Search results
Results from the WOW.Com Content Network
Mollisol is a soil type which has deep, high organic matter, nutrient-enriched surface soil , typically between 60 and 80 cm (24-31 in) in depth. This fertile surface horizon, called a mollic epipedon, is the defining diagnostic feature of Mollisols.
The soils, mostly Vertisols and Mollisols, are deep, loamy and clayey, and tend to be finer-textured than in the Lower Rio Grande Valley (34e) to the north. Some Entisols and Inceptisols occur near the river. The floodplain ridges once had abundant palm trees, and early Spanish explorers called the river "Rio de las Palmas." Most large palm ...
This is a large area covering 407,000 square kilometres (157,000 sq mi) from northern Illinois through most of Missouri, eastern Kansas, Oklahoma and into Texas.This area was traditionally a mixture of woodland and tall grass prairie, which as the soil consists of highly fertile mollisols, most of the area has been converted to farmland.
Indiangrass thrives in deep, moist, prairie soils, woodland edges and bottomland habitats. In addition to its value as livestock and wildlife forage, Native Americans utilized Indiangrass as ...
The tallgrass prairie, with moderate rainfall and rich soils, were ideally suited to agriculture so it became a productive grain-growing region. The tallgrass prairie ecosystem covered some 170 million acres (690,000 km 2 ) of North America.
Name Photo Location [4] Date formed Area [1] Description Midewin National Tallgrass Prairie: Illinois: 1996: 20,283 acres (82.1 km 2) [5]: The only federally managed prairie east of the Mississippi River, Midewin is in the Central forest-grasslands transition ecoregion and was created when land was transferred to the U.S. Forest Service from the U.S. Army.
In Iowa, forest soils and alfisols formed on the paha, while prairie soils and mollisols formed on the surrounding landscape. [11] Most paha are still covered with trees or grazed while the surrounding landscape is in European-style agriculture.
Mixed prairie are the lighter and more sandy soils, found on the heights. The dominant plants are the needle and thread grass , western wheatgrass , Junegrass , along with short grass plants. There is a wider mix of vegetation which becomes more noticeable in spring and early summer when broom snakeweed , fringed sage , plus various forbs ...