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某些高等植物有能够在水涝和通气不良的土壤上存活和生长的适应机制,关于这方面的知识在过去几十年来大大地增加了。不过,对于水涝条件仅能适度忍耐的树种,它们对周期性淹水和缺氧的具体适应变化和生长反应,仍然了解甚少,在这类情况下有关养分的信息,更加有限。而这些信息对潮湿低地的林木经营,可能有着重要的关系。美国东南沿海平原的许多低洼立地上,过量的土壤水分限制了松树的生长,通常采用开沟或作床来控制水位。在潮湿森林土壤施用磷肥,火炬松和湿地松往往得到良好的生长反应。有些例子中,施磷
Some higher plants have adaptation mechanisms that are capable of surviving and growing in floods and poorly ventilated soils, and knowledge in this area has greatly increased in the past few decades. However, tree species that are only tolerant of waterlogging conditions are still poorly informed of the specific adaptations and growth responses to periodic flooding and hypoxia, and information on nutrients is more limited in such cases. This information may have an important bearing on forest management in humid lowlands. Excess soil moisture limits the growth of pine trees in many low-lying stands on the southeastern coastal plains of the United States, often using ditches or beds to control the water level. Phosphate fertilizers, Pinus taeda and Pinus elliottii are often well-grounded in moist forest soils. In some cases, phosphorus is applied