Assessment of land use and climate change impacts on the mesoscale

Lahmer, Werner; Pfützner, Bernd; Becker, Alfred

doi:10.1016/s1464-1909(01)00051-x

Cited by 88 publications

(57 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These relatively small impacts on urban runoff can be explained by the rural structure of the basin, in which doubling of the urban area results in only 5% urban land use. However, similar results were obtained in catchments with somewhat larger percentages of urban areas, for instance, by Fohrer et al (2001), Lahmer et al (2001), Klöcking and Haberlandt (2002) and Niehoff et al (2002).…”

Section: Discussionsupporting

confidence: 82%

“…Fohrer et al (2001) applied the physically-based hydrological model SWAT mod to a meso-scale catchment to assess the effect of land-use changes on annual water balances and on temporal runoff dynamics and showed that surface runoff was most susceptible to land-use changes. Two applications of land-use change using the ArcEGMO model (Lahmer et al, 2001;Klöcking and Haberlandt, 2002) to meso-and macro-scale catchments demonstrated relatively minor effects on various water balance components but larger effects on water availability. In a semi-humid meso-scale catchment in eastern Germany, Wegehenkel (2002) assessed the impact of afforestation on the water balance using the conceptual hydrological model THESEUS and found a significant reduction in discharge and an increase in evapotranspiration.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Quantifying the impact of land-use changes at the event and seasonal time scale using a process-oriented catchment model

Ott

Uhlenbrook

2004

Hydrol. Earth Syst. Sci.

110

View full text Add to dashboard Cite

For optimal protection and integrated management of water resources, it is essential to quantify the impact of land-use change on hydrological regimes at various scales. Using the process-based catchment model TAC D (tracer aided catchment model, distributed) two land-use scenarios were analysed for the rural and mountainous Dreisam basin (258 km 2 ): (i) an increase in urban area from 2.5% to 5%) and (2) a change in a natural land-use to a different kind of forest. The first scenario was executed using the land-use change modelling kit LUCK, which takes into account the topology of land-use patterns in their true positions. The TAC D model simulated all hydrological processes both spatially and temporally (200 m × 200 m grid, hourly mode). For this study, physically-based modules for interception and evapotranspiration (Penman and Monteith approach) were introduced. The model was applied to the Dreisam basin with minimal calibration. Both an independent validation period and discharge in four nested sub-basins were modelled well without recalibration. Evapotranspiration patterns were simulated, successfully, both temporally and spatially. Increased urbanisation had an insignificant effect on the modelled single events and on the yearly water balance. Simulations of discharge from forest assuming natural land-use conditions indicated an increase in transpiration, a decrease in groundwater recharge and, consequently, in groundwater discharge (15%), in surface water discharge (4%), and in flood peaks (22.7% and 7.3% for convective and advective floods, respectively). Land-use impact was also investigated by applying rainfall scenarios of different durations (12, 24, 48, and 72 hours), magnitudes (recurrence intervals of 1, 5, and 10 years) and distributions of rainfall intensity, i.e. maximum intensity at the beginning, middle or end of the event. Clearly, the intensity distribution has a greater influence on the simulated events than different land use scenarios. This indicated the importance of careful determination of the temporal intensity distribution for flood peak predictions. The use of the process-based model enabled analysis of the altered composition of internal runoff components. This demonstrated the potentially significant local effects of land-use change on flood runoff and water quality.

show abstract

Section: Discussionsupporting

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Quantifying the impact of land-use changes at the event and seasonal time scale using a process-oriented catchment model

Ott

Uhlenbrook

2004

Hydrol. Earth Syst. Sci.

110

View full text Add to dashboard Cite

show abstract

“…However, it was shown that the differences in the soil characteristics under these different land covers was more important than the vegetation characteristics. This contradicts the conclusions of Lahmer et al, (2001) who found that arable reversion had only a small impact on runoff, but influenced evapotranspiration and interception more. Bormann et al, (2007) highlighted the uncertainty over the effects of land cover conversion.…”

Section: Discussioncontrasting

confidence: 91%

“…However the effects are difficult to predict (Burt and Slattery, 1996) due to the various variables involved and how changes in one balance effect another. Lahmer et al, (2001) states that arable reversion has only a small impact on surface runoff, but affects other processes, such as evapotranspiration and interception more, while Fohrer et al, (2001) believes runoff is most susceptible to changes due to land management. Naef et al, (2002) proposed three approaches to delay runoff which are; improved tillage, plant species with high root densities and permanent surface cover.…”

Section: Arable Agriculturementioning

confidence: 99%

See 1 more Smart Citation

Rural land management impacts on catchment scale flood risk

Pattison¹

2010

Role of Hydrology in Managing Consequences of a Changing Global Environment

View full text Add to dashboard Cite

The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source• a link is made to the metadata record in Durham E-Theses• the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full Durham E-Theses policy for further details. Most approaches to this problem aim to upscale from individual grid cells to whole catchments, something that restricts the complexity of possible process representation, produces models that may not be parsimonious with the data needed to calibrate them and, faced with data uncertainties, provides computational limitations on the extent to which model uncertainty can be fully explored. Rather than upscaling to problems of concern, this thesis seeks to downscale from locations of known flood risk, as a means of identifying where land use management changes might be beneficial and then uses numerical modelling to identify the kinds of management changes required in those downscaled locations. Thus, the aim of this thesis is to test an approach to understanding the impacts of rural land management upon flood risk based upon catchment-to-source downscaling.This thesis uses the case study of the River Eden catchment (2400 km 2 ) as a test (1) it was shown to have a significant impact on downstream flood risk; and (2) it had range of data and information needed for modelling land use changes.The second part of this thesis explored the land management scenarios that could be used to reduce flood risk at the catchment scale. The scenarios to be tested were determined through a stakeholder participation approach, whereby workshops were held to brainstorm and prioritise land management options, and then to identify specific locations within the Eamont sub-catchment where they could tested. There were two main types of land management scenarios chosen: (1) landscape-scale changes, including afforestation and compaction; and (2) corresponding to a 5.8% decrease in peak discharge. A key conclusion is that land management practices have been shown to have an effect on catchment scale flooding, even for extreme flood events. However, the effect of land management scenarios are both spatially and temporally dependent i.e. the same land management practice has different effects depending on where it is implemented, and when implemented in the same location has different effects on different flood events.

show abstract

Resuscitative emergency thoracotomy in a Swiss trauma centre (Br J Surg 2012; 99: 541–548)

Civil

2012

British Journal of Surgery

View full text Add to dashboard Cite

Assessment of land use and climate change impacts on the mesoscale

Cited by 88 publications

References 4 publications

Quantifying the impact of land-use changes at the event and seasonal time scale using a process-oriented catchment model

Quantifying the impact of land-use changes at the event and seasonal time scale using a process-oriented catchment model

Rural land management impacts on catchment scale flood risk

Resuscitative emergency thoracotomy in a Swiss trauma centre (Br J Surg 2012; 99: 541–548)

Contact Info

Product

Resources

About