In order to reveal the physiological adaptation mechanism of the Pinus tabulaeformis f.shekannesis in Ziwuling Loess Plateau,soil coring was used to investigate the vertical distribution of the fine root(<2 mm) of Pinus tabulaeformis f.shekannesis and the soil physical characters in Ziwuling Loess Plateau.The study revealed that the fine root biomass,fine root length density,fine root surface area and specific root length all concentrated on the 0-20 cm soil layer,and then all of them decreased with the ...
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