DOCSLIB.ORG

Estimates of Site Potential for Douglas-Fir Based on Site Index for Several Southwestern Habitat Types

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Great Basin Naturalist Volume 46 Number 2 Article 16 4-30-1986 Estimates of site potential for Douglas-fir based on site index for several southwestern habitat types Robert L. Mathiasen Northern Arizona University, Flagstaff, Arizona Elizabeth A. Blake Northern Arizona University, Flagstaff, Arizona Carleton B. Edminster Northern Arizona University, School of Forestry, Flagstaff, Arizona Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Mathiasen, Robert L.; Blake, Elizabeth A.; and Edminster, Carleton B. (1986) "Estimates of site potential for Douglas-fir based on site index for several southwestern habitat types," Great Basin Naturalist: Vol. 46 : No. 2 , Article 16. Available at: https://scholarsarchive.byu.edu/gbn/vol46/iss2/16 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. ESTIMATES OF SITE POTENTIAL FOR DOUGLAS-FIR BASED ON SITE INDEX FOR SEVERAL SOUTHWESTERN HABITAT TYPES Robert L. Mathiasen', Elizabeth A. Blake', and Carleton B. Edminster^ Abstract. — Estimates of site potential for Douglas-fir based on measured site indexes in 450 stands are compared between 10 southwestern habitat types. Significant differences in site potential are found between the habitat types studied. Site index is currently the most widely used curves and normal yield tables to estimate method of evaluating site quality or potential yield capability for habitat types in Montana productivity of forest lands in the United and Idaho. States (Jones 1969, Husch et al. 1972, Southwestern forests are becoming more Daubenmire 1976). Site index is based on the intensively managed for timber production average heights of dominant and codominant than in the past. However, growth and pro- trees at a specified index age (usually 50 or 100 ductivity data are presently limited (Gottfried years). Because stands of the index age are 1978). Habitat type classifications are recog- seldom encountered, site index curves are nized for these forests, but little information is constructed to allow for estimation of site in- available on the timber productivity potential dex for stands older or younger than the index for these habitat types (Moir and Ludwig age by interpolation between the curves. Site 1979, Hanks et al' 1983, Alexander et al. index curves describe the height growth of 1984). Jones (1974) provides a summary of the hypothetical trees of specified site indexes. silviculture of southwestern mixed conifer The use of habitat types (Daubenmire 1952) forests and emphasizes a need for improving to classify forest vegetation is gaining accep- their management based on the application of tance by land managers and researchers in the habitat types or stand types. This study pro- western United States (Layser 1974, Pfister vides additional quantitative data on site po- 1976, Pfister and Arno 1980). One of the pri- tential based on site index measurements for mary uses of habitat types is in timber man- Douglas-fir for several recognized southwest- agement. Habitat types are used to compare ern forest habitat types. regeneration success, succession patterns, cutting methods, and timber productivity and Methods to develop guidelines for collecting seed and planting nursery stock (Pfister and Arno Total height and age at diameter breast 1980). height were measured for two to six vigor- The use of habitat types to predict forest ously growing dominant or codominant Dou- site productivity potential is proposed by sev- glas-firs in 450 uneven-aged southwestern eral investigators. Differences in the rate of spruce-fir (31) or mixed conifer (419) stands height growth by habitat type are demon- from 1979 to 1985. Trees with visible signs of strated for several tree species (Daubenmire abiotic, insect, or disease damage were not 1961, Deitschman and Greene 1965, Stanek selected as site trees in the stands. The follow- 1966, Stage 1975, Hoffman 1976). Significant ing information was recorded for each stand: differences between site indexes are also national forest, location (township, range, and shown for habitat types (Stanek 1966, Stage section), elevation (nearest 100 feet), aspect 1975, Hoffman 1976). Pfister et al. (1971, (four cardinal directions), slope (nearest 5%), 1977) and Steele et al. (1981) use site index slope position (flat, bottom, ridge, slope) and Northern Arizona University, School of Forestry, Flagstaff, Arizona 86011. ^USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, Colorado i 111 ' 278 Great Basin Naturalist Vol. 46, No. 2 Table 1. Southwestern spruce-fir and mixed conifer habitat types sampled. Spruce-fir Habitat Types ABLA/LIBO: Abies lastocarpalLinnaea borealis~ (Abies lasiocarpalVacciniwn scoparium-Linnaca borealis^) ABLA/ EREX; Abies lasiocarpa/Erigeron eximius^'^ (Abies lasiocarpa/Erigeron superbus*) Mixed Conifer Habitat Types PIEN/SECA: Picea engebnanniilSenecio cardaminc^ (Picea pungens-Picea engelmanniilSenecio cardamine ) PIEN/EREX; Picea cngcbnanniilErigcron cximius^ (Picea pungens-Picea cngebnannii/Erigeron superbiis^) PIPU/EREX: Picea pungens/Erigeron exiniius' (Picea pungens-Pseiidotsiiga menziesii ) ABCO/ACGL; Abies concolorlAcer glabrum^'^ (Abies concolor-Pseudofsttga menziesiilAcer glabrum ^) ABCO/FEAR: Abies concolorlFestuca arizonica^^ (Abies concolor-Pseudotsuga menziesii /Poafendleriana^) ^ ABCO/QUGA: Abies concolorlQuercus gambelii ' ~ (Abies concolor-Pseudotsuga menziesii/Qucrcus gambeUi*) ABCO/BERE; Abies concoIor/Berberis repcns (Abies concolor-Pseudotsuga »u'»iz;r.su7[sparse]^) ABCO/EREX; Abies concolorlErigeron eximius'^ (Abies concolor-Pseudotsuga menziesiilErigeron superbus^) . classsification forest ts-pes 'Ale.xander, B G . Jr , F Ronco. Jr E L Fitzhugh. and J A Ludwic 1984. A of habitat of the Lincoln National Forest, New Mexico. USDA Forest Service, Gen. Tech. Rep. RM-104, 29 pp. In preparation. classification of forest habitat types of southern "DeVelice. R L , J A LUDWIG. W H Moir, and F Ronco. Jr A northern New Mexico and Colorado. USDA Forest Service, Gen. Tech. Rep. RM. ^Fitzhugh, E L , W H Moir, J A Ludwig. and F Ronco Forest habitat types in the Apache, Gila, and part of the Cibola national forests, Arizona and New Mexico. In preparation. nii.xed conifer habitat Service, Res. *MoiR, W H . AND J A Li'Dwic 1979. A classification of spruce-fir and types of Arizona and New Mexico. USDA Forest Pap. RM-207. 47 pp. ^he Abies concolor-Pseudotsuga menziesii/Poa fendleriana habitat type originally described by Moir and Ludwig (1979) is now considered to represent a phase of the Abies concolorlFestuca arizonica habitat type described by Moir and Ludwig (1979). Personal communication with W. B. Moir, 1985. nfOUNCBLOOD. A P In press. Coniferous forest habitat types of central and southern Utah. USD.^ Forest Service, Gen. Tech. Rep. INT. Table 2. Mean Douglas-fir site inde.xes and standard deviations by habitat type. April 1986 Mathiasen etal.: Douglas-fir Ecology 279 (89.5), and ABCO/FEAR (87.6) habitat types pret these data as representing moderate to are classified as high site potential habitat high site (juality for the Southwest. Our site types for Douglas-fir. The ABLA/LIBO index data for this habitat type basically corre- (niean-67.7) is classified as the low potential spond to that of Moir and Ludwig's, except habitat type. The moderate site potential class the range of site indexes is wider in our study. includes the remaining six habitat types stud- Moir and Ludwig (1979) do not present ied with mean site indexes ranging from 82.6 Douglas-fir site quality estimates for three of (PIPU-EREX) to 73.6 (ABLA/EREX). Mean the habitat types sampled in this study. Based site indexes for the ABLA/EREX and ABLA/ on our site index data, site quality for Dou- LI BO habitat types were not significantly dif- glas-fir is moderate for the ABCO/EREX and ferent, but they were classified into different ABLA/EREX habitat types and high for the site potential classes because the mean for the ABCO/FEAR habitat type. ABLA/LIBO habitat type was below 70 feet. Several investigators discuss the difficulties of using site index for estimating site potential in uneven-aged stands (Stage 1963, Jones Discussion 1969, Curtis 1976, Daubenmire 1976). Steele et al. (1981, 1983) use site indexes and normal Site index is currently the most widely used yield tables to estimate productivity potential method of evaluating site quality in the for habitat types in Montana and Idaho. How- United States (Jones 1969, Husch et al. 1972). ever, normal yield tables for Douglas-fir in the Several investigators note significant differ- Southwest are not available, and we do not ences in site index between habitat types for feel the use of yield tables from other regions several tree species (Stanek 1966, Roe 1967, would be valid for the Southwest. The devel- Hoffman 1976). However, Daubenmire opment of separate site curves for different (1961) rejects the use of ponderosa pine site habitat types should improve the accuracy of index curves for predicting potential produc- site index as an estimate of site quality. How- tivity of habitat types in eastern Washington. ever, this approach may not solve the prob- Our results indicate that the southwestern lems related to using site index in uneven- spruce-fir
Recommended publications
  • Pima County Plant List (2020) Common Name Exotic? Source

    Pima County Plant List (2020) Common Name Exotic? Source

    Pima County Plant List (2020) Common Name Exotic? Source McLaughlin, S. (1992); Van Abies concolor var. concolor White fir Devender, T. R. (2005) McLaughlin, S. (1992); Van Abies lasiocarpa var. arizonica Corkbark fir Devender, T. R. (2005) Abronia villosa Hariy sand verbena McLaughlin, S. (1992) McLaughlin, S. (1992); Van Abutilon abutiloides Shrubby Indian mallow Devender, T. R. (2005) Abutilon berlandieri Berlandier Indian mallow McLaughlin, S. (1992) Abutilon incanum Indian mallow McLaughlin, S. (1992) McLaughlin, S. (1992); Van Abutilon malacum Yellow Indian mallow Devender, T. R. (2005) Abutilon mollicomum Sonoran Indian mallow McLaughlin, S. (1992) Abutilon palmeri Palmer Indian mallow McLaughlin, S. (1992) Abutilon parishii Pima Indian mallow McLaughlin, S. (1992) McLaughlin, S. (1992); UA Abutilon parvulum Dwarf Indian mallow Herbarium; ASU Vascular Plant Herbarium Abutilon pringlei McLaughlin, S. (1992) McLaughlin, S. (1992); UA Abutilon reventum Yellow flower Indian mallow Herbarium; ASU Vascular Plant Herbarium McLaughlin, S. (1992); Van Acacia angustissima Whiteball acacia Devender, T. R. (2005); DBGH McLaughlin, S. (1992); Van Acacia constricta Whitethorn acacia Devender, T. R. (2005) McLaughlin, S. (1992); Van Acacia greggii Catclaw acacia Devender, T. R. (2005) Acacia millefolia Santa Rita acacia McLaughlin, S. (1992) McLaughlin, S. (1992); Van Acacia neovernicosa Chihuahuan whitethorn acacia Devender, T. R. (2005) McLaughlin, S. (1992); UA Acalypha lindheimeri Shrubby copperleaf Herbarium Acalypha neomexicana New Mexico copperleaf McLaughlin, S. (1992); DBGH Acalypha ostryaefolia McLaughlin, S. (1992) Acalypha pringlei McLaughlin, S. (1992) Acamptopappus McLaughlin, S. (1992); UA Rayless goldenhead sphaerocephalus Herbarium Acer glabrum Douglas maple McLaughlin, S. (1992); DBGH Acer grandidentatum Sugar maple McLaughlin, S. (1992); DBGH Acer negundo Ashleaf maple McLaughlin, S.
  • A Vegetation Map of the Valles Caldera National Preserve, New

    A Vegetation Map of the Valles Caldera National Preserve, New

    ______________________________________________________________________________ A Vegetation Map of the Valles Caldera National Preserve, New Mexico ______________________________________________________________________________ A Vegetation Map of Valles Caldera National Preserve, New Mexico 1 Esteban Muldavin, Paul Neville, Charlie Jackson, and Teri Neville2 2006 ______________________________________________________________________________ SUMMARY To support the management and sustainability of the ecosystems of the Valles Caldera National Preserve (VCNP), a map of current vegetation was developed. The map was based on aerial photography from 2000 and Landsat satellite imagery from 1999 and 2001, and was designed to serve natural resources management planning activities at an operational scale of 1:24,000. There are 20 map units distributed among forest, shrubland, grassland, and wetland ecosystems. Each map unit is defined in terms of a vegetation classification that was developed for the preserve based on 348 ground plots. An annotated legend is provided with details of vegetation composition, environment, and distribution of each unit in the preserve. Map sheets at 1:32,000 scale were produced, and a stand-alone geographic information system was constructed to house the digital version of the map. In addition, all supporting field data was compiled into a relational database for use by preserve managers. Cerro La Jarra in Valle Grande of the Valles Caldera National Preserve (Photo: E. Muldavin) 1 Final report submitted in April 4, 2006 in partial fulfillment of National Prak Service Award No. 1443-CA-1248- 01-001 and Valles Caldrea Trust Contract No. VCT-TO 0401. 2 Esteban Muldavin (Senior Ecologist), Charlie Jackson (Mapping Specialist), and Teri Neville (GIS Specialist) are with Natural Heritage New Mexico of the Museum of Southwestern Biology at the University of New Mexico (UNM); Paul Neville is with the Earth Data Analysis Center (EDAC) at UNM.
  • Rare Plant Survey of San Juan Public Lands, Colorado

    Rare Plant Survey of San Juan Public Lands, Colorado

    Rare Plant Survey of San Juan Public Lands, Colorado 2005 Prepared by Colorado Natural Heritage Program 254 General Services Building Colorado State University Fort Collins CO 80523 Rare Plant Survey of San Juan Public Lands, Colorado 2005 Prepared by Peggy Lyon and Julia Hanson Colorado Natural Heritage Program 254 General Services Building Colorado State University Fort Collins CO 80523 December 2005 Cover: Imperiled (G1 and G2) plants of the San Juan Public Lands, top left to bottom right: Lesquerella pruinosa, Draba graminea, Cryptantha gypsophila, Machaeranthera coloradoensis, Astragalus naturitensis, Physaria pulvinata, Ipomopsis polyantha, Townsendia glabella, Townsendia rothrockii. Executive Summary This survey was a continuation of several years of rare plant survey on San Juan Public Lands. Funding for the project was provided by San Juan National Forest and the San Juan Resource Area of the Bureau of Land Management. Previous rare plant surveys on San Juan Public Lands by CNHP were conducted in conjunction with county wide surveys of La Plata, Archuleta, San Juan and San Miguel counties, with partial funding from Great Outdoors Colorado (GOCO); and in 2004, public lands only in Dolores and Montezuma counties, funded entirely by the San Juan Public Lands. Funding for 2005 was again provided by San Juan Public Lands. The primary emphases for field work in 2005 were: 1. revisit and update information on rare plant occurrences of agency sensitive species in the Colorado Natural Heritage Program (CNHP) database that were last observed prior to 2000, in order to have the most current information available for informing the revision of the Resource Management Plan for the San Juan Public Lands (BLM and San Juan National Forest); 2.
  • Annotated Checklist of Vascular Flora, Bryce

    Annotated Checklist of Vascular Flora, Bryce

    National Park Service U.S. Department of the Interior Natural Resource Program Center Annotated Checklist of Vascular Flora Bryce Canyon National Park Natural Resource Technical Report NPS/NCPN/NRTR–2009/153 ON THE COVER Matted prickly-phlox (Leptodactylon caespitosum), Bryce Canyon National Park, Utah. Photograph by Walter Fertig. Annotated Checklist of Vascular Flora Bryce Canyon National Park Natural Resource Technical Report NPS/NCPN/NRTR–2009/153 Author Walter Fertig Moenave Botanical Consulting 1117 W. Grand Canyon Dr. Kanab, UT 84741 Sarah Topp Northern Colorado Plateau Network P.O. Box 848 Moab, UT 84532 Editing and Design Alice Wondrak Biel Northern Colorado Plateau Network P.O. Box 848 Moab, UT 84532 January 2009 U.S. Department of the Interior National Park Service Natural Resource Program Center Fort Collins, Colorado The Natural Resource Publication series addresses natural resource topics that are of interest and applicability to a broad readership in the National Park Service and to others in the management of natural resources, including the scientifi c community, the public, and the NPS conservation and environmental constituencies. Manuscripts are peer-reviewed to ensure that the information is scientifi cally credible, technically accurate, appropriately written for the intended audience, and is designed and published in a professional manner. The Natural Resource Technical Report series is used to disseminate the peer-reviewed results of scientifi c studies in the physical, biological, and social sciences for both the advancement of science and the achievement of the National Park Service’s mission. The reports provide contributors with a forum for displaying comprehensive data that are often deleted from journals because of page limitations.
  • List of Plants for Great Sand Dunes National Park and Preserve

    List of Plants for Great Sand Dunes National Park and Preserve

    Great Sand Dunes National Park and Preserve Plant Checklist DRAFT as of 29 November 2005 FERNS AND FERN ALLIES Equisetaceae (Horsetail Family) Vascular Plant Equisetales Equisetaceae Equisetum arvense Present in Park Rare Native Field horsetail Vascular Plant Equisetales Equisetaceae Equisetum laevigatum Present in Park Unknown Native Scouring-rush Polypodiaceae (Fern Family) Vascular Plant Polypodiales Dryopteridaceae Cystopteris fragilis Present in Park Uncommon Native Brittle bladderfern Vascular Plant Polypodiales Dryopteridaceae Woodsia oregana Present in Park Uncommon Native Oregon woodsia Pteridaceae (Maidenhair Fern Family) Vascular Plant Polypodiales Pteridaceae Argyrochosma fendleri Present in Park Unknown Native Zigzag fern Vascular Plant Polypodiales Pteridaceae Cheilanthes feei Present in Park Uncommon Native Slender lip fern Vascular Plant Polypodiales Pteridaceae Cryptogramma acrostichoides Present in Park Unknown Native American rockbrake Selaginellaceae (Spikemoss Family) Vascular Plant Selaginellales Selaginellaceae Selaginella densa Present in Park Rare Native Lesser spikemoss Vascular Plant Selaginellales Selaginellaceae Selaginella weatherbiana Present in Park Unknown Native Weatherby's clubmoss CONIFERS Cupressaceae (Cypress family) Vascular Plant Pinales Cupressaceae Juniperus scopulorum Present in Park Unknown Native Rocky Mountain juniper Pinaceae (Pine Family) Vascular Plant Pinales Pinaceae Abies concolor var. concolor Present in Park Rare Native White fir Vascular Plant Pinales Pinaceae Abies lasiocarpa Present
  • Ecology, Silviculture, and Management of the Engelmann Spruce - Subalpine Fir Type in the Central and Southern Rocky Mountains

    Ecology, Silviculture, and Management of the Engelmann Spruce - Subalpine Fir Type in the Central and Southern Rocky Mountains

    Utah State University DigitalCommons@USU Quinney Natural Resources Research Library, The Bark Beetles, Fuels, and Fire Bibliography S.J. and Jessie E. 1987 Ecology, Silviculture, and Management of the Engelmann Spruce - Subalpine Fir Type in the Central and Southern Rocky Mountains Robert R. Alexander Follow this and additional works at: https://digitalcommons.usu.edu/barkbeetles Part of the Ecology and Evolutionary Biology Commons, Entomology Commons, Forest Biology Commons, Forest Management Commons, and the Wood Science and Pulp, Paper Technology Commons Recommended Citation Alexander, R. (1987). Ecology, silviculture, and management of the Engelmann spruce - subalpine fir type in the central and southern Rocky Mountains. USDA Forest Service, Agriculture Handbook No. 659, 144 pp. This Full Issue is brought to you for free and open access by the Quinney Natural Resources Research Library, S.J. and Jessie E. at DigitalCommons@USU. It has been accepted for inclusion in The Bark Beetles, Fuels, and Fire Bibliography by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. United States Department of Agriculture Ecology, Silviculture, and Forest Management of the Engelmann Service Agriculture Spruce-Subalpine Fir Type in the Handbook No. 659 Central and Southern Rocky Mountains Robert R. Alexander Chief silviculturist Rocky Mountain Forest and Range Experiment Station Ft. Collins, CO March 1987 Alexander, Robert R. Ecology, silviculture, and management of the Engelmann spruce-subalpine fir type in the central and southern Rocky Mountains. Agric. Handb. No. 659. Washington, DC: U.S. Department of Agriculture Forest Service; 1987. 144 p. Summarizes and consolidates ecological and silvicultural knowledge of spruce-fir forests.
  • Flora-Lab-Manual.Pdf

    Flora-Lab-Manual.Pdf

    LabLab MManualanual ttoo tthehe Jane Mygatt Juliana Medeiros Flora of New Mexico Lab Manual to the Flora of New Mexico Jane Mygatt Juliana Medeiros University of New Mexico Herbarium Museum of Southwestern Biology MSC03 2020 1 University of New Mexico Albuquerque, NM, USA 87131-0001 October 2009 Contents page Introduction VI Acknowledgments VI Seed Plant Phylogeny 1 Timeline for the Evolution of Seed Plants 2 Non-fl owering Seed Plants 3 Order Gnetales Ephedraceae 4 Order (ungrouped) The Conifers Cupressaceae 5 Pinaceae 8 Field Trips 13 Sandia Crest 14 Las Huertas Canyon 20 Sevilleta 24 West Mesa 30 Rio Grande Bosque 34 Flowering Seed Plants- The Monocots 40 Order Alistmatales Lemnaceae 41 Order Asparagales Iridaceae 42 Orchidaceae 43 Order Commelinales Commelinaceae 45 Order Liliales Liliaceae 46 Order Poales Cyperaceae 47 Juncaceae 49 Poaceae 50 Typhaceae 53 Flowering Seed Plants- The Eudicots 54 Order (ungrouped) Nymphaeaceae 55 Order Proteales Platanaceae 56 Order Ranunculales Berberidaceae 57 Papaveraceae 58 Ranunculaceae 59 III page Core Eudicots 61 Saxifragales Crassulaceae 62 Saxifragaceae 63 Rosids Order Zygophyllales Zygophyllaceae 64 Rosid I Order Cucurbitales Cucurbitaceae 65 Order Fabales Fabaceae 66 Order Fagales Betulaceae 69 Fagaceae 70 Juglandaceae 71 Order Malpighiales Euphorbiaceae 72 Linaceae 73 Salicaceae 74 Violaceae 75 Order Rosales Elaeagnaceae 76 Rosaceae 77 Ulmaceae 81 Rosid II Order Brassicales Brassicaceae 82 Capparaceae 84 Order Geraniales Geraniaceae 85 Order Malvales Malvaceae 86 Order Myrtales Onagraceae
  • White River National Forest Rare Plant Survey 2006

    White River National Forest Rare Plant Survey 2006

    White River National Forest Rare Plant Survey 2006 Prepared for White River National Forest By Peggy Lyon, Janis Huggins and Georgia Doyle Colorado Natural Heritage Program 254 General Services Building Colorado State University Fort Collins CO 80523 Acknowledgments This project would not have been possible without the help of many people in the White River National Forest: Kevin Atchley for first requesting this survey and working to get a contract in place; Beth Brenneman and Keith Giezentanner who took over for Kevin when he left the area; Joe Doerr and Philip Nyland, for sharing their experience and caring about the rare plants on the forest. Also, we depend on the support of the staff of CNHP in Fort Collins, especially Dave Anderson, Jill Handwerk, Susan Spackman, and Amy Lavender. Thanks also to Tim Hogan at the CU Herbarium for assisting with identification of problem plants; Dee Malone for her expertise and transportation to Taylor Pass; and John Chapman, FS Volunteer, for his time and transportation to Warren Lakes. Colorado Natural Areas Program, under the energetic direction of Brian Kurzel, and members of the Colorado Native Plant Society assisted with a survey of the Hoosier Ridge State Natural Area. Finally, thanks to our spouses, George and Rick, for putting up with our absences over the summer, and our faithful companions Molly and Misia, who protected us from Ptarmigan and other scary things. 2 Executive Summary The White River National Forest contracted with Colorado State University in 2005 to have the Colorado Natural Heritage Program (CNHP) conduct a survey of sensitive plants on the forest.
  • Overstory Tree Mortality in Ponderosa Pine and Spruce-Fir Ecosystems Following a Drought in Northern New Mexico

    Overstory Tree Mortality in Ponderosa Pine and Spruce-Fir Ecosystems Following a Drought in Northern New Mexico

    Article Overstory Tree Mortality in Ponderosa Pine and Spruce-Fir Ecosystems Following a Drought in Northern New Mexico Brian P. Oswald 1,*, Sean C. Dugan 2, Randy G. Balice 3 and Daniel R. Unger 1 1 Arthur Temple College of Forestry and Agriculture, Stephen F. Austin State University, P.O. Box 6109 SFA Station, Nacogdoches, TX 75962, USA; [email protected] 2 Big Bend Ranch State Park-Texas Parks and Wildlife, 1900 Sauceda Ranch Rd., Presidio, TX 79845, USA; [email protected] 3 Los Alamos National Laboratory, Los Alamos, NM 87545, USA; [email protected] * Correspondence: [email protected]; Tel.: +1-936-645-7990 Academic Editors: Lisa J. Samuelson and Timothy A. Martin Received: 26 July 2016; Accepted: 26 September 2016; Published: 2 October 2016 Abstract: Drought-caused tree dieback is an issue around the world as climates change and many areas become dryer and hotter. A drought from 1998–2004 resulted in a significant tree dieback event in many of the wooded areas in portions of the Jemez Mountains and the adjacent Pajarito Plateau in northern New Mexico. The objectives of this study were to evaluate and quantify the differences in tree mortality before and after a recent drought in ponderosa pine and spruce-fir ecosystems, and to assess the effect of mechanical thinning on ponderosa pine mortality. Significant increases in mortality were observed in the unthinned ponderosa pine ecosystem. Mortality varied significantly between species and within size classes. Mechanical thinning of ponderosa pines reduced overstory mortality to non-significant levels. A lack of rainfall, snowfall, and increases in daily minimum temperature contributed most to the mortality.
  • Ninety Years After Greene

    Ninety Years After Greene

    1 '' ** A ■ Wmber 34 7k A Newsletter for the flora Ninety Years After Greene of New Mexico, from the Range Science Herbarium and Eugene Jercinovic Cooperative Extension Service, College of P.O. Box 246, Torreon, NM 87061 Agriculture and Home Economics, New Mexico The name of Edward Lee Greene (1843 - 1915) must certainly be familiar to anyone involved with State University. the botany of New Mexico. The name resounds throughout American botany, sometimes with the ring of a dynamic pioneer of plant science, sometimes with the strident dissonance of a man out of step with his peers. Few figures in the history of the science are more colorful and controversial. Greene spent consid¬ erable time in New Mexico where some of his best work was accomplished. His first extended stay in Silver City so impressed him that he published a fascinating account in The American Naturalist in March 1878. His description of what is now known as Astragalus allochrous immortalizes a quintessen¬ tial image of southwestern New Mexico. “The other is also an Astragalus (A. trifloris Gray), producing almost white and very thin In This Issue — membranous pods of oblong shape. These when mature fall from the stem without opening to discharge their seeds, and are tossed about over the plains by every wind; sometimes lying in • E.L. Greene.1 heaps under the lee of bushes and tufts of grass or other herbage. These harmless toys of the S • Plant Reports.7 winds had, before I was accustomed to their ways, to my nerves, a singular little faculty of suggesting evil, the effect of which might slightly have amused a witness, had there been one.
  • Checklist of Vascular Plants of the Southern Rocky Mountain Region

    Checklist of Vascular Plants of the Southern Rocky Mountain Region

    Checklist of Vascular Plants of the Southern Rocky Mountain Region (VERSION 3) NEIL SNOW Herbarium Pacificum Bernice P. Bishop Museum 1525 Bernice Street Honolulu, HI 96817 [email protected] Suggested citation: Snow, N. 2009. Checklist of Vascular Plants of the Southern Rocky Mountain Region (Version 3). 316 pp. Retrievable from the Colorado Native Plant Society (http://www.conps.org/plant_lists.html). The author retains the rights irrespective of its electronic posting. Please circulate freely. 1 Snow, N. January 2009. Checklist of Vascular Plants of the Southern Rocky Mountain Region. (Version 3). Dedication To all who work on behalf of the conservation of species and ecosystems. Abbreviated Table of Contents Fern Allies and Ferns.........................................................................................................12 Gymnopserms ....................................................................................................................19 Angiosperms ......................................................................................................................21 Amaranthaceae ............................................................................................................23 Apiaceae ......................................................................................................................31 Asteraceae....................................................................................................................38 Boraginaceae ...............................................................................................................98
  • Vegetation Classification Report Great Basin National Park

    Vegetation Classification Report Great Basin National Park

    National Park Service U.S. Department of the Interior Mojave Desert Inventory and Monitoring Network Vegetation Classification Report Great Basin National Park ON THE COVER Mount Wheeler (from saddle between Bald Mountain) Photograph by: Keith Schulz Vegetation Classification Report: Great Basin National Park Keith A. Schulz NatureServe 4001 Discovery, Suite 2110 Boulder, CO 80303 Mark Hall NatureServe 4001 Discovery, Suite 2110 Boulder, CO 80303 March 2011 NatureServe Western Regional Office Boulder, Colorado Fort Collins, Colorado i Please cite this publication as: Schulz, K. A. and M. E. Hall. 2011. Vegetation Classification Report: Great Basin National Park. Unpublished Report submitted to USDI, National Park Service, Mojave Desert Inventory and Monitoring Network. NatureServe, Western Regional Office, Boulder, Colorado. 30 pp. plus Appendices A-H. ii Contents Page Figures............................................................................................................................................ iv Tables.............................................................................................................................................. v Appendices..................................................................................................................................... vi Acknowledgments......................................................................................................................... vii Introduction....................................................................................................................................