Chin J Plan Ecolo ›› 1997, Vol. 21 ›› Issue (6): 512-520.

• Research Articles • Previous Articles     Next Articles

Studies on the Biomass of Typical Scrubland and Their Regeneration Capacity After Cutting

He Jinsheng, Wang Qibing and Hu Dong   

  • Published:1997-06-10
  • Contact: Huang Zhenying

Abstract: Shrubland is the typical degraded ecosystems in the Three Gorges Region. In this paper, the biomasses of 4 types of shrublands, such as Myrsine africana,Loropetalum chinense,Vitex: negundo and Cotinus coggygria,and their responses to cutting were investigated with harvest method and cutting experiment. The results show that the biomass of these 4 types of shrublands were 22.5±5.1,21.0±3.7,16.9±7.5 and 13.6±2.4t·hm-2, respectively, being equal to about 10%~25% of that of the typical natural evergreen broadleaved forests (30 years). The shrub layer accounted for 90% of the community in terms of the total or the underground or the above-ground biomass. In the biomass species sequence, the top 5 species amounted to over 84% of the total biomass. The shrublands of the same type were similar in biomass between temperate and subtropical area. That Cotinus coggygria shrub and Loropetalum chinense shrub recovered to 42.7% and 62.0% of aboveground biomass of the control due to one year restoration after cutting, suggests their high growth rate and recovery potential.