高海拔地区火炬松人工林凋落物量及养分季节动态初步研究

Seasonal Dynamic Study on the Amount and Nutrient of Litter of Pinus taeda Plantations in the High-Elevation Area

通过高海拔地区火炬松人工林凋落物量及养分季节动态变化的研究 ,为揭示生态系统养分循环特征以及科学施肥提供理论依据。研究结果表明 ,凋落物中各营养元素含量一般在 5月份和 8月份达最高 。

The seasonal dynamic study on the amount and nutrient of litter of Pinus taeda plantations in the highelevation area provides the theoretical foundation for revealing the ecosystem nutrient cycle features and the scientific fertilization.The study results indicate that various nutritional element contents of litter reach the highest in May or in August normally,of which the display of Na element is most typical.