Northern Journal of Applied Forestry最新文献_第5页

Effects of Ice Storm Damage on Hardwood Survival and Growth in Ohio 冰暴灾害对俄亥俄州硬木生存和生长的影响

Northern Journal of Applied Forestry Pub Date : 2012-06-01 DOI: 10.5849/NJAF.10-053

R. Turcotte, T. Elliott, Mary Ann Fajvan, Yong-Lak Park, D. A. Snider, P. Tobin

{"title":"Effects of Ice Storm Damage on Hardwood Survival and Growth in Ohio","authors":"R. Turcotte, T. Elliott, Mary Ann Fajvan, Yong-Lak Park, D. A. Snider, P. Tobin","doi":"10.5849/NJAF.10-053","DOIUrl":"https://doi.org/10.5849/NJAF.10-053","url":null,"abstract":"In 2003, an ice storm occurred across four Mid-Atlantic states. This study investigated the effects of the ice-storm damage on growth and mortality of five tree species (Acer rubrum, Acer saccharum, Quercus alba, Quercus prinus, and Quercus rubra) from three forest stands in the Wayne National Forest in Ohio. We remeasured the same trees five times between 2003 and 2009. Logistic regression analysis of mortality revealed significant (P 0.05) effects of tree species, crown damage, and size class. We detected a significant effect of crown class on epicormic branching (P 0.01), and saplings and poles as a group had significantly less dieback than sawtimber (P 0.01). Dieback also varied according to crown class, with codominant and dominant trees having significantly (P 0.05) more dieback than both intermediate and overtopped trees. We detected a significant (P 0.01) reduction in diameter growth when 33% of a tree’s crown was damaged. The results of this study will help forest managers to make decisions about salvage, sanitation, and forest rehabilitation efforts following ice storm damage.","PeriodicalId":19281,"journal":{"name":"Northern Journal of Applied Forestry","volume":"29 1","pages":"53-59"},"PeriodicalIF":0.0,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5849/NJAF.10-053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70977505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Sticks plus trees meets 3P 树枝加树等于3P

Northern Journal of Applied Forestry Pub Date : 2012-06-01 DOI: 10.5849/NJAF.11-040

T. Burk

引用次数: 0

Parcelization and land use: a case study in the New York City watershed. 土地分割与土地利用:以纽约市流域为例。

Northern Journal of Applied Forestry Pub Date : 2012-06-01 DOI: 10.5849/NJAF.10-038

Jennifer Caron, R. Germain, Nathaniel Anderson

引用次数: 12

Environmental Drivers of Succession in Jack Pine Stands of Boreal Ontario: An Application of Survival Analysis 安大略省北部短叶松林分演替的环境驱动因素:生存分析的应用

Northern Journal of Applied Forestry Pub Date : 2012-06-01 DOI: 10.5849/NJAF.11-016

Trevor W. Longpre, D. Morris

引用次数: 4

Forest type classification accuracy assessment for Michigan's State and National Forests. 密歇根州和国家森林的森林类型分类精度评估。

Northern Journal of Applied Forestry Pub Date : 2012-03-01 DOI: 10.5849/NJAF.09-024

L. Leefers, N. Subedi

引用次数: 2

Regional stem taper equations for eleven conifer species in the Acadian Region of North America: development and assessment. 北美阿卡迪亚地区11种针叶树的区域茎锥方程:开发与评价。

Northern Journal of Applied Forestry Pub Date : 2012-03-01 DOI: 10.5849/NJAF.10-037

R. Li, A. Weiskittel, A. Dick, J. Kershaw, R. Seymour

{"title":"Regional stem taper equations for eleven conifer species in the Acadian Region of North America: development and assessment.","authors":"R. Li, A. Weiskittel, A. Dick, J. Kershaw, R. Seymour","doi":"10.5849/NJAF.10-037","DOIUrl":"https://doi.org/10.5849/NJAF.10-037","url":null,"abstract":"Taper models to predict upper stem diameters, as well as total tree volume, are presented for 11 major conifer species in the Acadian Forest Region of North America. The Kozak (2004. My last words on taper equations. For. Chron. 80:507–514) Model 02 taper equation was used as the base model form. A nonlinear mixed-effects modeling approach was used to account for autocorrelation present among multiple stem analysis observations collected from the same tree. Results show that fitted taper equations can accurately predict both stem form and volume across a range of conditions. The taper models generally had slightly lower bias and root mean square error than the commonly used regional Honer refitted volume equations (1965. A new total cubic foot volume function. For. Chron. 41:476 – 493). The mean absolute bias was reduced up to 28% for certain species using the fitted taper equations compared with the refitted Honer (1965) equations, although the refitted Honer’s models are also quite accurate where total stemwood volumes are needed. Independent validation data sets were used to further confirm reliability and accuracy of fitted taper models in predicting tree volume. These data sets indicated that the equations performed well, in general, but were slightly biased in certain thinned stands and in some New Brunswick ecoregions. Additional data are needed to confirm this and potentially improve model behavior. Overall, the models will be useful for predicting both stem form and merchantable and total volume.","PeriodicalId":19281,"journal":{"name":"Northern Journal of Applied Forestry","volume":"29 1","pages":"5-14"},"PeriodicalIF":0.0,"publicationDate":"2012-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5849/NJAF.10-037","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70977100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 86

Relationships between Soil compaction and harvest season, soil texture, and landscape position for aspen forests 白杨林土壤压实度与收获季节、土壤质地和景观位置的关系

Northern Journal of Applied Forestry Pub Date : 2012-03-01 DOI: 10.5849/NJAF.10-039

R. Kolka, Aaron Steber, K. Brooks, C. Perry, M. Powers

{"title":"Relationships between Soil compaction and harvest season, soil texture, and landscape position for aspen forests","authors":"R. Kolka, Aaron Steber, K. Brooks, C. Perry, M. Powers","doi":"10.5849/NJAF.10-039","DOIUrl":"https://doi.org/10.5849/NJAF.10-039","url":null,"abstract":"Although a number of harvesting studies have assessed compaction, no study has considered the interacting relationships of harvest season, soil texture, and landscape position on soil bulk density and surface soil strength for harvests in the western Lake States. In 2005, we measured bulk density and surface soil strength in recent clearcuts of predominantly aspen stands (Populus grandidentata Michx. and Populus tremuloides Michx.) in the Chippewa National Forest in northern Minnesota. We stratified these clearcuts by the season harvested, soil texture, and topographic position. In nearly all cases, we observed higher bulk density and surface soil strength following harvesting compared with adjacent and similar but unharvested stands. Within harvested sites, fine-textured soils generally had higher surface soil strength (more compaction) than coarse-textured soils when harvested in the summer, and fine-textured sites harvested in the summer had higher surface soil strength than those harvested in the winter. Landscape position was an important factor only in fine-textured soils. Both summit and toeslope positions had higher surface soil strength following summer harvesting compared with winter harvesting. Overall, our results indicate that fine-textured soils located on both lower and upper slope positions and harvested during unfrozen soil conditions are most susceptible to compaction during logging.","PeriodicalId":19281,"journal":{"name":"Northern Journal of Applied Forestry","volume":"29 1","pages":"21-25"},"PeriodicalIF":0.0,"publicationDate":"2012-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5849/NJAF.10-039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70977492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

A Comparison of Above-Ground Dry-Biomass Estimators for Trees in the Northeastern United States 美国东北部树木地上干生物量估算器的比较

Northern Journal of Applied Forestry Pub Date : 2012-03-01 DOI: 10.5849/NJAF.11-001

J. Westfall

引用次数: 16

Mixed-Effects Height-Diameter Models for Commercially and Ecologically Important Hardwoods in Minnesota 明尼苏达州重要商业和生态硬木的混合效应高度-直径模型

Northern Journal of Applied Forestry Pub Date : 2012-03-01 DOI: 10.5849/NJAF.11-005

C. VanderSchaaf

引用次数: 14

Predicting Sugar Maple Mortality in Managed Uneven-Aged Northern Hardwood Stands 管理不均龄北方阔叶林中糖枫死亡率预测

Northern Journal of Applied Forestry Pub Date : 2012-03-01 DOI: 10.5849/NJAF.10-054

Diane H. Kiernan, R. D. Nyland, E. Bevilacqua

引用次数: 1