Based on the field observation and indoor determination,an investigation in Loess Hilly Region was made on vertical distribution of fine root characteristics and soil properties within the recovery of artificial Pinus tabulaeformis.The results showed that:(1) The ability to improve soil structure under the low-density pine forest was better than that under mid-density and high-density forest,and the logging area was the worst.(2) In the 0—300 cm layer,the soil moisture content declined with the increasing d...
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