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Hydrology and Earth System Sciences (HESS)
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A global analysis of the impact of drought on net primary productivity

Authors: Tiexi Chen; G. R. van der Werf; R.A.M. de Jeu; Guojie Wang; A. J. Dolman;

A global analysis of the impact of drought on net primary productivity

Abstract

Abstract. We investigated the impact of drought on interannual variability of NPP from 1997 to 2009 using the standardized precipitation evapotranspiration index (SPEI) drought index and satellite-derived vegetation greenness converted net primary productivity (NPP). We found that SPEI and NPP were coupled and in phase on a global scale. We then used the Köppen climate classification to study the SPEI-NPP relations regionally and found that while NPP and SPEI were positively related in arid and in seasonal dry regions, the opposite occurs in most boreal regions. However, high intensity drought events, such as the 2003 drought in Europe, will lead to a reduction of NPP despite NPP being usually limited by temperature and radiation here. Our findings suggest that the strong positive relation between global average moisture availability and NPP is a composite of the positive relation across dry regions and the coherent NPP decline during and after intensive drought event in humid regions. The spatial patterns of drought impact on NPP could thus be categorized by climate classification, which implies that the predication of climate zone evaluation will contribute to the quantification of the future terrestrial carbon cycle.

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Subjects by Vocabulary

Library of Congress Subject Headings: lcsh:Technology lcsh:TD1-1066 lcsh:Environmental technology. Sanitary engineering lcsh:Environmental sciences lcsh:GE1-350 lcsh:T lcsh:Geography. Anthropology. Recreation lcsh:G

Microsoft Academic Graph classification: Precipitation High intensity Primary production Arid Boreal Climatology Environmental science

Keywords

/dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitation, SDG 6 - Clean Water and Sanitation

45 references, page 1 of 5

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Ciais, P., Reichstein, M., Viovy, N., Granier, A., Ogee, J., Allard, V., Aubinet, M., Buchmann, N., Bernhofer, C., Carrara, A., Chevallier, F., De Noblet, N., Friend, A. D., Friedlingstein, P., Grunwald, T., Heinesch, B., Keronen, P., Knohl, A., Krinner, G., Loustau, D., Manca, G., Matteucci, G., Miglietta, F., Ourcival, J. M., Papale, D., Pilegaard, K., Rambal, S., Seufert, G., Soussana, J. F., Sanz, M. J., Schulze, E. D., Vesala, T., and Valentini, R.: Europe-wide reduction in primary productivity caused by the heat and drought in 2003, Nature, 437, 529-533, doi:10.1038/nature03972, 2005.

Cook, E. R., Woodhouse, C. A., Eakin, C. M., Meko, D. M., and Stahle, D. W.: Long-term aridity changes in the western United States, Science, 306, 1015-1018, doi:10.1126/science.1102586, 2004.

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Dolman, A. J. and de Jeu, R. A. M.: Evaporation in focus, Nat. Geosci., 3, 296-296, doi:10.1038/ngeo849, 2010.

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    influence
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
100
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Top 10%
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EC| CARBO-EXTREME
Project
CARBO-EXTREME
The terrestrial Carbon cycle under Climate Variability and Extremes – a Pan-European synthesis
  • Funder: European Commission (EC)
  • Project Code: 226701
  • Funding stream: FP7 | SP1 | ENV
Validated by funder
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EC| CLIMAFRICA
Project
CLIMAFRICA
Climate change predictions in Sub-Saharan Africa: impacts and adaptations
  • Funder: European Commission (EC)
  • Project Code: 244240
  • Funding stream: FP7 | SP1 | ENV
Validated by funder | iis
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