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风蚀对淤积砂壤土中红松后期生长的影响是能定量表示的.以斯巴达地区46年生的红松为例,侵蚀区内的红松直径、高度、生境指标都比非侵蚀区的小(P=0.003),生长减慢的速度较快,研究表明树高相差42%.在无植被的砂壤土条件下,风蚀已经成为一种很严重的公害.风蚀发生迅速,破坏土壤生产能力,造成地表面有机质和有效营养成分大量流失,作物产量下降.在这类地区,常常用植树造林的方法恢复植被,减少风蚀.风蚀公使生长在这里的树木生长减慢.但是,以前很少有资料证实这种假设.我们探索研究用定量的方法,确定风蚀对树木生长后期的影响和风蚀对砂壤土表面的侵蚀.
The effect of wind erosion on the late growth of Pinus koraiensis in the silt sandy loam can be quantitatively indicated. Taking the 46-year-old Korean pine as an example, the diameter, height and habitat of Korean pine in the eroded area are smaller than those in non-erosion area (P = 0.003), the growth slowed down quickly, the study showed a difference of 42% tree height.Under the conditions of vegetation sandy loam, wind erosion has become a very serious public hazard.The wind erosion occurs rapidly, destroying soil productivity, Resulting in a substantial loss of organic matter and available nutrients on the surface and a drop in crop yields. In these areas, vegetation is often rehabilitated by afforestation to reduce wind erosion, and growth of trees is slowed by wind erosion. Confirming this hypothesis, we explored ways to quantify the effect of wind erosion on later growth of trees and the erosion of sandy loam surface by wind erosion.