【摘要】 本文报道了辽宁省彰武县章占台附近沙地上固沙造林试验25年的研究结果。试验表明:流沙经固定后,物理性粘粒（<0.01毫米）含量有所增加;沙土容重透水性相应减小;表层有机质增多;半固定沙土中氮、磷、钾含量分别为流动沙区的1.30,1.09,1.04倍,26年樟子松固定沙土比流动沙土增加纯氮1485公斤/公顷,磷（P₅O₂）1164公斤/公顷,钾（K₂O）2428公斤/公顷。说明固沙造林是一种改良沙土、培肥地力的有效方法。更多还原

【Abstract】 The results of the experiments on sand stablization by plantation and afforestation conducted in the Zhanggu tai District, Liaoning province, for 25 years show that after the plantation, physical clay (0.01mm in its grain size ) content, water holding capacity and organic matter of the aeolian soil increased, and bulk density and permeability of it decreased. N, P and K contents of semi -fixed aeolian soil are 1.30, 1.09 and 1,04 tims of those of unfixed one respectivel y. The N, P205 and K20 contents of aeolian soil have increased by 1485 kg/ha., 1164 kg/ha, and 2428 kg/ha, respectively as a result of thep lantation of pinus sylvestris var. mogolica Litv, for 25 years. It is concluded in the study that it is an effective method to ameliorate and fertilize aeolian soil and to stablize sands by plantation and afforeatation.更多还原