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Elected three locatss at west and south in Taiwan. For studing adaptability of dominate plant in exposed aera. Items studied include revegetation investigated. Seed germination. Soil phsical and chemical properties. Investigated roots of dominate plants, Results obtained are summarized as follows: 1.The pioneer plants of three locals are investigated. The main of dominate plants are Leucaena glauce, Mis-- canthus floridulus, Lantana camara L., Saccharum spon- taneum L., Acacia confusa Merr. 2.Cause of provenance, Vigor of parent trees and age of mother trees, The germination rates of seed are not good. But througth seed stimulation and scarification treatment, The germination Rates of Saccharum sponta- neum Linn and Leucaena glauca are better than others. 3.The analysis of soil phsical results obtained, The local① is silty clay, The local②is loam, The local③ is sandy clay. 4.Leucaena glauca belongs deep- root and big-root-type in local①③,The development of roots are fined well. The Saccharum Spontaneum Linn. and Miscanthus flor-- idulus belongs hair-root and shallow-root-type. The soil properities analyses not good, and can't ease absorb nutriment and water, The same reason, growth of Lantana camara L. is limited in local①②.
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