施肥对红松天然林林木生长和结实的影响

Effect of Fertilization on Growth and Fruiting of Natural Pinus koraiensis Forest

本文研究了汪清地区不同郁闭度红松天然林施肥量及肥料配比对红松生长和结实的影响,结果表明:合理的施肥量和肥料配比可以有效促进红松生长,提高结实量(球果质量和果仁千粒重)。郁闭度<0.7的红松林施肥对红松生长、球果质量和果仁千粒重的促进作用要比郁闭度>0.7的林分更有效,并筛选出最佳的施肥组合。

The effects of fertilization amount and different fertilizer ratios on the growth and fruiting of Pinus koraiensis in natural forest with different canopy density in Wangqing area were studied in this paper.The results showed that reasonable fertilization amount and fertilizer ratio could effectively promote the growth of Pinus koraiensis and increase the fruiting yield(cone weight and 1000-kernel weight).The fertilization in Pinus koraiensis forest with canopy density<0.7 was more effective in promoting the growth,cone weight and 1000-kernel weight than that in the stand with canopy density>0.7.The best fertilization combination was selected.