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Full-Text Articles in Life Sciences
Long‐Term Effects Of Tree Expansion And Reduction On Soil Climate In A Semiarid Ecosystem, Bruce A. Roundy, R. F. Miller, R. J. Tausch, J. C. Chambers, B. M. Rau
Long‐Term Effects Of Tree Expansion And Reduction On Soil Climate In A Semiarid Ecosystem, Bruce A. Roundy, R. F. Miller, R. J. Tausch, J. C. Chambers, B. M. Rau
Articles
In sagebrush ecosystems, pinyon and juniper tree expansion reduces water available to perennial shrubs and herbs. We measured soil water matric potential and temperatures at 13–30 and 50–65 cm soil depths in untreated and treated plots across a range of environmental conditions. We sought to determine the effects of tree expansion, tree reduction treatments, and expansion phase at time of treatment over 12–13 yr post‐treatment. Because the effects of tree reduction on vegetation can vary with the soil temperature/moisture regime, we also analyzed differences in soil climate variables between the mesic/aridic‐xeric and frigid/xeric regime classifications for our sites. Growing conditions …
Long-Term Effectiveness Of Tree Removal To Re-Establish Sagebrush Steppe Vegetation And Associated Spatial Patterns In Surface Conditions And Soil Hydrologic Properties, C. Jason Williams, Justin C. Johnson, Frederick B. Pierson, Cameron S. Burleson, Viktor O. Polyakov, Patrick R. Kormos, S. Kossi Nouwakpo
Long-Term Effectiveness Of Tree Removal To Re-Establish Sagebrush Steppe Vegetation And Associated Spatial Patterns In Surface Conditions And Soil Hydrologic Properties, C. Jason Williams, Justin C. Johnson, Frederick B. Pierson, Cameron S. Burleson, Viktor O. Polyakov, Patrick R. Kormos, S. Kossi Nouwakpo
Articles
Pinyon (Pinus spp.) and juniper (Juniperus spp.) woodland encroachment into sagebrush (Artemisia spp.) steppe communities throughout western North America has substantially altered the vegetation structure and hydrologic function of one of the most ecologically important rangeland ecosystems in the world. Various pinyon and juniper tree removal practices are employed to re-establish sagebrush steppe vegetation and an associated resource-conserving ecohydrologic function. The effectiveness of these practices is highly variable owing to the vast domain in which woodland encroachment occurs, climate fluctuations, differences in treatment applications, and myriads of pre-treatment conditions and post-treatment land uses. This study evaluated the …