Soils

different types of soil. There are over 1,300 different kinds of soil in Texas alone. Due to the fact that most of our land is used for farming, our soil is one of the most important resources. Texas is known for its diverse climate and landscape, so each part of the state has a particular soil to mirror what is needed. Texas has over twenty one divisions of major land reasource areas that have similar or related uses. Here are some examples of the different types of soils. Trans-Pecos soils are one of

Environmental Science Professor Delia Comeau Case Study: Grassland Soil Erosion Overgrazing of grasslands is an issue occurring in many areas around the nation. In fact, it is the leading cause of all soil degradation, being responsible for more than 30 percent (Withgott & Lapostata, 2014, p. 222). Overgrazing has many consequences: land degradation; poor soil quality; invasive species of weeds and plants; 1loss in biodiversity; increased flooding prevalence and increased magnitude; even a possible

Reviving Soil Sweat amongst my brow the sun at my back. Stained from the rich red dirt of Ho’olehua, Moloka’i the soil speaks to me. My earthmother has given thanks to me. She whispers promise of a fruitful harvest, and a beautiful lawn. Lush green grass sprouts from the ground while my Papa and I eat fresh tangerines. Slicing tomatoes that burst with ono juices for a freshly made salad. I took care of her, and she now takes care of me. Earthmother has kept her promise so I must as well, hopefully

LANDSLIDES Introduction The term ‘landslide’ includes all varieties of mass movements of hill slopes and can be defined as the downward and outward movement of slope forming materials composed of rocks, soils, artificial fills or combination of all these materials along surfaces of separation by falling, sliding and flowing, either slowly or quickly from one place to another. Although the landslides are primarily associated with mountainous terrains, these can also occur in areas where an activity

The term expansive soil indicates to soils, which ahs the tendency to swell when their moisture content is allowed to increase. The moisture may come from rain, flooding, leaking water or sewer lines, or from a reduction in surface evapotranspiration when an area is covered by a building or pavement. The term cracking soils is also used for these soils as they have the tendency to shrink and crack when the moisture is allowed to decrease. Soils containing the clay mineral montmorillonite generally

ABSTRACT Soil quality assessment has been suggested as an effective tool for evaluating sustainability of soil and crop management practices. The objective of this study was to develop a sensitive soil quality index (SQI) based on bulk density (BD), water holding capacity (WHC), water stable aggregates (WSA), mean weight diameter followed by wet sieving (MWD), soil organic carbon (SOC) and carbon inputs to evaluate the important rice-wheat cropping system on a Inceptisol in India on the basis of

Soil is the loose material on the Earth’s surface that is made up of organic and mineral matter where plants grow. “Soil is the major source of nutrients needed for plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K).”(NSW Government, 2004) Soil contains nutrients and water needed for the plant, and also contains living organisms which helps to decompose organic matter and help with producing nutrients for the plant to intake. Nitrogen is

Vertisols are a group of heavy-textured soils which are found in the tropics, subtropics and warm temperate zones. They could be known Dark Clays and many different names mostly related to their dark color; Sixty percent of the Vertisols are in the tropics, 30 % in the subtropics and 10 % in colder regions. The major areas of Vertisols are found in Australia, India, Sudan, Chad, US, China, and Ethiopia. Vertisols are an important soil in agriculture, although they cover only a small area of the land

INTRODUCTION : Construction of roads in black cotton soil areas has been problematic due to their low bearing capacity and the detrimental effects of volume instability arising from swelling and shrinkage characteristics of such soils during wet and dry seasons. Such problems assume greater acuteness where the water table is high and clayey subsoil stratum is thick. A Perfect example of a case history study can be considered from “Gudivada-Bantumilli” State Highway, which passes through a plain

Abstract Soil quality assessment has been suggested as an effective tool for evaluating sustainability of soil and crop management practices. The objective of this study was to develop a sensitive soil quality index (SQI) based on bulk density (BD), water holding capacity (WHC), water stable aggregates (WSA), mean weight diameter followed by wet sieving (MWD), soil organic carbon (SOC) and carbon inputs to evaluate the important rice-wheat cropping system on a Inceptisol in India on the basis of