Download or read book Evaluation of Forest Management Impacts on Understory and Overstory Vegetation Cover Runoff and Sediment Yield in a Northern New Mexico Forest written by Onur Beyazoglu and published by . This book was released on 2015 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire suppression techniques over the last century have increased tree densities and altered the ecological processes of montane forests within New Mexico. Alternative forest silviculture treatments might reduce wildfire risk and improve water yield and herbaceous cover. This study's goals were to 1) determine how forest silvicultural thinning treatments affect understory and overstory vegetation cover and 2) determine how forest silvicultural treatments affect runoff and sediment yield. Thinning treatments were a control, pile, innerspace (space between piles), and lop-scatter. The effect of treatments on herbaceous and overstory cover were assessed with a fixed-plot layout at treatment sites, where 2014 post-treatment results were compared to 2008 post-treatment measurements. Runoff and sediment yield were measured utilizing one-hour rainfall simulations at the runoff ring scale (1 m2). Results showed forest thinning treatments significantly impacted herbaceous vegetation cover, litter cover, bare cover, and canopy cover. In lop-scatter treatments, vegetation cover and canopy cover were higher in 2014 than in 2008. Inner-space plots showed higher bare ground cover percent than in pile and in lop-scatter areas. Litter cover from the control plots resulted in higher cover than both lop-scatter and pile plots on the gentle slopes, while on the steep slopes the cover was only higher than the pile plots. Data suggest that all thinning treatments promote increased vegetative understory cover promote increased vegetative understory cover. There was no significant difference in runoff ratio among the treatments during the dry runs; however, control sites had lower runoff ratios than inner-space, lop-scatter, and pile treatments during the wet runs. During both dry and wet runs, time to runoff initiation was greater on the pile treatments and scatter treatments compared to the control treatments. There were no differences in time to peak runoff among silvicultural treatments during simulated rainfall. During wet runs, sediment yield did not differ by treatment; however, on steep slope sites, sediment yield was higher than on gentle slopes. This study suggests that the combination of thinning and burning silvicultural treatments promotes increased vegetative understory cover; the treatments appear to delay runoff when compared to control plots.
Download or read book Effects of Forest Management on Understory and Overstory Vegetation written by David R. Thysell and published by . This book was released on 2000 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Case Study of Runoff and Sediment Yield in Areas Subjected to Different Forest Thinning Treatments in a Northern New Mexico Forest written by Furkan Atalar and published by . This book was released on 2018 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forest thinning practices play a fundamental role in natural resource management and are used to reduce forest density, particularly in the southwestern US. Increased forest density can significantly influence fuel loads and subsequent fire severity. Moderate and high fire severity may increase surface runoff and sediment yield during post-fire rainfall events. This study was conducted to evaluate the effects of thinning treatments on runoff and sediment yield in northern New Mexico forests. Four cover types were tested to evaluate how they influenced runoff and sedimentation. The four cover types included control (non-thinned), inter space (between slash piles), lop-scatter (slash was scattered and burned), and pile (slash was piled and burned). In addition, each cover type was tested on two slopes, one was a mild slope (
Download or read book Effects of Forest Management on Understory and Overstory Vegetation written by David R. Thysell and published by . This book was released on 2000 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Environmental Impact Statement written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 1990 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationships Between Overstory and Understory Density and Composition in a Mixed Conifer Forest Following Thinning on the Eastern Slope written by Rita Daniels and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Abstract quoted from thesis]
Download or read book Record of Decision written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 2001 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Environmental Impact Statement for Managing Competing and Unwanted Vegetation Appendices A timber growth and yield analysis B economy efficiency analysis C herbicide use and efficacy E silviculture program effects F rangelands of the Pacific Northwest region G vegetation management activities J wildlife use of six broad forest types K methodology used to project particulate emissions from prescribed burning written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 1988 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Umatilla National Forest N F Heppner Planning Unit written by and published by . This book was released on 1979 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Environmental Impact Statement written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 1990 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Umatilla National Forest N F Farley Vegetation Management Project written by and published by . This book was released on 2009 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Mexico Forest woodlands 2000 written by and published by . This book was released on 1990 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Variable density Thinning on Understory Diversity and Heterogeneity in Young Douglas fir Forests written by Juliann E. Aukema and published by . This book was released on 2008 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nine years after variable-density thinning (VDT) on the Forest Ecosystem Study, we examined low understory vegetation in 60 plots of eight stands (four pairs of VDT and control). We compared native, exotic, ruderal, and nonforest species richness among the stands. We used clustering, ordination, and indicator species analysis to look for distinctive patches of plant associations. Native, exotic, ruderal, and nonforest plant species diversity were higher in VDT stands compared to control stands for both forests. Differentiation of the understory into multiple distinct vegetation patches was not definitive, but there were trends toward greater heterogeneity in VDT stands.
Download or read book Bitterroot National Forest N F Beaver Woods Vegetation Management Project written by and published by . This book was released on 1995 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Final Environmental Impact Statement Land and Resource Management Plan written by United States. Forest Service. Pacific Northwest Region and published by . This book was released on 1990 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of the Environmental Impact Statement for the Santa Fe National Forest Plan written by and published by . This book was released on 1987 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary of the Final Environmental Impact Statement and the Land and Resource Management Plan for the White River National Forest Eagle Garfield Gunnison Mesa Moffat Pitkin Rio Blanco Roult and Summit Counties Colorado written by and published by . This book was released on 1984 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
