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FOREST RESOURCES WANAGEMENT ›› 2022, Vol. 0 ›› Issue (2): 135-140.doi: 10.13466/j.cnki.lyzygl.2022.02.018

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Soil Physicochemical Properties of Betula platyphylla Secondary Forest Under Different Disturbances in Daxing' anling

SA Rula(), HU Richa, YU Xiaoyu, WANG Zirui   

  1. Forestry College,Inner Mongolia Agricultural University,Hohhot 010019,China
  • Received:2022-03-08 Revised:2022-04-14 Online:2022-04-28 Published:2022-06-13

Abstract:

Soil physical and chemical properties directly affect forest growth and forest ecosystem health and stability. This research took Betula platyphyllain northern Daxing'anling with forest fire disturbance,the cutting interference and artificial stripe interference as the research object,selected a total of 11 indexes of soil physical and chemical properties,such as pH,soil organic matter,etc,used the subjective and objective comprehensive assignment method combining analytic hierarchy process (ahp) and entropy weight methodto determine the synthesis weights,and at the same time,by applying the method of grey correlation,the soil fertility status was evaluated by calculating the comprehensive indexes of each soil. The results showed that soil available P and soil organic matter accounted for 0.233 and 0.165,respectively,which indicated that soil available P and soil organic matter were important factors affecting soil fertility. Soil values from big to small were in the order of 0.88 (artificial stripe interference),0.74 (the cutting interference),0.65 (interference) on fire,showing the birch forest soil fertility was the best in artificial stripe interference,the birch forest soil fertility was the worst in fire interference,showing that reasonable moderate artificial measureswouldbe conducive to the birch forest soil fertility improvement. The results will provide a scientific basis for the formulation of effective measures to improve the ecological function of Betula platyphylla secondary forest in Daxing'anling.

Key words: Daxing'anling, Betula platyphylla secondary forest, different disturbances, soil fertility

CLC Number: