Hydrological trade-offs due to different land covers and land uses in the Brazilian Cerrado

Anache, Jamil A. A.; Wendland, Edson; Rosalem, Lívia M. P.; Youlton, Cristian; Oliveira, Paulo T. S.

doi:https://doi.org/10.5194/hess-23-1263-2019

Articles | Volume 23, issue 3

https://doi.org/10.5194/hess-23-1263-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-23-1263-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 3

Research article

|

07 Mar 2019

Research article |

| 07 Mar 2019

Hydrological trade-offs due to different land covers and land uses in the Brazilian Cerrado

Jamil A. A. Anache, Edson Wendland, Lívia M. P. Rosalem, Cristian Youlton, and Paulo T. S. Oliveira

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Final revised paper (published on 07 Mar 2019)
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Preprint (discussion started on 29 Aug 2018)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Anache, Wendland et al. 2018', Anonymous Referee #1, 11 Sep 2018
- AC4: 'Response to referee 1', Jamil Alexandre Ayach Anache, 21 Oct 2018
RC2: '„Hydrological trade-offs due to different land covers and land uses in the Brazilian Cerrado', Anonymous Referee #1, 17 Sep 2018
- AC1: 'Response to referee 1', Jamil Alexandre Ayach Anache, 21 Oct 2018
- AC5: 'Figure 3 update', Jamil Alexandre Ayach Anache, 30 Oct 2018
RC3: 'Review HESS-2018-415', Anonymous Referee #2, 20 Sep 2018
- AC2: 'Response to referee 2', Jamil Alexandre Ayach Anache, 21 Oct 2018
RC4: 'Anonymous Referee #3', Anonymous Referee #3, 26 Sep 2018
- AC3: 'Response to referee 3', Jamil Alexandre Ayach Anache, 21 Oct 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (further review by editor and referees) (05 Nov 2018) by Martijn Westhoff

Dear Authors,

You have received three reviews, which all provided clear feedback on how to improve the manuscript. Although all questions raised by the reviewers should be adressed, I consider two of them as rather important ones:

Referee 1 correctly mentioned that dS/dt is a water residual (including storage, recharge and deep infiltration). I think it is important to mae that clear from the beginning.

Referee 2 mentioned the time lag between precipitation and GW recharge. Even if the hydraulic conductivity of the unsaturated soil is not 10^-3 but 10^-1, the travel time for a rain drop to reach the groundwater will still be in the order of 1 year. This means that the groundwater fluctuations are completely disconnected to what happens on the surface. The GW fluctuations also reflect a much larger area than the plot scale. So maybe, the GW fluctuations should be left out of the analysis completely. Instead the focus should be on the top soil (up to the rooting depth?).

On top of these two comments, I have another comment about the error calculations: When calculating the water balance residuals, a lot of uncertainty lies in the evaporation estimates. The error is not only coming from random noise in the measurements, but also from the used formulation (e.g. Penmann-Monteith vs. Priestley-Taylor). Besides that, the fact that you come up with a lower error estimate for the Cerrado site, seems to arise from the fact that in PM more parameters are required, which all sum-up in the error calculation (Eq. 11) (unless you have a clear idea on the error in the Priestly and Taylor coefficient).

Please make also sure that units for all equations are correct (this is not the case for (at least) Eq. 3). Also be aware that multi-letter variables should be avoided (see the mathematical requirements at https://www.hydrology-and-earth-system-sciences.net/for_authors/manuscript_preparation.html).

With kind regards,

Martijn Westhoff

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AR by Jamil Alexandre Ayach Anache on behalf of the Authors (07 Dec 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (19 Dec 2018) by Martijn Westhoff

RR by Anonymous Referee #3 (11 Feb 2019)

ED: Publish subject to technical corrections (11 Feb 2019) by Martijn Westhoff

AR by Jamil Alexandre Ayach Anache on behalf of the Authors (12 Feb 2019) Author's response Manuscript

Short summary

We assessed the water balance over 5 years in different land uses typical of the Brazilian Cerrado: tropical woodland, bare land, pasture and sugarcane. Land uses may affect hillslope hydrology and cause trade-offs; the woodland consumes the soil water storage along the dry season, while the agricultural LCLU (pasture and sugarcane) reduces the water consumption in either season, and the aquifer recharge rates may be reduced in forested areas due to increased water demand by the vegetation.