Skip to Main Content
Effects of livestock grazing on nutrient retention in a headwater stream of the Rio Puerco BasinAuthor(s): Mark A. Sewards; H. Maurice Valett
Source: In: Shaw, Douglas W.; Finch, Deborah M., tech coords. Desired future conditions for Southwestern riparian ecosystems: Bringing interests and concerns together. 1995 Sept. 18-22, 1995; Albuquerque, NM. General Technical Report RM-GTR-272. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. p. 135-142.
Publication Series: General Technical Report (GTR)
Station: Rocky Mountain Forest and Range Experiment Station
PDF: View PDF (177.74 KB)
DescriptionSediment and nutrient loss from headwater streams of sedimentary basins in the semi-arid Southwest have been attributed to both over-grazing by livestock and to climatic cycles that influence arroyo formation. Considerable effort has been directed toward the influence of livestock grazing on riparian species abundance and diversity. Less work has concentrated on the influence of livestock on in-stream processes and communities. In contrast, considerable research has described the importance of floods as ecological organizers of riparian and benthic communities in lotic ecosystems. Here, we consider the interaction of flooding and livestock grazing on hydrologic and nutrient retention in a headwater stream of the Rio Puerto Basin. NM. We propose that grazing decreases retention of water, sediments, and nutrients by changing physical and biological features of the stream that cause the system to be less resistant to natural floods and by decreasing recovery rates when floods do occur (i.e. less resilience). This work presents our initial studies of the differing nutrient and hydrologic environments created by cattle exclosures on the Rio Seiiorito, a tributary of the Rio Puerto. Preliminary results indicate that benthic biomass and transient hydraulic storage are greater in reaches protected from cattle influences. Finally, we propose a conceptual model that predicts the implication of disturbance interaction for streams impacted by flash floods and grazing practices.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationSewards, Mark A.; Valett, H. Maurice. 1996. Effects of livestock grazing on nutrient retention in a headwater stream of the Rio Puerco Basin. In: Shaw, Douglas W.; Finch, Deborah M., tech coords. Desired future conditions for Southwestern riparian ecosystems: Bringing interests and concerns together. 1995 Sept. 18-22, 1995; Albuquerque, NM. General Technical Report RM-GTR-272. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. p. 135-142.
Keywordsriparian ecosystems, human dimensions, hydrology, ecology, history, restoration
- Grazing effects on grassland ecosystems
- Demography of Lewis's Woodpecker, breeding bird densities, and riparian aspen integrity in a grazed landscape
- Prairie dogs as ecosystem regulators on the northern High Plains
XML: View XML