Dissertation > Agricultural Sciences > Forestry > Forestry basic science > Forest Biology > Forest Ecology

The Seasonal Variation Relevant Factors of Water Conservation Capacity for Liaodong Natural Secondary

Author HaoZuoZuo
Tutor WuXiangYun;ZhuJiaoJun
School Liaoning Technical University
Course Soil and Water Conservation and Desertification Combating
Keywords Liaodong mountainous areas natural secondary forest water conservation capacity associated factor seasonal variation
CLC S718.5
Type Master's thesis
Year 2011
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In this paper, based on the theory of forest ecology, hydrology, natural secondary forest for the mountainous areas of eastern, compares and analyzes the growing season and different forest types within the same forest-related factors affect the water conservation capacity of canopy interception, litter and soil water holding changes in water law. The results show that:1. Liaodong mountainous natural secondary forest in the growing season, changes in canopy interception ranges 7.59-34.32 mm, canopy interception rate of 17.62% -44.65%; storing the amount of litter changes the effective ranges 16.80-35.08 t/hm2; Soil water holding capacity was 72.47-137.49 t/hm2.2. The forest canopy interception and stemflow and rainfall, and storing the amount of litter and effective volume showed a significant positive correlation; Juglans mandshurica and Fraxinus litter Willows storing capacity and the maximum effective rate and soil water holding effectively storing volume and moisture content showed significant positive correlation, while the flower song Liulin no significant correlation between the two; rainfall 43.10-85.00 mm, the interception rate of the forest canopy and rainfall were significantly correlated, while the rainfall in the 35.00-38.60 mm, the two are significantly negative.3. Interception, canopy interception rate, litter the natural moisture content, storing the amount of litter and the effective volume of soil effectively storing there was significant seasonal variation.By studying the impact of water conservation capacity of different forest seasonal dynamics of the relevant factors, mountainous areas of eastern for the future rational management and the transformation of secondary forests provide a theoretical basis.

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