秃杉人工林林下植物和土壤肥力的研究

通过对10年生不同造林密度秃杉人工林林下植被生长状况调查和土壤理化性质的测定,结果表明,随秃杉人工林造林密度增大,林下植被高度、覆盖度和生物量减少,土壤物理性质不良,土壤养分含量降低。秃杉人工林生长过程中要经常调整密度以促进林下植被生长,从而改善土壤理化状况,提高土壤肥力。

Study on Undergrowth Plant and Soil Fertility of Taiwania flousiana Plantation

According to the investigation of the growth of undergrowth plant and the testing of soil physical and chemical properties of 10-year-old Taiwania flousiana plantation with different densities. The results indicated that the height,coverage and biomass of undergrowth vegetation decreased and soil physical and chemical properties became bad and soil fertility dropped with the increasing of planting density of Taiwania flousiana. The density of Taiwania flousiana plantation should be adjusted to accelerate the growth of undergrowth vegetation, thus improving soil physical and chemical properties and increasing soil fertility.