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

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.

Bibliographic Details

Main Authors:	Yalew, S.G., Pilz, T., Schweitzer, C., Liersch, S., Kwast, J. van der, Griensven, Ann van, Mul, Marloes L., Dickens, Chris, Zaag, P. van der
Format:	Journal Article biblioteca
Language:	English
Published:	Elsevier 2018-11
Subjects:	ecosystem services, catchment areas, land use, models, calibration, environmental assessment, couplings, stream flow, biomass, grasslands, grazing lands, environmental engineering, software,
Online Access:	https://hdl.handle.net/10568/97174 https://doi.org/10.1016/j.envsoft.2018.08.029
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