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Long-term Sustainability of Oaks in the US: Role of Management and Markets
Long-term Sustainability of Oaks in the US: Role of Management and Markets
Long-term Sustainability of Oaks in the US: Role of Management and Markets

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105630
ISBN  
9798297622227
DDC  
634.9
저자명  
Dhungel, Gaurav.
서명/저자  
Long-term Sustainability of Oaks in the US: Role of Management and Markets
발행사항  
[Sl] : North Carolina State University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
181 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
주기사항  
Advisor: Baker, Justin.
학위논문주기  
Thesis (Ph.D.)--North Carolina State University, 2025.
초록/해제  
요약In light of growing sustainability concerns and interest in the restoration of upland oak communities from both private and public sectors, this dissertation broadly examines the issue of oak (Quercus) sustainability through three lenses: prevailing harvest/management activity, accessibility of physical inventory, and potential management practices at a landscape scale. To that end, we adapt publicly available Forest Inventory and Analysis (FIA) data and perform a suite of empirical, spatial, and simulative analyses.To address prevailing/management concerns, we perform an empirical analysis that: a) explores the association between high-grading (an exploitative harvest practice) and mesophication; and b) assesses the role of on-site characteristics (including amenities) and market signal (price) driving the choice of harvest practice in oak forests of the southeastern US. Results show that high-grading has a significant and positive association with mesophication on harvested sites. Additionally, the random utility-based harvest choice model reveals that amenities and timber outputs have a complementary effect on the choice of high-grading. We further estimate the willingness-to-accept (WTA) value at $7.62 per thousand board feet, or $9.23 per acre, on average, across the region.To address accessibility concerns, we use a mix of regression and spatial analysis to estimate and map out the inventory reduction rate under some loosely categorized biophysical and social constraints on forest land in the eastern US. Additionally, we apply plot-specific reduction rates to estimate accessible timber inventory on timber basins across the eastern US; we extend this approach to estimate accessible carbon inventory together with accessible white oak (Quercus alba) inventory. Results indicate that site physiography, site productivity, ownership group, distance to road, slope, management experience, and amenity significantly contribute to the absence of management/harvest in the eastern forest land; the average inventory accessibility reduction rate is estimated at 0.88, ranging from 0.75 to 0.99. Additionally, more accessible spots (or lower inventory reduction rate) are significantly clustered in areas with relatively high harvest activity, such as the southern Atlantic and Gulf Coast Plains, southwest Arkansas, and the Northeast mixed forest in Maine. Conversely, less accessible spots (or higher inventory reduction rate) are significantly clustered in areas with little or no harvest activity, such as prairie parkland and shrubland in west Texas, the Ouachita Mountains, the Ozarks, and the Blue Ridge and Alleghany Mountains in the Central Appalachian broadleaf forest.To examine the potential of management practices for improved oak sustainability at a landscape level, we simulate a hypothetical management intervention in mixed oak forests in the southern Appalachian region of North Carolina. Specifically, this chapter applies the Forest Vegetation Simulator (FVS), a commonly used forest growth and yield model. We link existing plot-level FIA inventory data with two alternative management prescriptions - no management (consistent with current practices and market-driven high-grading) and under/mid/overstory removal of prolific oak competitors. Results suggest that the management intervention has the potential to enhance the timber value of stands by promoting the growth of "crop" tree species groups, such as oaks and hickories, generate upfront revenue from the removal of oak competitors - assuming markets exist - and reverse the mesophication of oak forests. This work suggests the need for policy interventions to support markets for small-diameter roundwood in Southern Appalachia to support both rural economic development and the future sustainability of these hardwood systems.
일반주제명  
Forestry
일반주제명  
Timber
일반주제명  
Aesthetics
일반주제명  
Wood products
일반주제명  
Agriculture
일반주제명  
Landowners
일반주제명  
Forest management
일반주제명  
Ownership
일반주제명  
Sustainability
일반주제명  
Spatial analysis
일반주제명  
Harvest
일반주제명  
Environmental science
키워드  
Oak communities
키워드  
Forest Inventory and Analysis
기타저자  
North Carolina State University.
기본자료저록  
Dissertations Abstracts International. 87-04B.
전자적 위치 및 접속  
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MARC

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■020    ▼a9798297622227
■035    ▼a(MiAaPQ)AAI32331593
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a634.9
■1001  ▼aDhungel,  Gaurav.
■24510▼aLong-term  Sustainability  of  Oaks  in  the  US:  Role  of  Management  and  Markets
■260    ▼a[Sl]▼bNorth  Carolina  State  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a181  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-04,  Section:  B.
■500    ▼aAdvisor:  Baker,  Justin.
■5021  ▼aThesis  (Ph.D.)--North  Carolina  State  University,  2025.
■520    ▼aIn  light  of  growing  sustainability  concerns  and  interest  in  the  restoration  of  upland  oak  communities  from  both  private  and  public  sectors,  this  dissertation  broadly  examines  the  issue  of  oak  (Quercus)  sustainability  through  three  lenses:  prevailing  harvest/management  activity,  accessibility  of  physical  inventory,  and  potential  management  practices  at  a  landscape  scale.  To  that  end,  we  adapt  publicly  available  Forest  Inventory  and  Analysis  (FIA)  data  and  perform  a  suite  of  empirical,  spatial,  and  simulative  analyses.To  address  prevailing/management  concerns,  we  perform  an  empirical  analysis  that:  a)  explores  the  association  between  high-grading  (an  exploitative  harvest  practice)  and  mesophication;  and  b)  assesses  the  role  of  on-site  characteristics  (including  amenities)  and  market  signal  (price)  driving  the  choice  of  harvest  practice  in  oak  forests  of  the  southeastern  US.  Results  show  that  high-grading  has  a  significant  and  positive  association  with  mesophication  on  harvested  sites.  Additionally,  the  random  utility-based  harvest  choice  model  reveals  that  amenities  and  timber  outputs  have  a  complementary  effect  on  the  choice  of  high-grading.  We  further  estimate  the  willingness-to-accept  (WTA)  value  at  $7.62  per  thousand  board  feet,  or  $9.23  per  acre,  on  average,  across  the  region.To  address  accessibility  concerns,  we  use  a  mix  of  regression  and  spatial  analysis  to  estimate  and  map  out  the  inventory  reduction  rate  under  some  loosely  categorized  biophysical  and  social  constraints  on  forest  land  in  the  eastern  US.  Additionally,  we  apply  plot-specific  reduction  rates  to  estimate  accessible  timber  inventory  on  timber  basins  across  the  eastern  US;  we  extend  this  approach  to  estimate  accessible  carbon  inventory  together  with  accessible  white  oak  (Quercus  alba)  inventory.  Results  indicate  that  site  physiography,  site  productivity, ownership  group,  distance  to  road,  slope,  management  experience,  and  amenity  significantly  contribute  to  the  absence  of  management/harvest  in  the  eastern  forest  land;  the  average  inventory  accessibility  reduction  rate  is  estimated  at  0.88,  ranging  from  0.75  to  0.99.  Additionally,  more  accessible  spots  (or  lower  inventory  reduction  rate)  are  significantly  clustered  in  areas  with  relatively  high  harvest  activity,  such  as  the  southern  Atlantic  and  Gulf  Coast  Plains,  southwest  Arkansas,  and  the  Northeast  mixed  forest  in  Maine.  Conversely,  less  accessible  spots  (or  higher  inventory  reduction  rate)  are  significantly  clustered  in  areas  with  little  or  no  harvest  activity,  such  as  prairie  parkland  and  shrubland  in  west  Texas,  the  Ouachita  Mountains,  the  Ozarks,  and  the  Blue  Ridge  and  Alleghany  Mountains  in  the  Central  Appalachian  broadleaf  forest.To  examine  the  potential  of  management  practices  for  improved  oak  sustainability  at  a  landscape  level,  we  simulate  a  hypothetical  management  intervention  in  mixed  oak  forests  in  the  southern  Appalachian  region  of  North  Carolina.  Specifically,  this  chapter  applies  the  Forest  Vegetation  Simulator  (FVS),  a  commonly  used  forest  growth  and  yield  model.  We  link  existing  plot-level  FIA  inventory  data  with  two  alternative  management  prescriptions  -  no  management  (consistent  with  current  practices  and  market-driven  high-grading)  and  under/mid/overstory  removal  of  prolific  oak  competitors.  Results  suggest  that  the  management  intervention  has  the  potential  to  enhance  the  timber  value  of  stands  by  promoting  the  growth  of  "crop"  tree  species  groups,  such  as  oaks  and  hickories,  generate  upfront  revenue  from  the  removal  of  oak  competitors  -  assuming  markets  exist  -  and  reverse  the  mesophication  of  oak  forests.  This  work  suggests  the  need  for  policy  interventions  to  support  markets  for  small-diameter  roundwood  in  Southern  Appalachia  to  support  both  rural  economic  development  and  the  future  sustainability  of  these  hardwood  systems.
■590    ▼aSchool  code:  0155.
■650  4▼aForestry
■650  4▼aTimber
■650  4▼aAesthetics
■650  4▼aWood  products
■650  4▼aAgriculture
■650  4▼aLandowners
■650  4▼aForest  management
■650  4▼aOwnership
■650  4▼aSustainability
■650  4▼aSpatial  analysis
■650  4▼aHarvest
■650  4▼aEnvironmental  science
■653    ▼aOak  communities
■653    ▼aForest  Inventory  and  Analysis
■690    ▼a0473
■690    ▼a0650
■690    ▼a0640
■690    ▼a0478
■690    ▼a0768
■71020▼aNorth  Carolina  State  University.
■7730  ▼tDissertations  Abstracts  International▼g87-04B.
■790    ▼a0155
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360866▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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