The total and exchangeable Ca in soil and the total Ca in plant increased with the plant succession from arbor trees, herbage-shrubs, shrubs-herbage to sparse shrub-herbage.

• 植物、土壤总钙及土壤交换态钙含量，都随着次生林、草灌、灌草、稀疏灌草的演替有增加的趋势。