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Kalkaska sand is the official soil of the U.S. state of Michigan. Kalkaska sand was identified in 1927 and named after Kalkaska County located in the northern Lower Peninsula of Michigan. This soil is a multi-layer soil composed of humus, light sand, dark sand, and yellowish sand. It is classified as a spodosol. The distinctive sand layers can ...
This is a list of U.S. state soils. A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These official state soils share the same level of distinction as official state flowers and birds.
The Michigan Department of Natural Resources (DNR) is the agency of the state of Michigan founded in 1921, charged with maintaining natural resources such as state parks, state forests, and recreation areas. It is governed by a director appointed by the Governor and accepted by the Natural Resources Commission. Since 2023, the Director is Scott ...
The C content may be estimated from crude ash content (often reported in animal feed) [19] or from reported macronutrient levels as carbs% × 0.44 + fat% × 0.86 + prot% × 0.53. [ 22 ] Given the C:N ratio and one of C and N contents, the other content may be calculated using the very definition of the ratio. [ 19 ]
Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...
The three-digit number is unique to each individual county within a state, but to be unique within the entire United States, it must be prefixed by the state code. This means that, for example, the number 001 is shared by Alcona County, Michigan, Adams County, Wisconsin, and Adair County, Iowa. To uniquely identify Alcona County, Michigan, one ...
The following is a list of Michigan state game and wildlife areas found throughout the U.S. state of Michigan. The state has a system of publicly owned lands managed primarily for wildlife conservation, wildlife observation, recreational activities, and hunting. Some areas provide opportunities for camping, hiking, cross-country skiing, fishing ...
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.