Fallen tree caused by an avalanche in Japanese Southern Alps, 2017.Japanese deer gathering on a south-facing slope where bamboos, a valuable winter food source, are distributed.Photo upper right. Camping at lodge Shirabe, in the Nishikoma experiment forest, Shinshu univ.. A nice 90 minutes trekking is required to access to our comfortable lodge.20Environmental Symbiosis Science DivisionEnvironmental Symbiosis Science DivisionLaboratory for Watershed ConservationForest Ecology and EnvironmentTaijiroFUKUYAMAAssistantProfessor,Ph.D.Hajime KOBAYASHIAssociate Professor, Ph.D.IntheForestEnvironmentandEcologylab.weaddressvariousquestionslyingonforestecosystem,particularlyfocusingonissuesofimportancetothesocietyandenvironment.Recentthemeswearetacklingareasfollows:?Interactiveeffectsofwaterandnitrogenoncarbondioxideabsorptioninartificialconiferousforests?Prospectsofforestdynamicsandcarbondioxideaccumulationinsubalpineconiferforestunderclimatechange?VerifyingtheeffectofthinningoncarbondioxidebudgetonartificialconiferousforestsResearch Keywords;?Artificial coniferous forests?Carbon absorption?Photosynthesis?Forest management?Timber production?Forest dynamicsKeywords:?Fallen trees and driftwood caused by avalanches?Predicting source area and magnitude of sediment and driftwood in mountainous areas?Deer browsing pressureLarge-scale disturbances such as heavy rain, snow, and earthquakes, as well as the resulting landslides, are natural phenomena, but when they come into contact with human society, they become disasters. In order to mitigate the damage to human lives and society, it is important to understand the mechanisms of these phenomena and to know the hazardous locations and conditions. Therefore, we are conducting research on the mechanisms of sediment production in mountain forest watersheds caused by heavy rainfall, snow, earthquakes, freezing and thawing, and deer browsing pressure.Photos. Right column upper: permanent plot in a secondary sub alpine conifer forest in the Nishikoma experiment forest, Shinshu univ.. Right column lower: measuring photosynthesis and transpiration rates of larix trees above 20m high from the ground. Middle column upper: measuring water potential of hinoki cypress shoots in the Terasawayama experiment forest, Shinshu univ.. Middle column lower: A huge rotten beech tree standing beside the trail to lodge Shirabe, in the Nishikoma experiment forest. Left column: cutting sixty-year-old hinoki cypress tree using chain saw for laboratory work.Photo left. Installing open top chambers above the timber line (Alt. 2600m) at mount Shogigashira, located in the Nishikoma experiment forest, Shinshu univ. Other research topics of interest include the following.1. Driftwood production and sediment production in the subalpine zone of the Southern Alps, where avalanches have disrupted forests2. the effects of deer on vegetation decline and topsoil movement on mountain slopes in areas with high densities of Japanese deer.3. Quantitative evaluation of overuse of catchment areas and evaluation of the effects of sediment runoff countermeasuresABCDABC
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