Laboratory for Forest, Soil and Water Conservation Hiroshi ONO Assistant Professor, Ph.D. Research Keywords; Erosion control, Forest hydrology, Physical properties of forest soil, Soil aggregate of forest, Soil and water Conservation The Laboratory for Forest , Soil and Water Conservation provides educational and research programs related to the public use of forests, prevention of natural disasters, water conservation, environmental conservation, and recreation. Forest, soil and water Conservation of mountainous area A B C D A B C Monitoring of runoff from mountainous watersheds The difference of structure of forest soil (left: single grain structure, right: crumb structure) The role of mountainous forests and soil in the hydrological cycle and water conservation The effect of aggregate development on physical properties of forest soil 28 Laboratory of Silviculture Tetsuoh SHIROTA Assistant Professor, Ph.D. Tree architecture, Life history of woody plants, Population ecology, Biodiversity, Natural regeneration To get the forest ecosystem services sustainably in the changing world, the ecological and reasonable forest management is required. To realize our object, we try to understand the behavior of woody plants, the dynamics of forest ecosystems and their response to the human activity. Because forest ecosystems react sluggishly to natural disturbances and human impacts, and their responses are different depending on field characteristics, we adopt three strategy in our laboratory: (1) long term ecosystem monitoring, (2) accumulation and analysis the practical field data, (3) comparison the field data with the theoretical models. Life History and its strategy of Woody Plants: Woody plants represent various shape and size. However, we can find the rules such as the pipe model, the elasticity model and so on. We try to integrate them under the concept of the metabolic ecology. A B C D A B C We have monitored the vegetation structure in the thinned Japanese cypress forest for 20 years. Vertical transition pattern of vegetation from cool temperature zone to one of subalpine zone response to the global warming. Vegetation Structure and Dynamics: Different plant species and its population is a unit of the vegetation. The competitive and cooperative interactions among resource and environment will result their relationships. Silviculture and Forest Management: The objects of silviculture has been changed in the history. We try to act the conservation biodiversity in artificial forest with low cost. We also try to success the recruitment of trees in disturbed or sasa-covered land. Environmental Symbiosis Science Division Environmental Symbiosis Science Division
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