Study on the Effect of Adding Substrates on the Quantitative Characteristics and Germination Dynamic of Soil Seed Banks

Abstract:

In order to study the effect of adding substrates on soil seed banks (SSBs) germination characteristics, vermiculite (inorganic substrates), rice husk char (organic substrates) and their mixed substrates were selected to be added to SSBs by different ratios. After the germination test, the results show that SSBs in different treatments present different germination characteristics. In this test, the nutrition of organic substrates is more important for promoting the rate of seeding emergence, while the inorganic substrates is better for greater density and seeding community diversity. T1(rice husk char: soil=1:9), T5(rice husk char: vermiculite: soil=2:1:7) and T4(vermiculite: soil=3:7) correspond the best promoting effect on these three aspects. Thus the substrates selection should be determined according to specific objectives during vegetation restoration. Mixed substrates combine the advantages of organic and inorganic substrates, which leads to comparative advantages in all aspects.

• Periodical: Advanced Materials Research (Volumes 1092-1093)
• Pages: 1254-1258
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1092-1093.1254
• Online since: March 2015
• Authors: Lin Wei Han*, Meng Xuan He, Gang Wu
• Keywords: Diversity Indexes, Germination Characteristics, Soil Seed Banks, Substrates

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