Land Use Change and the Carbon Budget in the Brazilian Cerrado

2010 ◽  
pp. 367-381 ◽  
Author(s):  
Mercedes Bustamante ◽  
L Ferreira
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Carbon Budget ◽  
Brazilian Cerrado

Effects of land-use change on chemical attributes of a Ferralsol in Brazilian Cerrado

CATENA ◽  
2019 ◽  
Vol 177 ◽  
pp. 180-188 ◽  
Author(s):  
Fabiane Pereira Machado Dias ◽  
Rodrigo Hübner ◽  
Flávia de Jesus Nunes ◽  
Wilson Mozena Leandro ◽  
Francisco Alisson da Silva Xavier
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Brazilian Cerrado ◽  
Chemical Attributes ◽  
Effects Of Land Use

Land use change alters the radiocarbon age and composition of soil and water-soluble organic matter in the Brazilian Cerrado

Geoderma ◽  
2019 ◽  
Vol 345 ◽  
pp. 38-50 ◽  
Author(s):  
Jason N. James ◽  
Cole D. Gross ◽  
Pranjal Dwivedi ◽  
Tyler Myers ◽  
Fernanda Santos ◽  
...  
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Land Use Change ◽  
Water Soluble ◽  
Soluble Organic Matter ◽  
Brazilian Cerrado ◽  
Radiocarbon Age ◽  
Soil And Water

Agricultural land use change and associated driving forces over the past 180 years in two municipalities of the Brazilian Cerrado

GeoJournal ◽  
2018 ◽  
Vol 84 (3) ◽  
pp. 555-570 ◽  
Author(s):  
Murilo Rodrigues de Arruda ◽  
Maja Slingerland ◽  
José Zilton Lopes Santos ◽  
Ken E. Giller
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Agricultural Land ◽  
Driving Forces ◽  
Agricultural Land Use ◽  
Brazilian Cerrado ◽  
The Past

scholarly journals Global Carbon Budget 2019

2019 ◽  
Vol 11 (4) ◽  
pp. 1783-1838 ◽  
Author(s):  
Pierre Friedlingstein ◽  
Matthew W. Jones ◽  
Michael O'Sullivan ◽  
Robbie M. Andrew ◽  
Judith Hauck ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Carbon Cycle ◽  
Co2 Emissions ◽  
Carbon Budget ◽  
Co2 Concentration ◽  
Data Sets ◽  
Global Carbon Budget ◽  
The Mean ◽  
Global Carbon

Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, and terrestrial biosphere – the “global carbon budget” – is important to better understand the global carbon cycle, support the development of climate policies, and project future climate change. Here we describe data sets and methodology to quantify the five major components of the global carbon budget and their uncertainties. Fossil CO2 emissions (EFF) are based on energy statistics and cement production data, while emissions from land use change (ELUC), mainly deforestation, are based on land use and land use change data and bookkeeping models. Atmospheric CO2 concentration is measured directly and its growth rate (GATM) is computed from the annual changes in concentration. The ocean CO2 sink (SOCEAN) and terrestrial CO2 sink (SLAND) are estimated with global process models constrained by observations. The resulting carbon budget imbalance (BIM), the difference between the estimated total emissions and the estimated changes in the atmosphere, ocean, and terrestrial biosphere, is a measure of imperfect data and understanding of the contemporary carbon cycle. All uncertainties are reported as ±1σ. For the last decade available (2009–2018), EFF was 9.5±0.5 GtC yr−1, ELUC 1.5±0.7 GtC yr−1, GATM 4.9±0.02 GtC yr−1 (2.3±0.01 ppm yr−1), SOCEAN 2.5±0.6 GtC yr−1, and SLAND 3.2±0.6 GtC yr−1, with a budget imbalance BIM of 0.4 GtC yr−1 indicating overestimated emissions and/or underestimated sinks. For the year 2018 alone, the growth in EFF was about 2.1 % and fossil emissions increased to 10.0±0.5 GtC yr−1, reaching 10 GtC yr−1 for the first time in history, ELUC was 1.5±0.7 GtC yr−1, for total anthropogenic CO2 emissions of 11.5±0.9 GtC yr−1 (42.5±3.3 GtCO2). Also for 2018, GATM was 5.1±0.2 GtC yr−1 (2.4±0.1 ppm yr−1), SOCEAN was 2.6±0.6 GtC yr−1, and SLAND was 3.5±0.7 GtC yr−1, with a BIM of 0.3 GtC. The global atmospheric CO2 concentration reached 407.38±0.1 ppm averaged over 2018. For 2019, preliminary data for the first 6–10 months indicate a reduced growth in EFF of +0.6 % (range of −0.2 % to 1.5 %) based on national emissions projections for China, the USA, the EU, and India and projections of gross domestic product corrected for recent changes in the carbon intensity of the economy for the rest of the world. Overall, the mean and trend in the five components of the global carbon budget are consistently estimated over the period 1959–2018, but discrepancies of up to 1 GtC yr−1 persist for the representation of semi-decadal variability in CO2 fluxes. A detailed comparison among individual estimates and the introduction of a broad range of observations shows (1) no consensus in the mean and trend in land use change emissions over the last decade, (2) a persistent low agreement between the different methods on the magnitude of the land CO2 flux in the northern extra-tropics, and (3) an apparent underestimation of the CO2 variability by ocean models outside the tropics. This living data update documents changes in the methods and data sets used in this new global carbon budget and the progress in understanding of the global carbon cycle compared with previous publications of this data set (Le Quéré et al., 2018a, b, 2016, 2015a, b, 2014, 2013). The data generated by this work are available at https://doi.org/10.18160/gcp-2019 (Friedlingstein et al., 2019).

Carbon budget of Finnish croplands — Effects of land use change from natural forest to cropland

2014 ◽  
Vol 2-3 ◽  
pp. 1-8 ◽  
Author(s):  
Anu Akujärvi ◽  
Jaakko Heikkinen ◽  
Taru Palosuo ◽  
Jari Liski
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Carbon Budget ◽  
Natural Forest ◽  
Effects Of Land Use

scholarly journals Climate and land-use change refugia for Brazilian Cerrado birds

2020 ◽  
Vol 18 (2) ◽  
pp. 109-115
Author(s):  
Fábio Júlio Alves Borges ◽  
Rafael Loyola
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Brazilian Cerrado

scholarly journals Identifying hydrological responses of micro-catchments under contrasting land use in the Brazilian Cerrado

2015 ◽  
Vol 12 (9) ◽  
pp. 9915-9975 ◽  
Author(s):  
R. L. B. Nobrega ◽  
A. C. Guzha ◽  
G. N. Torres ◽  
K. Kovacs ◽  
G. Lamparter ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Agricultural Land ◽  
Field Measurements ◽  
Brazilian Cerrado ◽  
Water Balance Components ◽  
Pasture Grass ◽  
Cerrado Biome ◽  
Cerrado Vegetation ◽  
Gallery Forests

Abstract. In recent decades, the Brazilian Cerrado biome has been affected by intense land-use change, particularly the conversion of natural forest to agricultural land. Understanding the environmental impacts of this land-use change on landscape hydrological dynamics is one of the main challenges in the Amazon agricultural frontier, where part of the Brazilian Cerrado biome is located and where most of the deforestation has occurred. This study uses empirical data from field measurements to characterize controls on hydrological processes from three first-order micro-catchments < 1 km2 in the Cerrado biome. These micro-catchments were selected on the basis of predominant land use including native cerrado vegetation, pasture grass with cattle ranching, and cash crop land. We continuously monitored precipitation, streamflow, soil moisture, and meteorological variables from October 2012 to September 2014. Additionally, we determined the physical and hydraulic properties of the soils, and conducted topographic surveys. We used these data to quantify the water balance components of the study catchments and to relate these water fluxes to land use, catchment physiographic parameters, and soil hydrophysical properties. The results of this study show that runoff coefficients were 0.27, 0.40, and 0.16 for the cerrado, pasture, and cropland catchments, respectively. Baseflow is shown to play a significant role in streamflow generation in the three study catchments, with baseflow index values of more than 0.95. The results also show that evapotranspiration was highest in the cerrado (986 mm yr−1) compared to the cropland (828 mm yr−1) and the pasture (532 mm yr−1). However, discharges in the cropland catchment were unexpectedly lower than that of the cerrado catchment. The normalized discharge was 55 % higher and 57 % lower in the pasture and cropland catchments, respectively, compared with the cerrado catchment. We attribute this finding to the differences in soil type and topographic characteristics, and low-till farming techniques in the cropland catchment, additionally to the buffering effect of the gallery forests in these catchments. Although the results of this study provide a useful assessment of catchment rainfall–runoff controls in the Brazilian Cerrado landscape, further research is required to include quantification of the influence of the gallery forests on both hydrological and hydrochemical fluxes, which are important for watershed management and ecosystem services provisioning.

scholarly journals Implications of land use change on the national terrestrial carbon budget of Georgia

2010 ◽  
Vol 5 (1) ◽  
Author(s):  
Pontus Olofsson ◽  
Paata Torchinava ◽  
Curtis E Woodcock ◽  
Alessandro Baccini ◽  
Richard A Houghton ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Carbon Budget ◽  
Terrestrial Carbon

The U.S. Carbon Budget: Contributions from Land-Use Change

Science ◽  
1999 ◽  
Vol 285 (5427) ◽  
pp. 574-578 ◽  
Author(s):  
R. A. Houghton
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Carbon Budget ◽  
The U.S
Sign in / Sign up

Export Citation Format

Share Document