Interaction effects of the main drivers of global climate change on spatiotemporal dynamics of high altitude ecosystem behaviors: process-based modeling

Environmental Monitoring and Assessment
Kadir YildizFatih Evrendilek


Soil organic carbon and nitrogen (SOC-N) dynamics are indicative of the human-induced disturbances of the terrestrial ecosystems the quantification of which provides insights into interactions among drivers, pressures, states, impacts, and responses in a changing environment. In this study, a process-based model was developed to simulate the eight monthly outputs of net primary productivity (NPP), SOC-N pools, soil C:N ratio, soil respiration, total N emission, and sediment C-N transport effluxes for cropland, grassland, and forest on a hectare basis. The interaction effect of the climate change drivers of aridity, CO2 fertilization, land-use and land-cover change, and best management practices was simulated on high altitude ecosystems from 2018 to 2070. The best management practices were developed into a spatiotemporally composite index based on SOC-N stock saturation, 4/1000 initiative, and RUCLE-C factor. Our model predictions differed from the remotely sensed data in the range of - 64% (underestimation) for the cropland NPP to 142% (overestimation) for the grassland SOC pool as well as from the global mean values in the range of - 97% for the sediment C and N effluxes to 60% for the total N emission from the grassland. The ...Continue Reading


Mar 7, 2014·Global Change Biology·Jessica G ErnakovichMatthew D Wallenstein
Jul 11, 2014·The Science of the Total Environment·Xiong XiongNicolas B Comerford
Apr 29, 2015·Global Change Biology·Sharon M O'RourkeAlex B McBratney
Mar 29, 2019·Nature·Marcell K PetersIngolf Steffan-Dewenter
May 17, 2019·Nature Communications·Elke StehfestKeith Wiebe
Nov 2, 2019·Global Change Biology·Shilong PiaoStephen Sitch

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