Vascular Flora of Longleaf Pine Woodlands after Wind Disturbance and Salvage Harvesting in the Alabama Fall Line Hills
Vascular Flora of Longleaf Pine Woodlands after Wind Disturbance and Salvage Harvesting in the Alabama Fall Line Hills
复制标题
阿拉巴马州秋线山风扰和抢救收割后长叶松林地的维管植物群
作者：
J. Kleinman;J. Hart
摘要塔拉德加国家森林公园的奥克马尔吉区是亚拉巴马濒危长叶松生态系统的最大遗迹。2016年5月至7月，在Oakmulgee区的长叶松林地中使用嵌套样地和调查样地进行了部分植物区系调查，这些林地受到2011年4月27日EF3龙卷风和随后的抢救性收获作业的不同影响。维管植物进行了鉴定和排名的发生频率（罕见的，偶尔的，常见的，丰富的）在三个干扰类别：不受干扰，风干扰，和复合干扰（风干扰和抢救收获）。共记录了68科137属192种植物。植物分类丰富度最低的未受干扰的网站（90个类群），最大的风干扰的网站（160个类群），减少化合物干扰的网站（126个类群）。虽然抢救性收获减少了分类的丰富性，48个植物类群独特的未收获的风干扰网站的46是罕见的（发生在嵌套样地的<10%）。此外，未受干扰的遗址只有9个独特的类群，其中8个是罕见的。决定是否挽救收获必须考虑这些稀有植物的生态意义。风和化合物干扰的地区可能会恢复到干扰前的条件，这里提出的植物区系列表提供了基线，以监测这种继承。记录的植物区系组成也提供了洞察维管植物的差异干扰的影响，在一个欠研究的地区的长叶松生态系统的短期反应。
ABSTRACT The Oakmulgee District of the Talladega National Forest is the largest remnant of the endangered longleaf pine (Pinus palustris) ecosystem in Alabama. A partial floristic survey using nested plots and survey plots was conducted May–July 2016 in longleaf pine woodlands of the Oakmulgee District that were differentially impacted by a 27 April 2011 EF3 tornado and a subsequent salvage harvesting operation. Vascular plants were identified and ranked by frequency of occurrence (rare, occasional, common, and abundant) in three disturbance categories: undisturbed, wind-disturbed, and compound-disturbed (wind-disturbed and salvage-harvested). Overall, 192 plant taxa in 68 families and 137 genera were documented. Plant taxonomic richness was lowest on undisturbed sites (90 taxa), greatest on wind-disturbed sites (160 taxa), and reduced on compound-disturbed sites (126 taxa). Although salvage harvesting reduced taxonomic richness, 46 of the 48 plant taxa unique to unharvested wind-disturbed sites were rare (occurred on <10% of nested plots). Moreover, undisturbed sites had only nine unique taxa, of which eight were rare. Decisions on whether to salvage harvest must consider the ecological significance of these rare plants. Wind- and compound-disturbed areas may recover toward predisturbance conditions, and the floristic list presented here provides the baseline to monitor this succession. The documented floristic composition also provides insight on short-term responses of vascular plants to differential disturbance impacts in an understudied region of the longleaf pine ecosystem.
在气候变化下的森林干扰。
影响因子：
30.7
作者：
Seidl R;Thom D;Kautz M;Martin-Benito D;Peltoniemi M;Vacchiano G;Wild J;Ascoli D;Petr M;Honkaniemi J;Lexer MJ;Trotsiuk V;Mairota P;Svoboda M;Fabrika M;Nagel TA;Reyer CPO
通讯作者：
Reyer CPO