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Coupling land-use change and hydrologic models for quantification of catchment ecosystem services

Urheber*innen

Yalew,  S. G.
External Organizations;

Pilz,  T.
External Organizations;

Schweitzer,  C.
External Organizations;

/persons/resource/Stefan.Liersch

Liersch,  Stefan
Potsdam Institute for Climate Impact Research;

Kwast,  J. van der
External Organizations;

Griensven,  A. van
External Organizations;

Mul,  M. L.
External Organizations;

Dickens,  C.
External Organizations;

Zaag,  P. van der
External Organizations;

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Zitation

Yalew, S. G., Pilz, T., Schweitzer, C., Liersch, S., Kwast, J. v. d., Griensven, A. v., Mul, M. L., Dickens, C., Zaag, P. v. d. (2018): Coupling land-use change and hydrologic models for quantification of catchment ecosystem services. - Environmental Modelling and Software, 109, 315-328.
https://doi.org/10.1016/j.envsoft.2018.08.029


Zitierlink: https://publications.pik-potsdam.de/pubman/item/item_22608
Zusammenfassung
Representation of land-use and hydrologic interactions in respective models has traditionally been problematic. The use of static land-use in most hydrologic models or that of the use of simple hydrologic proxies in land-use change models call for more integrated approaches. The objective of this study is to assess whether dynamic feedback between land-use change and hydrology can (1) improve model performances, and/or (2) produce a more realistic quantification of ecosystem services. To test this, we coupled a land-use change model and a hydrologic mode. First, the land-use change and the hydrologic models were separately developed and calibrated. Then, the two models were dynamically coupled to exchange data at yearly time-steps. The approach is applied to a catchment in South Africa. Performance of coupled models when compared to the uncoupled models were marginal, but the coupled models excelled at the quantification of catchment ecosystem services more robustly.