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The Soil Of Forests Respiration Integrated Modeling In Jinggangshan Nature Reserve

Posted on:2013-07-29Degree:MasterType:Thesis
Country:ChinaCandidate:Q T JiaFull Text:PDF
GTID:2233330395953818Subject:Cartography and Geographic Information System
Abstract/Summary:PDF Full Text Request
As the Soil carbon cycle effect has been playing an important role in the research on globalclimate change,the Soil Respiration getting more and more important. which is the Researchfocus as the Carbon into the atmosphere is the main path。This paper uses JinggangshanNature Reserve in Jiangxi Province as the study area,Combined with the" GIS" technology,through field investigation and data collection,Simulation of Jinggangshan natural reserve ofsoil respiration process,Analysis of the main influence factors on soil respiration rate。Deduced from Jinggangshan National Nature Reserve of soil respiration model。The resultsshow that:Each type of forest soil respiration during the day is more active, and the night is very smallfluctuation. The peak is generally appear in the morning10am to14pm. A day of soilrespiration intensity curve is basically follow the inverted U type.Various forest types was proposed based on heat and water factors of soil respirationmodels, models generally show September8of soil respiration and heat factor correlationswere modest, but the soil water content and relatively close relationship.Analysis of the soil carbon and nitrogen content and soil respiration, soil respiration and thefirst layer is found (0-10cm) soil carbon content closely related, with various soil nitrogencontent and C/N ratio has little relationship.Coupling out the Jinggangshan soil respiration model which based on soil moisture, soiltemperature, soil total carbon factor, found that when increased soil carbon content asinfluence factors, the model precision was obtained very big rise...
Keywords/Search Tags:Soil respiration, forest type, model, soil total carbon, Jinggangshan
PDF Full Text Request
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