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Discussion papers
https://doi.org/10.5194/soil-2016-29
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/soil-2016-29
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Original research article 24 May 2016

Original research article | 24 May 2016

Review status
This discussion paper is a preprint. It has been under review for the journal SOIL (SOIL). The revised manuscript was not accepted.

Hydrological corridors for landscape and climate restoration: Prioritization of re-greening areas in Kenya and Tanzania

Judith E. M. Klostermann1, Luuk Fleskens1, Erik Querner1, Herbert Ter Maat1, Ronald Hutjes1, Fons Jaspers2, and Sander de Haas2 Judith E. M. Klostermann et al.
  • 1Alterra, Wageningen University and Research, Wageningen, 6700AA, The Netherlands
  • 2Naga Foundation, Amsterdam, 1012KL, The Netherlands

Abstract. The Naga Foundation aims to implement durable re-greening interventions to increase local soil sustainability and regional water availability. When this is done on a large enough scale such landscape changes may also lead to positive regional climate impacts. Naga is developing a plan to re-green 15 large areas in Eastern Africa, creating a so-called hydrological corridor. Four potential hydrological corridors have been identified in Kenya and Tanzania, all four of them around Mount Kilimanjaro. To select the most promising corridor, a method was developed to support a decision in a situation where few data are available. The method is based on maps, models and literature from four different disciplines concerning soil, water, climate and social institutions. The findings favour the Tanzanian corridors and especially the Tanzania-East one, to start with re-greening projects. In that region many applicable land management options combine with a high potential for restoring soil organic matter, the highest rainfall recycling potential exists in the more favourable long rains season, while finally also the Tanzanian governments both at national and at local level seem more dependable for supporting hydrological corridor implementation.

Judith E. M. Klostermann et al.
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Interactive discussion
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Judith E. M. Klostermann et al.
Judith E. M. Klostermann et al.
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Short summary
Regreening of degraded land can prevent erosion and increase water availability. If it is done at a sufficiently large scale it may also lead to positive climate feedbacks such as increased rainfall. We aimed to select the best locations for such a regreening effort. The selection method was based on soil characteristics, water systems, climate patterns and adaptive capacity of local societies. We concluded that the best place for a regreening corridor probably is in East Tanzania.
Regreening of degraded land can prevent erosion and increase water availability. If it is done...
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