Abstract


NEW STRATEGY FOR IMPROVEMENT IN MISSING ROLE OF FRESHWATER ON GLOBAL BIOGEOCHEMICAL CYCLE

Recent research shows inland water may play some role in continental carbon cycling though its contribution has remained uncertain due to a shortage of data (Battin et al., 2009). The author has developed process-based National Integrated Catchment-based Eco-hydrology (NICE) model (Nakayama, 2008a-b, 2010, 2011a-b, 2012a-c, 2013; Nakayama and Fujita, 2010; Nakayama and Hashimoto, 2011; Nakayama and Shankman, 2013a-b; Nakayama and Watanabe, 2004, 2006, 2008a-b; Nakayama et al., 2006, 2007, 2010, 2012), which incorporates surface-groundwater interactions, includes up- and down-scaling between various scales, and can simulate feedback between hydrologic-geomorphic-ecological processes. Here, NICE was applied to various catchments and expanded to evaluate global eco-hydrological process. The simulated result agreed reasonably with that in the previous research (Fan et al., 2013) and extended to clarify dynamic eco-hydrological process. NICE was further developed to incorporate biogeochemical cycle including reaction between inorganic and organic carbons in terrestrial and aquatic ecosystems. This advanced eco-hydrologic and biogeochemical coupling model would play important role on identification of greenhouse gas balance of biosphere and boundless biogeochemical cycle along terrestrial-aquatic continuum (Cole et al., 2007; Battin et al., 2009).

Authors

Nakayama, T., National Institute for Environmental Studies, Japan, nakat@nies.go.jp

Maksyutov, S., National Institute for Environmental Studies, Japan

Details

Oral presentation

Session #:049
Date: 2/24/2015
Time: 11:15
Location: Seminario 6-7 (Floor 1)

Presentation is given by student: No