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Native plant persistence in cemetery prairies is highly variable, as one 1970s-era survey of Illinois and Indiana prairie cemeteries detailed: [19] "In each cemetery, certain prairie indicator species were sought, especially the warm-season grasses, such as big bluestem (Andropogon gerardii Vitman) and Indian grass (Sorghastrum nutans (L.) Nash).
Prairie grasses also have a high rate of biomass production, that can capture and store carbon at a fast rate. [29] Research has shown that prairie plants are also adapted to nutrient-poor soils, promote nutrient cycling, and contribute to soil organic matter which are essential for maintaining soil fertility and structure. [30]
The tallgrass prairie ecosystem covered some 170 million acres (690,000 km 2) of North America. Besides agriculture, much of the shortgrass prairie became grazing land for domestic livestock . Short grasslands occur in semi-arid climates while tall grasslands are in areas of higher rainfall.
Its grounds, covering 1,700 acres (6.9 square kilometres), include cataloged collections of trees and other living plants, gardens, and restored areas, [3] [4] [5] among which is a restored tallgrass prairie. The living collections include more than 4,100 different plant species. There are more than 200,000 cataloged plants. [6]
Illinois' ecology is in a land area of 56,400 square miles (146,000 km 2); the state is 385 miles (620 km) long and 218 miles (351 km) wide and is located between latitude: 36.9540° to 42.4951° N, and longitude: 87.3840° to 91.4244° W, [1] with primarily a humid continental climate.
The preserve supports a wide variety of plant and animal species. The bison provide management of the grasses on the prairie. [7] They prefer grasses and sedges, leaving the flowering plants, which support a range of insects and animals. [8] In addition, the bison, reduce the height of the plants, supporting ground dwelling birds.
Flowering big bluestem, a characteristic tallgrass prairie plant. The tallgrass prairie is an ecosystem native to central North America.Historically, natural and anthropogenic fire, as well as grazing by large mammals (primarily bison) provided periodic disturbances to these ecosystems, limiting the encroachment of trees, recycling soil nutrients, and facilitating seed dispersal and germination.
Sphenopholis obtusata is a species of grass known by the common names prairie wedgescale [1] and prairie wedge grass. It is native to North America where it is widespread across southern Canada and the United States. It occurs in many types of habitat, including prairie, marshes, dunes, and disturbed areas.