Coupling of remote sensing, field campaign, and mechanistic and empirical modeling to monitor spatiotemporal carbon dynamics of a Mediterranean watershed in a changing regional climate

Environmental Monitoring and Assessment
Suha BerberogluFatih Evrendilek

Abstract

The aim of this study was to simulate impacts of regional climate change in the 2070s on carbon (C) cycle of a Mediterranean watershed combining field measurements, Envisat MERIS and IKONOS data, and the Carnegie Ames Stanford Approach model. Simulation results indicated that the present total C sink status (1.36 Mt C year(-1)) of Mediterranean evergreen needleleaf forest, grassland and cropland ecosystems is expected to weaken by 7.6% in response to the climate change in the 2070s (Mt=10(12) g). This decreasing trend was mirrored in soil respiration (R H), aboveground and belowground net primary production (NPP), NEP, and net biome production (NBP). The decrease in NEP in the 2070s was the highest (21.9%) for mixed forest where the smallest present C sink of 0.03 Mt C year(-1) was estimated. The average present net ecosystem production (NEP) values were estimated at 110±15, 75±19, and 41±25 g C m(-2) years(-1) in forest, grassland, and cropland, respectively, with a watershed-scale mean of 95±30 g C m(-2) years(-1). The largest present C sink was in grassland, with a total C pool of 0.55 Mt C year(-1), through its greater spatial extent.

References

Jun 3, 2006·Environmental Monitoring and Assessment·Fatih EvrendilekErhan Yilmaz
Aug 30, 2006·Ecological Applications : a Publication of the Ecological Society of America·Sönke ZaehleBenjamin Smith
Jul 10, 2007·Proceedings of the National Academy of Sciences of the United States of America·Helmut HaberlMarina Fischer-Kowalski
Sep 18, 2010·Environmental Monitoring and Assessment·Divya PandeyJai Shanker Pandey
Jan 26, 2013·Ecology Letters·Matthias PeichlMatthew Saunders
Dec 18, 2014·Environmental Monitoring and Assessment·Sebastian SchnellChristoph Kleinn

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Citations

Mar 11, 2017·Environmental Science and Pollution Research International·Ting LiJingya Liu

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