Desire for Greener Land

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SLM technology options Level bench terrace Reforestation Option Effectiveness in reducing runoff Reduce evaporation Wang Fei Check dam land Contour ridging Wang Fei Fish-scale pits Mulching Rudi Hessel Reduce siltation downstream Improve drinking water quantity and quality Case study of the DESIRE methodology – Yan River Basin, China DESIRE – WOCAT 2012 Cost effectiveness Increase yield Water Level bench terrace 7 3 6 4 6 7 7 Reforestation 5 1 4 2 4 1 2 Check dam land 7 1 7 7 3 4 4 Contour ridging 5 4 5 3 4 5 6 Fish-scale pits 4 3 3 2 2 1 2 Mulching 4 5 5 4 6 5 5 Wang Fei Rudi Hessel Wang Fei 263
The results showed that the best option in this area is check dam land, then level bench terrace and reforestation. Constructing check dams requires design and great financial input. It was therefore not possible to implement it in DESIRE. Therefore level bench terrace and reforestation have been selected for implementation. III Trialling and monitoring terraces Experiments were carried out to monitor soil moisture and soil loss in different land use types in sloping areas and also in terraced land. High intensity rainfall was generated with a rainfall simulator, and data were collected for rain events lasting 30 and 60 minutes. Soil samples were collected to determine soil moisture level. Runoff samples were collected to determine sediment content and soil loss. Results Results showed that soil loss was different for different land use types: no soil loss was observed on terraces, while orchards had very high soil loss. Results also showed that the longer rainfall event caused more erosion than the shorter one, but not twice as much as might have been expected based on the difference in duration. The results were also evaluated from a production, sociocultural and economic point of view, using the part of the WOCAT system that evaluates conservation technologies (www.wocat.net). The bars in the figure on the next page express the estimated or measured effect compared to the reference situation (untreated plots). This change can be positive (blue) or negative (red). Overall, the results were positive. Variable 2009 2010 Meteo Moisture Yield Erosion Input Output 264 Soil erosion modulus (tons.km-2) 10000 9000 8000 7000 6000 5000 4000 3000 2000 1000 0 Main conclusions Erosion - 30 minutes Erosion - 60 minutes Terrace Reforestation land Grassland Orchard bare land Land use type Wang Fei – Terracing improves soil moisture condition, controls soil erosion and increases agricultural production. – The farmers are convinced that soil and water conservation practices help to protect the land from degradation, but they do not think that it is possible to get more income from the land. They hope that the results of DESIRE influence local government to invest more to build terraces. DESIRE – WOCAT Desire for Greener Land
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Desire for Greener Land Options for
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DESIRE - WOCAT Desire for Greener L
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Co-published by University of Bern,
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Cross-slope barriers Progressive be
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The present DESIRE publication desc
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Contributing authors and DESIRE con
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Desire for Greener Land - Options f
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XIV DESIRE - WOCAT Desire for Green
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Figure 1: Desertification vulnerabi
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In DESIRE, WOCAT methods and tools
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Part 1
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8 DESIRE - WOCAT Desire for Greener
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Figure 1: Methodological framework
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to Russia and China (see Table 1).
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DRI = 5.4 Very high desertification
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Table 2 provides a more detailed de
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decision. This leads to solutions b
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Aims and objectives This penultimat
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Figure 7: The DESIRE Project has fo
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References: n EEA-European Environm
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Area (x1000 Ha) Major land use type
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Major land degradation types per st
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Rate of degradation per study site
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Production services were affected o
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% of area under conservation measur
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Figure 16: Effectiveness of conserv
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Conservation impact on ecosystem se
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Analysis of SLM technologies Introd
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Table 2: WOCAT categories of SLM me
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Origin of technology SLM technologi
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Table 3: Sensitivity of and toleran
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No. of case studies Land Ownership
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No. of case studies Increased farm
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No. of case studies Improved harves
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No. of case studies Increased plant
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No. of case studies No. of case stu
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Analysis of SLM approaches Introduc
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system is focused on control rather
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References: n Alkemade, J. R. M., v
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actually implemented in the field.
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Concerning SLM, the most widely app
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Part 2 DESIRE - WOCAT Desire for Gr
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Desire for Greener Land Mexico Land
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2.1 SLM case studies Case studies -
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Case studies - titles and short des
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76 DESIRE - WOCAT Desire for Greene
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Classification Land use problems: T
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Assessment Impacts of the Technolog
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Class sification Land d use problem
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Class sification Land use problemss
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Classification Land use problems: I
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Classification Land use problems: D
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Classification Land use problems: L
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Problem, objectives and constraints
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Impacts of the Approach Improved su
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Impacts of the Approach Improved su
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Input: - Equipment (machinery, tool
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Page 245 and 246: Desire for Greener Land Opopejo Qui
Page 247 and 248: 2.2 Mapping case studies This secti
Page 249 and 250: Land recommendation Land conservati
Page 251 and 252: Portugal - Maçao The Maçao area h
Page 253 and 254: Italy - Rendina The Rendina area ex
Page 255 and 256: Greece - Nestos This area has chemi
Page 257 and 258: Turkey - Eskişehir The Eskeheşir
Page 259 and 260: Tunisia - Koutine The Koutine area
Page 261 and 262: Russia - Novy Land use in the Novy
Page 263 and 264: Botswana - Boteti The main land use
Page 265 and 266: Chile - Cauquenes The Cauquenes are
Page 267 and 268: 252 DESIRE - WOCAT Desire for Green
Page 269 and 270: Status of land degradation, sustain
Page 271 and 272: Examples of potential SLM technolog
Page 273 and 274: IV Up-scaling SLM strategies Actual
Page 275 and 276: Case study of the DESIRE methodolog
Page 277: II Identifying, evaluating and sele
Page 281 and 282: IV Up-scaling SLM strategies Some r
Page 285 and 286: Explanation pages of case studies:
Page 287 and 288: Cropland (or grazing land, mixed la
Page 289 and 290: Explanation pages of case studies:
Page 291 and 292: Here appears an organogram - if ava
Page 293 and 294: Pictograms SLM technology Land use
Page 297 and 298: Logos of partners 282 DESIRE - WOCA
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