Regional coupled C-N-H2O cycle processes and associated driving mechanisms

作者：Yang GAO,Gui-Rui YU

摘要：From a molecular level to an ecosystem scale,different coupling mechanisms take place during coupled carbonnitrogen-water(C-N-H2O)cycle,of which essential are water flux and related biogeochemical processes through physicochemical reactions associated with terrestrial and aquatic ecosystems.Meanwhile,regional coupled C-N-H2O cycle will subsequently impact regional gross primary productivity(GPP)and C and N exchanges during air-water interactions that occur downstream of watersheds.This study aimed to first synthetically analyze the regional dynamics of C,N and H2O cycles in ecosystems and determine their interactional relationships;second,to specify regional C-N-H2O coupled relationships of ecosystems and their theoretical ecological principles;third,to classify coupled regional response and adaptation of the C-N-H2O cycle to climatic and environmental changes under anthropogenic activities,providing a theoretical basis to fully understand and make adjustments to interactional C,N and H2O cycling relationships at different ecosystem scales and under associated coupling processes.

发文机构：Key Laboratory of Ecosystem Network Observation and Modeling College of Resources and Environment

关键词：RegionalC-N-H2OcycleCoupledrelationshipCcycleNcycleWatercycleDrivingmechanisms

分类号： P59[天文地球—地球化学]