对苏南火炬松人工林中的土壤有效碳进行了研究。
The soil labile carbon in a Pinus taeda plantation in South Jiangsu, China was investigated.
其中一种就是白松，另外一种是火炬松。
One kind of tree is the white pine. Another is the loblolly pine.
关于火炬松南北分化的数量存在着相抵触的证据。
There is conflicting evidence regarding the amount of north - south differentiation in loblolly pine.
另一种是火炬松。防风林不仅能保护土壤和庄稼。
Another is the loblolly pine. Windbreaks not only protect land and crops the wind.
研究表明，美国五针松和火炬松在边缘土地上长势很好。
Studies have shown that the white pine and loblolly pine are two kinds of trees that grow well on marginal land.
而湿地松和火炬松松脂总流量在受害植株和未受害植株间没有显著差异。
Significant difference exists between attacked trees and control trees in oleoresin flow in mason pine but not in exotic pines.
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。
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.
但闽北引种火炬松的存在较为严重的松梢螟危害，其中以低海拔地区的松梢螟危害更为严重。
But the relatively serious borer damage to pine shoot existed in north Fujian, the borer damage to pine shoot with low altitude was more serious.
分离物中多混杂有其他线虫。这是江苏省自1982年发生松材线虫病以来首次关于火炬松自然感病的报道。
The separation of the diseased wood has many other nematode speeies. This is the first reports about the P. taeda L. infected by B. xylophilus in natural environment since 1982 in Jiangsu province.
采用重复熏蒸-培养法研究了苏南丘陵地区具有代表性的栓皮栎次生林和火炬松人工林土壤有效碳的变化特征。
By using sequential fumigation-incubation method, the soil labile carbon in a secondary Quercus variabilis forest and a Pinus taeda plantation in hilly area of South Jiangsu, China was investigated.
文章报导了我国中亚热带地区湿地松、火炬松和晚松种子园和母树林中的害虫种类，共3 4种，涉及7目1 8科。
The paper deals with 34 species of insect pests in orchards and seed stands of mid subtropical area in China. They belong to 18 families, 7 orders.
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。
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.
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