples collected from Flinders Campus were used to determine their pH, salinity, ammonium, nitrate, phosphate, and nitrite levels. Introduction Unless there is a specific problem detected, the most common reason for undertaking soil analysis is to detect the levels of essential nutrients (Guo, 2009). The commonly analysed nutrients in most…

AHCSOL303 Assignment 3- soil amelioration report 1.i have a soil that does not absorb water, and when i water it the water pools on the surface and does not infiltrate. What is wrong with my soil? The soil could either be hydrophobic or heavily compacted. Hydrophobic soil is where the surface tension does not allow for infiltration of water because of a waxy layer, which cause the water to form into little beads and can form a pool on the surface. Heavily compacted soil is soil that has…

B. We were raising awareness for soil pollution throughout the world. Soil pollution is the contamination of soil with harmful substances that can adversely the health or the soil and the health of those living on it. C. Industrial activity has been the biggest contributor of soil pollution. Since the amount of mining and manufacturing have significantly increased, most industries are dependant on extracting minerals from the Earth. This is industrial activity. Whether it is iron ore or coal,…

The slogan “Free Soil, Free Speech, Free Labor, Free Men!” was associated with the Free-Soilers, a political party that began in the north leading up to the Civil War. While not specifically an abolitionist group, the party focused on legislation that would block slavery in the expanded United States territories following the Mexican-American War, and as such provided a catalyst to both the abolitionist movement and southern desire for secession. Though short-lived, the Free-Soil Party was…

practicals in the laboratory. The data were used to identify and classify soils for engineering applications. The data were tabulated using Unified Soil Classification System (USCS) method, which is non-laboratory test and 2 classification of soils based on laboratory test. The two laboratory test classify soil methods are Classification of soil based on particular size distribution and Classify soil based on Atterberg Limits. The soil samples from sites known as bore hole and called BH1, BH2,…

gases. “Soil biological processes have major long-term effects on composition of Earth’s atmosphere, which in turn influences all living things, including soil microorganisms” ( Brady, Weil 2008). Changes in atmospheric concentrations of carbon dioxide, temperature, and precipitation amounts and patterns will modify the soil plant system, and influence decomposition rates which will have impacts…

Laboratory Report 2: Soil Texture, Bulk density and Porosity Introduction Soil Texture The classification of soil texture is determined by the percentage of each of the soil separates. Soil separates are mineral particles smaller than 2mm, and these particles are sand, silt and clay. These textures are separated by the size of the particles, with sand being the largest between 2mm and 0.05mm, silt at between 0.05mm and 0.002mm, and clay at <0.002mm. The size of the particles influences the…

Soil preference of the Red Compost Worms, Eisenia fetida INTRODUCTION Earthworms provide countless benefits to humans, plants and animals, by improving drainage, advancing nutrient accessibility, and providing a steady soil system, helping to develop farm production. They benefit the soil ecosystem by decomposing and recycling organic matter, opening up pores inside the soil to develop its formation and supplying food for predators . By adding nutrients to the soil they inhabit, earthworms are…