There is conflicting evidence regarding the amount of north - south differentiation in loblolly pine.
关于火炬松南北分化的数量存在着相抵触的证据。
Studies have shown that the white pine and loblolly pine are two kinds of trees that grow well on marginal land.
研究表明，美国五针松和火炬松在边缘土地上长势很好。
This paper deals with the spatial distribution patterns of the larvae of Diorycitria rubella in masson pine and loblolly pine using the frequency distribution analysis and aggregation indices.
应用频次分析法和聚集度指标法对微红梢斑螟在马尾松和火炬松林中的空间分布进行研究。
Our results showed that it is necessary to focus on checking and quarantining wood or woody package from North America, especially douglas firs, ponderosa pines, slash pines and loblolly pines.
分析结果也表明：口岸检疫要重点对来自北美的木材、货物木质包装进行核查和检疫，其中花旗松、西黄松、湿地松、火炬松等更需要重点检疫。
Our results showed that it is necessary to focus on checking and quarantining wood or woody package from North America, especially douglas firs, ponderosa pines, slash pines and loblolly pines.
分析结果也表明：口岸检疫要重点对来自北美的木材、货物木质包装进行核查和检疫，其中花旗松、西黄松、湿地松、火炬松等更需要重点检疫。
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