Soil science

Soil Health Assessment on the Sanborn Field Long-Term Experiment Study: a review Saranya Norkaew Department of Soil, Environmental, and Atmospheric Sciences School of Natural Resources, University of Missouri-Columbia MO Introduction Degradation of soil resources is still the most serious and widespread threat to humankind. Soil has an important role to play in the global environment of food security, water security, climate stability, biodiversity, and ecosystem services (McBratney et al., 2014). Worldwide research has increased awareness that soil resources have influenced by human management and practices. Soil quality assessment provides a better understanding and awareness how soil resources are needed as an essential ecosystem services…

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 erosion is one of the most serious threats in our world. Humans cause 40% of soil erosion. Soil erosion is topsoil, which is organic soil made up with rich nutrients. Erosion can be caused by careless farming techniques that lead to water erosion. When it is raining and you are walking to class you can see soil erosion where they have been working beside the English building. Soil erosion and water erosion is practically the same thing. No one will ever notice soil erosion because nobody…

Plant Science - Seed germination and growth The research question: What is the effect of changing the pH of the soil on the germination and growth of mustard peas? Hypothesis: The greatest number of peas will germinate and will grow the most when the pH is 5 or 7. Theory: Enzymes play a vital role in the cells of plants (especially when growing) and enzymes work best when at their optimum pH value. Moreover, all chemical reactions have an optimum pH at which they work best (Howard and…

Boreal, Coniferous, and Deciduous Forests Boreal, deciduous, and coniferous forests each possess distinctive traits and soil characteristics. Forests soils give important contributions in nitrogen and phosphorus transformations. These transformations are dependable on the weather conditions of the forest and the type of vegetation it contains. Soil mineralogy and organic matter also play an important role in the nitrogen and phosphorus transformations on the forest floor. Boreal forests are…

population. The quality of soil is of paramount importance when it comes to planting crops. A major factor attributed to soil quality is the presence of earthworms. Earthworms are very important in the world of agriculture and can help maximize crop yields. In this study, the effects of earthworms on varying soil pHs and soil density were viewed. Earthworms (Lumbricus terrestris) are very beneficial for the soil. They change the structure and composition of the soil, they alter water movement,…

Kishan Patel Section: 008 Pattern: Calcium levels in the soil controls soil pH and species richness within a community Hypothesis 1: Calcium levels in the soil controls soil pH. Prediction: An increase in the calcium levels in the soil will make the soil less acidic. Reasoning: Calcium exists mainly in the soil as exchangeable cations (ca^2+) associated with basic anions, which reacts with soil acidity (H) to neutralize it. Analytical approach: Regression Independent variable: Calcium levels…

Science Internal Level 3 Chemistry Chemical Process report How nitrogen exists and how it gets into waterways Nitrogen only exists in the diatomic (consisting of two atoms) form with the triple bonds between the two atoms. Nitrogen exits into the soil system and it will form and change/transform easily from one form to another form. In the diagram (left picture) the route that N will follow in and out of the soil system is called the nitrogen cycle. The nitrogen cycle is biologically…

Science Fair Purpose The purpose of this experiment is to find out which type of soil amplifies side-to-side shaking the most in an earthquake. Hypothesis My hypothesis is that sand will amplify the shaking the most because, liquefaction loosens up the soil which can make buildings slide. Materials To build your shake table, you will need: Packing tape Coffee can lid, or any flat plastic lid with approximately 3/8" lip that can fit under the shake table tray Marbles, or any small balls of the…

these questions by (insert methods here). An assessment of plant diversity in this sagebrush steppe may give insight into plant dynamics of one of Montana’s most common ecosystems. Proposal 2: Soil Fuel Assessment of Montana Sagebrush Steppe; Post Wildfire — As climate change progresses, links to changes in precipitation regimes of major ecosystems have been made. This in turn has led to the higher predisposition of wildfires in affected ecosystems.…