Southern Journal of Applied Forestry最新文献_第9页

Economics of Ethanol Production Using Feedstock from Slash Pine (Pinus elliottii) Plantations in the Southern United States 使用美国南部湿地松(Pinus elliottii)种植园原料生产乙醇的经济学

Southern Journal of Applied Forestry Pub Date : 2011-05-01 DOI: 10.1093/SJAF/35.2.61

Tyler S. Nesbit, J. Alavalapati, P. Dwivedi, M. Marinescu

引用次数: 19

Forest Biomass Supply for Bioenergy Production and Its Impacts on Roundwood Markets in Tennessee 田纳西州森林生物质对生物能源生产的供应及其对圆材市场的影响

Southern Journal of Applied Forestry Pub Date : 2011-05-01 DOI: 10.1093/SJAF/35.2.80

Zhimei Guo, D. Hodges, R. Abt

引用次数: 10

Virginia's Woody Biomass Market: Opportunities and Implications 弗吉尼亚木质生物质市场:机遇与启示

Southern Journal of Applied Forestry Pub Date : 2011-05-01 DOI: 10.1093/SJAF/35.2.67

J. Conrad, M. Bolding

引用次数: 14

Impact of Imidacloprid for control of Hemlock Woolly Adelgid on nearby aquatic macroinvertebrate asseblages. 吡虫啉防治铁杉毛蚜对附近水生大型无脊椎动物群落的影响。

Southern Journal of Applied Forestry Pub Date : 2011-02-01 DOI: 10.1093/SJAF/35.1.26

M. A. Churchel, J. Hanula, C. Berisford, J. Vose, M. Dalusky

{"title":"Impact of Imidacloprid for control of Hemlock Woolly Adelgid on nearby aquatic macroinvertebrate asseblages.","authors":"M. A. Churchel, J. Hanula, C. Berisford, J. Vose, M. Dalusky","doi":"10.1093/SJAF/35.1.26","DOIUrl":"https://doi.org/10.1093/SJAF/35.1.26","url":null,"abstract":"Imidacloprid, a systemic insecticide that acts on the nervous system, is currently being used to control hemlock woolly adelgid (Adelges tsugae Annand), which is damaging hemlock trees. The objective of this study was to determine whether soil injection with imidacloprid for hemlock woolly adelgid control near streams adversely affects aquatic invertebrates. Eastern hemlocks (Tsuga canadensis) in the watersheds surrounding four streams in the southern Appalachian region of Georgia and North Carolina were treated with imidacloprid. Addie Branch was the only stream that exhibited a possible effect from imidacloprid treatment. However, the data followed the same pattern as the other treatment streams, but with a more pronounced decrease in taxa due to adult emergence. Only a trace amount of imidacloprid was detected in one water sample from Holcomb Tributary over a period of 2 years, and no effect was observed on the aquatic macroinvertebrates in that stream. However, caution should be used when applying these results to other areas with different soil types (e.g., low organic matter content) that may not bind imidacloprid as tightly. Our results indicate that soil injections of imidacloprid can safely be used in the southern Appalachian area to control hemlock woolly adelgid.","PeriodicalId":51154,"journal":{"name":"Southern Journal of Applied Forestry","volume":"35 1","pages":"26-32"},"PeriodicalIF":0.0,"publicationDate":"2011-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1093/SJAF/35.1.26","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61302301","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: 14

Landowner Motivations for Owning Woodland on the Tennessee Northern Cumberland Plateau 田纳西州北坎伯兰高原土地所有者拥有林地的动机

Southern Journal of Applied Forestry Pub Date : 2011-02-01 DOI: 10.1093/SJAF/35.1.39

B. Kaetzel, D. Hodges, J. Fly

引用次数: 4

Optimal Cross-Sectional Sampling Strategy for Red Oak Borer (Coleoptera: Cerambycidae) Scars within Northern Red Oaks 北红栎树红橡树螟虫(鞘翅目:天牛科)病害的最佳横截面抽样策略

Southern Journal of Applied Forestry Pub Date : 2011-02-01 DOI: 10.1093/SJAF/35.1.44

L. Haavik, F. Stephen

{"title":"Optimal Cross-Sectional Sampling Strategy for Red Oak Borer (Coleoptera: Cerambycidae) Scars within Northern Red Oaks","authors":"L. Haavik, F. Stephen","doi":"10.1093/SJAF/35.1.44","DOIUrl":"https://doi.org/10.1093/SJAF/35.1.44","url":null,"abstract":"We used dendrochronological techniques to develop an optimal sampling strategy for the purpose of investigating the history of red oak borer (Enaphalodes rufulus [Haldeman]) population patterns within northern red oaks (Quercus rubra L.). We cut the entire length of three northern red oak tree boles into cross-sections, sanded top and bottom surfaces of each cross-section, and dated all scars within each bole. Our goal was to devise a strategy to reduce the amount of bole sampled without compromising the data necessary to accurately estimate historical population patterns of red oak borer. When we tested four possible sampling strategies and compared them with the entire-tree data sets from which they originated, we found no statistical differences in the distribution of scar counts by year. We also assessed processing time and found that compared with sampling an entire host bole, sampling strategies that include the lower 20% or 30% of boles would reduce labor efforts by 55–63%. We suggest that development of similar sampling methods for other bark or wood-boring species may be possible if the relationship between insect life history and annual tree-ring formation, as well as the general spatial and temporal distribution of insect evidence within trees, is known.","PeriodicalId":51154,"journal":{"name":"Southern Journal of Applied Forestry","volume":"147 1","pages":"44-49"},"PeriodicalIF":0.0,"publicationDate":"2011-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1093/SJAF/35.1.44","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61302537","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: 6

Economic Impacts of Projecting Horizontal Angles to the Wrong Height When Conducting Point Sampling 在进行点采样时，将水平角度投影到错误高度对经济的影响

Southern Journal of Applied Forestry Pub Date : 2011-02-01 DOI: 10.1093/sjaf/35.1.33

C. VanderSchaaf, Lewis Jordan

{"title":"Economic Impacts of Projecting Horizontal Angles to the Wrong Height When Conducting Point Sampling","authors":"C. VanderSchaaf, Lewis Jordan","doi":"10.1093/sjaf/35.1.33","DOIUrl":"https://doi.org/10.1093/sjaf/35.1.33","url":null,"abstract":"Point-sampling selects sample trees by projecting horizontal angles. In many inventories, angles are to be projected to where diameter at breast height (d.b.h.) is measured (4.5 feet above the ground), but due to user error, angles are often projected to diameters at other heights. Thus, errors are made as to which trees should be sampled, probabilities of sampling individual trees are incorrect, and the basal area estimate does not truly correspond to d.b.h. The objective of this paper is to determine the potential economic impacts of projecting angles at heights other than d.b.h. when d.b.h. is the desired height. Projections at age 15 years for 200 surviving trees per acre on a low quality site (site index 50 feet at base age 25) and for 400 and 700 trees per acre on a higher quality site (site index 70 feet at base age 25) were examined. On all three sites, two ages (20 and 30) were used to establish virtual plantations and sampling was conducted using 10 and 20 basal area factor prisms by projecting horizontal angles to four heights: 4.5 feet, 5.0 feet, 5.5 feet, and 6.0 feet. A taper equation was used to estimate changes in diameter along the stem. For the stand conditions examined, incorrectly projecting angles to heights other than d.b.h. reduced timber appraisals by as much as 7.4 percent and up to $170 per acre. Across many acres and stands, this type of nonsampling error can result in serious errors in valuing stumpage.","PeriodicalId":51154,"journal":{"name":"Southern Journal of Applied Forestry","volume":"35 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"2011-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1093/sjaf/35.1.33","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61302314","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: 0

Longleaf Pine Root System Development and Seedling Quality in Response to Copper Root Pruning and Cavity Size 铜根修剪和空腔大小对长叶松根系发育和幼苗质量的影响

Southern Journal of Applied Forestry Pub Date : 2011-02-01 DOI: 10.1093/SJAF/35.1.5

M. S. Sayer, S. S. Sung, J. Haywood

引用次数: 17

Spectral Identification of Previsual Northern Red Oak (Quercus rubra L.) Foliar Symptoms Related to Oak Decline and Red Oak Borer (Coleoptera: Cerambycidae) Attack 早期北方红橡树(Quercus rubra L.)光谱识别与橡树衰退和红橡树蛀虫(鞘翅目:天牛科)侵袭有关的叶面症状

Southern Journal of Applied Forestry Pub Date : 2011-02-01 DOI: 10.1093/SJAF/35.1.18

J. Riggins, J. Chávez, J. A. Tullis, F. Stephen

引用次数: 6

A mixed-effects height-diameter model for individual loblolly and slash pine trees in east Texas 德克萨斯州东部单株火炬松和湿地松的混合效应高度-直径模型

Southern Journal of Applied Forestry Pub Date : 2011-02-01 DOI: 10.1093/SJAF/35.1.12

D. Coble, Young Jin Lee

引用次数: 13