Bulletin of the Torrey Botanical Club最新文献_第7页

Intermountain Flora, Volume Five: The Asterales. 《山间植物志》第五卷:星形植物。

Bulletin of the Torrey Botanical Club Pub Date : 1995-07-01 DOI: 10.2307/2996090

S. Clemants, A. Cronquist

引用次数: 1

Community-Level Allometric Relationships Among Length, Planar Area, and Biomass of Fine Roots on a Coastal Barrier Island 沿海堰洲岛细根长度、平面面积和生物量的异速生长关系

Bulletin of the Torrey Botanical Club Pub Date : 1995-07-01 DOI: 10.2307/2996084

Richard E. Snook, F. Day

{"title":"Community-Level Allometric Relationships Among Length, Planar Area, and Biomass of Fine Roots on a Coastal Barrier Island","authors":"Richard E. Snook, F. Day","doi":"10.2307/2996084","DOIUrl":"https://doi.org/10.2307/2996084","url":null,"abstract":"predict biomass and biomass change. The objective of this study was to determine if predictive communitylevel allometric relationships between root length, planar area and biomass existed in a coastal barrier island dune ecosystem. Fine root samples were extracted monthly from four dune and swale areas along a chronosequence (6, 24, 36, and 120 years old) on Hog Island, part of the Virginia Coast Reserve-Long Term Ecological Research site. Dominant life forms were rhizomatous perennial grasses on the dunes and in younger swales and shrubs in the older swales. Root planar area in May and August yielded the stronger regression relationships, with winter values exhibiting greater variability. An analysis of covariance (ANCOVA) was used to examine the heterogeneity of regression slopes among sample dates. Both root length and area models exhibited significantly greater slopes during the course of the growing season. The regression slopes for the oldest dune site displayed no significant differences with season for either length or area. Data from the swales produced stronger predictive relationships than the dunes. These results provide a foundation for indirect root biomass estimates in this system.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2996084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68402689","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: 4

A Floristic Plant Ecology Study of the Limestone Glades of Northern Alabama 阿拉巴马州北部石灰岩林地植物区系生态学研究

Bulletin of the Torrey Botanical Club Pub Date : 1995-07-01 DOI: 10.2307/2996087

J. Baskin, D. H. Webb, C. Baskin

引用次数: 39

Wood anatomy of Drosophyllum (Droseraceae): ecological and phylogenetic considerations 果蝇科的木材解剖:生态学和系统发育的考虑

Bulletin of the Torrey Botanical Club Pub Date : 1995-07-01 DOI: 10.2307/2996082

S. Carlquist, E. J. Wilson

引用次数: 13

Sampling devices for the measurement of seed rain and hydrochory in rivers1 测量河流种子雨和水文的取样装置

Bulletin of the Torrey Botanical Club Pub Date : 1995-04-01 DOI: 10.2307/2996454

B. Middleton

引用次数: 35

From Coastal Wilderness to Fruited Plain: A History of Environmental Change in Temperate North America from 1500 to the Present. 从沿海荒野到硕果累累的平原:1500年至今的北美温带环境变化史。

Bulletin of the Torrey Botanical Club Pub Date : 1995-04-01 DOI: 10.2307/2996456

D. Gibson, G. Whitney

引用次数: 391

Salinity Response, Distribution, and Possible Dispersal of a Barrier Island Strand Glycophyte, Strophostyles umbellata (Fabaceae) 一种堰洲岛滨带伞形伞花糖类植物的盐度响应、分布及可能的扩散

Bulletin of the Torrey Botanical Club Pub Date : 1995-04-01 DOI: 10.2307/2996447

David L. Erickson, D. Young

引用次数: 12

Mortality of western larch seedlings in relation to seedbed characteristics at the dry end of its ecological range 西部落叶松生态区干端苗床特征与幼苗死亡率的关系

Bulletin of the Torrey Botanical Club Pub Date : 1995-04-01 DOI: 10.2307/2996448

B. Oswald, L. Neuenschwander, L. Neuenschwander

{"title":"Mortality of western larch seedlings in relation to seedbed characteristics at the dry end of its ecological range","authors":"B. Oswald, L. Neuenschwander, L. Neuenschwander","doi":"10.2307/2996448","DOIUrl":"https://doi.org/10.2307/2996448","url":null,"abstract":"OSWALD, B. P. (Department of Plant and Soil Science, Alabama A&M University, Normal, AL 35762) AND L. F. NEUENSCHWANDER (College of Forestry, Wildlife and Range Sciences, University of Idaho, Moscow, ID 83843). Mortality of westem larch seedlings in relation to seedbed characteristics at the dry end of its ecological range. Bull. Torr. Bot. Club 122: 101-108. 1995.-The effects of different seedbeds on westem larch (Larix occidentalis Nutt.) germination and seedling mortality were assessed in a grand fir/ninebark (Abies grandis ((Dougl. ex. D.Don) Lindl.))/(Physocarpus malvaceus((Greene) Kuntze)) habitat type in northem Idaho, U.S.A. Two plots were established on each of four sites, and 150 westem larch seeds (66% viable) were distributed on each of 16 randomly applied seedbed modification combinations (bumed or mechanical scarified, mineral soil or duff, shaded or non-shaded, caged or non-caged for protection from predation). Germination percentages and seedling development were significantly greater (4-10 times) on caged units than on uncaged units by midJuly. Shading did not significantly affect germination percentage or initial seedling establishment. No significant differences occurred in germination or initial seedling establishment between bumed and unbumed treatments. Mortality of seedlings, most likely caused by a month-long dry period with high temperatures, resulted in no significant differences in seedling numbers among treatments by mid-August the first year after seed dispersal. On the dry end of this species' range, there does not appear to be any difference in seedling survival from seedbed modification.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2996448","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68407500","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: 10

VEGETATIVE STRUCTURE AND COMPOSITION OF SOUTHERN APPALACHIAN RIPARIAN FORESTS 南阿巴拉契亚河岸森林的营养结构和组成

Bulletin of the Torrey Botanical Club Pub Date : 1995-04-01 DOI: 10.2307/2996452

C. Hedman, D. V. Lear

{"title":"VEGETATIVE STRUCTURE AND COMPOSITION OF SOUTHERN APPALACHIAN RIPARIAN FORESTS","authors":"C. Hedman, D. V. Lear","doi":"10.2307/2996452","DOIUrl":"https://doi.org/10.2307/2996452","url":null,"abstract":"HEDMAN, CRAUG W. (Southlands Experiment Forest, International Paper, Bainbridge, GA 31717) AND DAvID H. VAN LEAR (Department of Forest Resources, Clemson University, Clemson, SC 29634-1003). Vegetative structure and composition of Southern Appalachian riparian forests. Bull. Torrey Bot. Club 122: 134-144. 1995.-Vegetative characteristics of twelve Southern Appalachian riparian forests were sampled as part of a larger study which examined functional attributes of riparian zones. Riparian forests were representative of the mixed mesophytic forest, eastern hemlock forest, and transitions between these types. Earlyand mid-successional stages were generally dominated by an overstory of pioneering shade-intolerant species and had an even-aged structure. The diameter distribution of these relatively young stands of mixed species was typically inverse J-shaped. Late-successional and old-growth stages were dominated by shade-tolerant or moderately tolerant overstory species and were uneven-aged. Diameter distribution in these older stands approximated a rotated sigmoid curve. Rhododendron (Rhododendron maximum L.) was the dominant understory species and controlled understory and midstory composition. Characterization of riparian forests in different stages of succession will help understanding of vegetative processes and forms the basis of subsequent ecological studies of riparian functional dynamics.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2996452","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68407124","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: 45

Harvest-created and natural canopy gaps in an oak-pine forest in Maine 缅因州橡树松林的收获和自然树冠缝隙

Bulletin of the Torrey Botanical Club Pub Date : 1995-04-01 DOI: 10.2307/2996450

Alan J. Kimball, J. Witham, James L. Rudnicky, Alan S. White, M. Hunter

引用次数: 30