| Using artificial biomass skinning method for different site vegetation restoration. In luliang loess area soil slope loess area highway slope in two different difficult site as an example, using the set trial site investigation and indoor analysis the method of combining artificial biomass research and planting 3 a,2 a crust of vegetation recovery and community stability determination. Results show that the artificial biomass plant fresh weight above ground biomass of crust area, the largest up to 2.29 t/hm2, ck and natural slope, respectively 2.8 times and 6.6 times. All the indexes for artificial biological crust area is best,26 species richness, respectively, Shannon-weaver diversity index, Simpson, diversity index is 0.91,2.81 Pielow evenness index 0.94; Blank control area, species richness, respectively 10, Shannon-weaver diversity index, Simpson, diversity index is 0.85,2.07 Pielow evenness index 0.90; And worst in a natural slope, its each index respectively,8 species richness, Shannon-weaver diversity index, Simpson, diversity index is 0.80,1.84 Pielow evenness index was 0.88.The growth condition of artificial biological crust plants (plant emergence number, coverage, Simpson, diversity index,Shannon wiener diversity index and Pielou evenness index) and biomass were greater than the natural slope, so the artificial biomass crust formula can be used in the vegetation restoration of difficult site, and can obtain ideal recovery effect plant growth condition. Artificial biological crust can provide necessary conditions for seed germination and growth, and can activate soil seed Banks, in a relatively short time internal form higher vegetation in the study area. Through two experimental area after 3 a and 2 a continued after the investigation and study, on the stability of biological crust vegetation restoration community, determine the artificial biomass crust stability of vegetation restoration, gradually to develop in the direction of progress in succession. |
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