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The research item of this study includes soil chemical properties, vegetation recovery and vegetation analysis after wildfire, which results are summarized as follows:1.A large amount of nutrients were released to site after fire and the soil available phosphorus,exchangeable cations and pH value were increased. But, the following soil erosion, recovery of vegetation or soil leaching by rain will cause a tendency that the soil pH value and soil nutrient were decreased at next year. 2.Whithin the frequency of 10%∼60%, 28 kinds of plants are included, Sapium discolor is one of them. Except Lindera strychnifolia and Dianella ensifolia, Viburnum luzonicum and Lespedeza bicolor, Rubus trianthus and Gordonia axillaris, there is no correlation among these plants, it shows that these plants occur randomly in fire slash.3.The diversity of the plant communities was investigated at burned area and control area of Mt. Tong-Mao, the results shows that the general mean index of diversity in control area is larger than burned area. The analysis of age distribution shows that the most plant species at fire area are intolerant trees, and they show the regeneration abilities at early succession stage. At control area, the intolerant trees shows worse regeneration abilities and its age distribution plot display in Bell-shaped pattern, on the contrary, the tolerant trees display in replaced J-shape distribution.4.In early times, graminoids take dominant status in fire burned. This phenomenon takes an important role in the soil and water conservation after fire. However, the over- dominance of this plant will cause the regeneration difficults and raise the probability of fire next time.5.Taiwan red pine can be regarded as one of the fire-adapted species. However, the formation of forest after fire depends on the intensity of fire, season, area, frequency and other biotic factors.
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