Hurricane Katrina Winds Damaged Longleaf Pine Less than Loblolly Pine
Hurricane Katrina Winds Damaged Longleaf Pine Less than Loblolly Pine
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DOI：
10.1093/sjaf/33.4.178
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发表时间：
2009-11-01
影响因子：
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通讯作者：
Nelson, C. Dana
中科院分区：
文献类型：
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作者：
Johnsen, Kurt H.;Butnor, John R.;Nelson, C. Dana
一些证据表明，长叶松可能比湿地松（Pinus elliotii Englem）更能忍受大风。或火炬松（Pinus taeda L.）。我们在密西西比东南部的一个普通花园实验中研究了卡特里娜飓风对这三种松树的风害，卡特里娜飓风是一个非常大的3级飓风，于2005年8月直接影响了松树林。该实验是1960年建立的造林处理的析因安排，包括120块地，每块地100棵树，占地约22公顷。飓风过后，对所有树木的胸径进行了测量，并对每棵树因风灾而死亡的情况进行了评级。长叶松的死亡率（7%）低于其他两个物种（湿地松，14%;火炬松，26%），虽然死亡率的差异只有长叶松和火炬松之间的统计学显着。长叶松每公顷损失的茎数和断面积明显少于其他两个树种。不同物种之间的死亡率差异不是平均小区树高或小区密度的函数。我们的分析表明，长叶松比火炬松更能抵抗风害。
Some evidence suggests that longleaf pine might be more tolerant of high winds than either slash pine (Pinus elliotii Englem.) or loblolly pine (Pinus taeda L.). We studied wind damage to these three pine species in a common garden experiment in southeast Mississippi following Hurricane Katrina, a very large, Category 3 hurricane that directly affected the stand in August 2005. The experiment, a factorial arrangement of silvicultural treatments established in 1960, included 120 plots of 100 trees each, covering about 22 ha. Following the hurricane, dbh was measured on all trees, and each tree was rated with respect to mortality from wind damage. Longleaf pine suffered less mortality (7%) than the other two species (slash pine, 14%; loblolly pine, 26%), although the differences in mortality were statistically significant only between longleaf pine and loblolly pine. Longleaf pine lost significantly fewer stems per hectare and less basal area than the two other species. Differences in mortality among species were not a function of mean plot tree height or plot density. Our analyses indicate that longleaf pine is more resistant to wind damage than loblolly pine.