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Lands within the watersheds of the Great Plains streams that are not used for crops are often used for cattle grazing and hay production. Northern Plains States are one of the nation’s top producers of cattle, which outnumber people almost three to one in North Dakota. Cattle can have direct habitat impacts by trampling stream banks, which destroys beneficial vegetation and increases sedimentation and nutrient loads. Hofmann and Ries (1991) found that livestock increased sediment runoff in North Dakota streams. Schepers and Francis (1982) reported that runoff from a Nebraska cattle farm increased total phosphorus levels in runoff by 37%. In addition, cattle watering ponds, often constructed by diverting streams,...
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Data can be accessed through a map service (select one of the options in the grey bar above the inset map) or viewed in the BLM's GeoCommunicator interactive map.
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Cattle and sheep ranching are common in Southern Plains States. Areas of very high risk of habitat degradation in eastern portions of this region correspond to areas characterized as pasture. Rain and snow melt carry nutrient-rich animal waste to streams and rivers and when livestock drink from local streams they trample the stream banks and cause excessive sedimentation in the streams. Sedimentation, caused by many forms of human activity, has affected many rivers and reservoirs of the Southern Plains and work is underway in some areas to rehabilitate reservoirs affected by sedimentation. For example, a large scale project to remove seven million cubic yards of sediment from Lake Wichita, Texas is underway. Rehabilitating...
    map background search result map search result map National Grazing Allotments (BLM managed) Description of Pasture as a Human Activity Affecting Fish Habitat in Northern Plains States Description of Pasture as a Human Activity Affecting Fish Habitat in Southern Plains States Description of Pasture as a Human Activity Affecting Fish Habitat in Northern Plains States Description of Pasture as a Human Activity Affecting Fish Habitat in Southern Plains States National Grazing Allotments (BLM managed)