1.2 Технологийг үнэлэх, баримтжуулах ажилд хамаарах мэдээлэл өгсөн хүмүүс, байгууллагуудын холбоо барих мэдээлэл

Технологи баримтжуулах/үнэлэх ажилд дэмжлэг үзүүлсэн төслийн нэр (шаардлагатай бол)

Технологи баримтжуулах/үнэлэх ажилд дэмжлэг үзүүлсэн байгууллага(ууд)-ын нэр (шаардлагатай бол)

1.3 ВОКАТ-аар баримтжуулсан өгөгдлийг ашиглахтай холбоотой нөхцөл

Эмхэтгэгч болон гол мэдээлэгч хүн(хүмүүс) WOCAT аргачлалаар баримтжуулсан мэдээллийг ашиглахтай холбоотой нөхцлийг хүлээн зөвшөөрсөн:

Тийм

1.5 ГТМ Арга барилын Асуулга (ууд) руу хандах (ВОКАТ ашиглан баримтжуулсан)

Regional rural development programme [Испани]

Regional development programme to protect natural resources and stimulate rural economies.

• Эмхэтгэгч: Joris De Vente
• 05/12/2009 шөнө дунд

2.1 Технологийн товч тодорхойлолт

Технологийн тодорхойлолт:

Earth-banked terraces in cereal and almond cropland covered with drought-resistant shrubs.

2.2 Технологийн дэлгэрэнгүй тодорхойлолт

Тодорхойлолт:

Earth-banked terraces are constructed by carefully removing a superficial soil layer (~10-20 cm) from one part of a field, concentrating it on the lower end of that field in order to reduce slope gradient and length. Another terrace is created directly downslope to form a cascade of terraces. Terrace risers have to be of restricted height (~50-150 cm) to prevent steep and unstable terraces. Stones from the fields can be used to reinforce the terrace ridge. After terrace construction, fields should be gently sloping (<3%) in the direction of the main slope. The distance between terraces must be enough to allow tractor movement during normal cultivation activities and it depends also on the slope gradient. The steeper the slope, the shorter is the distance between terraces. Terraces reduce the formation of gullies and retain water from upslope. The terraces are made with locally available machinery (tractor, small bulldozer). The terrace ridges are optimal locations to plant olives, almonds or fruit trees. Moreover, to be most effective, the terrace ridges are vegetated with shrubs adapted to semi-arid conditions and with a good surface cover (>~30%) throughout the year (e.g. Stipa tenacisima, Rosmarinus officinalis, Thymus vulgaris, Ulex parviflorus, Rhamnus lycioides, Pistacia lentiscus). Natural regeneration of vegetation is allowed without limitation on the terrace ridges, so no herbicide application or burning are carried out to remove weeds. Where possible, regeneration should be stimulated by planting the same adapted species in at least 25% of the terrace ridge. Optionally, in the other 75% of the terrace ridge, cereals or other leguminous species can be sown, but should not be harvested or used for grazing.

Purpose of the Technology: This technology reduces flooding, damage to infrastructure and siltation of water reservoirs, while maintaining (or slightly increasing) crop productivity. This is achieved by reducing runoff, soil erosion and hydraulic connectivity through a decreased slope gradient and an increased vegetation cover. The terrace ridge functions as a sink for runoff within fields and reduces runoff velocity. The vegetation leads to increased soil organic matter content below plants, producing an improved soil structure and a higher infiltration capacity. The use of stones from the fields to reinforce the terraces is optional, but facilitates crop production in the fields and makes the ridges more resistant to higher runoff velocities. The technology requires an initial investment in the construction of the terraces. Terraces can best be located on thalwegs and on areas where gully formation is often observed. Maintenance consists of filling up possible bank gullies developed in the terraces after important rainfall events and, if needed, substitute decayed shrubs with new ones.

Natural / human environment: The technology is generally applied on soils of shallow to medium depth (20 – 60 cm), and slopes are gentle to moderate (5-15%). The climate is semi-arid with a mean annual rainfall around 300 mm. Droughts, peaking in summer commonly last for more than 4-5 months. Annual potential evapotranspiration rates larger than 1000 mm are common. The production system is highly mechanized and market-oriented but depends strongly on agricultural subsidies. All cropland is privately-owned.

2.3 Технологийн гэрэл зураг

2.5 Энэ үнэлгээнд хамрагдсан технологийг хэрэгжүүлсэн улс орон/ бүс нутаг/ байршил

Улс:

Испани

Улс/аймаг/сум:

Murcia

Байршлын дэлгэрэнгүй тодорхойлолт:

Guadalentin catchment

Технологи өргөн дэлгэрсэн эсхийг тодорхойл:

• газар дээр жигд тархсан

Хэрэв талбайн хэмжээ тодорхойгүй бол талбайн хэмжээг ойролцоогоор тодорхойлно уу:

• 10-100 км2

Map

×

2.6 Хэрэгжсэн хугацаа

Байгуулсан тодорхой оныг мэдэхгүй бол баримжаа хугацааг тодорхойл:

• >50 жилийн өмнө (уламжлалт)

2.7 Технологийн танилцуулга

Технологийг хэрхэн нэвтрүүлснийг тодорхойл:

• Уламжлалт системийн хэсэг (> 50 жил)

Тайлбар (төслийн төрөл г.м.):

Most of the earthen terraces are already much older than 50 years. Recently, the regional administration is promoting clearly defined vegetated strips with minimum dimensions in order to apply for subsidies.

3.2 Технологи нэвтрүүлсэн газрын одоогийн газар ашиглалтын хэлбэр(үүд)

Нэг газр нутгийн хэмжээнд хэрэгжих холимог газар ашиглалт:

Тийм

Газар ашиглалтын холимог тогтолцоог (тарилан/бэлчээр/ой мод) тодорхойл:

• ХАА-н ойжуулалт

Тариалангийн талбай

• Нэг наст үр тариа
• Мод, сөөг тарих

Мод, бут тариалах - Таримлыг тодорхойлно уу:

• модны самар (бразил самар, туулайн бөөр, хушга, бүйлс г.м.)

Жилд ургамал ургах улирлын тоо:

• 1

Тодорхойлно уу:

Longest growing period in days: 220Longest growing period from month to month: November to June

Бэлчээрийн газар

Байгалийн ой / модтой газар

• (Таримал) байгалийн ой/мод бүхий газар

Тайлбар:

Major land use problems (compiler’s opinion): A lack of water availability seriously limits the production potential of the soil and results in a low vegetation/crop cover. The relatively high soil erosion rates cause various off-site related problems (i.e. flooding, reservoir siltation) and on-site problems (i.e. gully formation and loss of soil depth).

Major land use problems (land users’ perception): Lack of water for irrigation of crops limiting the crop types that can be planted as well as the crop yield of dryland farming.

Number of growing seasons per year:

1

Specify:

Longest growing period in days: 220Longest growing period from month to month: November to June

3.5 Технологи ГТМ-ийн аль бүлэгт хамаарах вэ

• хөрс/ ургамлын бүрхэвч сайжруулах
• Налуугийн арга хэмжээ

3.6 Технологийг бүрдүүлэх ГТМ арга хэмжээ

Ургамлын арга хэмжээ

• V1: Мод ба бут, сөөг
• V2: Өвс ба олон наст өвслөг ургамал

Барилга байгууламжийн арга хэмжээ

• S1: Террас

Тайлбар:

Main measures: vegetative measures, structural measures

Type of vegetative measures: aligned: -contour

3.7 Технологид харгалзах газрын доройтлын төрөл

хөрс усаар эвдрэх

• Wt: Хөрсний гадаргын угаагдал
• Wg: Гуу жалгын элэгдэл
• Wo: Усны элэгдлийн дам нөлөө

усны доройтол

• Ha: Хуурайшилт

Тайлбар:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion, Wg: gully erosion / gullying, Wo: offsite degradation effects

Secondary types of degradation addressed: Ha: aridification

Main causes of degradation: crop management (annual, perennial, tree/shrub) (Almond and cereal fields often have a relatively low surface cover by vegetation during long periods of the year, leaving the soil unprotected against raindrop impact and rill or gully formation), disturbance of water cycle (infiltration / runoff) (Reduced infiltration capacity causing runoff and soil erosion), other human induced causes (specify) (Cropping of relatively steep slopes sensitive to erosion because of slope gradient), governance / institutional (spatial planning of land use results in formation of too large fields without field boundaries)

Secondary causes of degradation: Heavy / extreme rainfall (intensity/amounts) (High intensity erosive rainfall is common), droughts (Dry periods and dry years require higher water availability)

3.8 Газрын доройтлоос урьдчилан сэргийлэх, сааруулах ба нөхөн сэргээх

Газрын доройтолтой холбоотойгоор Технологи ямар зорилго тавьсан болохыг тодорхойл:

• газрын доройтлоос урьдчилан сэргийлэх
• Газрын доройтлыг бууруулах

Тайлбар:

Main goals: prevention of land degradation, mitigation / reduction of land degradation

4.1 Технологийн техник зураг

Техник тодорхойлолт (техник зургийн тайлбар):

Quickbird satellite image showing the concentration of terraces along natural drainage lines (thalwegs) where runoff concentrates. Drainage lines are indicated with dotted lines.

Location: Torrealvillla. Murcia

Date: Satellite image 2003

Technical knowledge required for field staff / advisors: moderate (Design of the terraces and selection of the location requires some technical knowledge.)

Technical knowledge required for land users: low (Practical implementation of the terraces does not require a high level of knowledge)

Main technical functions: control of dispersed runoff: retain / trap, control of dispersed runoff: impede / retard, control of concentrated runoff: retain / trap, control of concentrated runoff: impede / retard, reduction of slope angle, increase of infiltration, increase / maintain water stored in soil

Secondary technical functions: reduction of slope length, improvement of ground cover, stabilisation of soil (eg by tree roots against land slides), increase in organic matter, water harvesting / increase water supply, sediment retention / trapping, sediment harvesting, spatial arrangement and diversification of land use

Aligned: -contour
Vegetative material: F : fruit trees / shrubs
Number of plants per (ha): 42
Vertical interval between rows / strips / blocks (m): 1
Spacing between rows / strips / blocks (m): 30-100
Vertical interval within rows / strips / blocks (m): 0.5-7
Width within rows / strips / blocks (m): 2

Vegetative measure: alligned: contour
Vegetative material: G : grass
Number of plants per (ha): >30% cover
Vertical interval between rows / strips / blocks (m): 1
Spacing between rows / strips / blocks (m): 30-100
Vertical interval within rows / strips / blocks (m): 0.5
Width within rows / strips / blocks (m): 2

Vegetative measure: Vegetative material: G : grass

Vegetative measure: Vegetative material: G : grass

Vegetative measure: Vegetative material: G : grass

Fruit trees / shrubs species: natural regeneration of shrubs with possible additional plantation of almond trees and/or woody shru

Grass species: Natural regeneration assisted by seeding of legiminous species and cereals

Slope (which determines the spacing indicated above): 10.00%

Terrace: forward sloping
Vertical interval between structures (m): 1
Spacing between structures (m): 30-100
Height of bunds/banks/others (m): 0.5-1.5
Width of bunds/banks/others (m): 2
Length of bunds/banks/others (m): 50-200

Construction material (stone): Only when many stones are present in the fields

Slope (which determines the spacing indicated above): 5-15%

If the original slope has changed as a result of the Technology, the slope today is: <3%

Lateral gradient along the structure: 0%

Vegetation is used for stabilisation of structures.

Зохиогч:

Joris de Vente

4.2 Материал болон зардалд хамаарах ерөнхий мэдээлэл

бусад/үндэсний мөнгөн нэгж (тодорхойл):

EURO

Хэрэв боломжтой бол үндэсний валютын Америк доллартай харьцах харьцааг бичнэ үү (тухайлбал, 1 ам.дол. = 79,9 Бразил реал): 1 ам.дол. =:

0.63

4.3 Бий болгох үйл ажиллагаа

4.4 Бий болгоход шаардагдсан зардал, хөрөнгийн өртөг

Тайлбар:

Duration of establishment phase: 12 month(s)

4.5 Арчилгаа/ урсгал үйл ажиллагаа

4.6 Арчилгаа/урсгал ажилд шаардагдсан зардал, хөрөнгийн өртөг (нэг жилд)

Тайлбар:

Machinery/ tools: For initial construction a large tractor or small bulldozer is required. For maintanance a normal tractor can be used.

The costs were indicated assuming a distance between terraces of 50 meter, meaning two terraces of 100 meter long per hectare. Prices are for spring 2008. Subsidies are foreseen for the installation of the vegetated terraces and for maintenance during at least 4 years if all requirements are fullfilled that are described in the regional development programme.

4.7 Зардалд нөлөөлж байгаа хамгийн чухал хүчин зүйл

Өртөг, зардалд нөлөөлөх гол хүчин зүйл:

Price of fuel and labour are the most important determinants of the costs.

5.1 Уур амьсгал

5.2 Гадаргын хэлбэр

Технологи дараах асуудалд хандсан эсэхийг тодорхойл:

• хотгор нөхцөл

Гадаргын талаархи тодорхойлолт ба бусад тайлбар:

Landforms: Hill slopes-footslopes (mostly on concave slope segments)

5.3 Хөрс

5.4 Усны хүртээмж ба чанар

Усны чанар, нөөцийн талаархи тайлбар ба бусад тодорхойлолт:

Ground water table: >50m (There is a lowering of groundwater table due to overexploitation for irrigation purposes)
Availability of surface water: Poor/none (excess: sporadically there are flash floods during extreme rainfall events)
Water quality (untreated): For agricultural use only (irrigation) (groundwater)

5.5 Биологийн олон янз байдал

5.6 Технологи нэвтрүүлсэн газар ашиглагчдын тухай мэдээлэл

Газар ашиглагчдын бусад шинж чанарыг тодорхойл:

Land users applying the Technology are mainly common / average land users

Difference in the involvement of women and men: Traditionally most agriculture is done by men in this region.

Population density: 10-50 persons/km2

Annual population growth: < 0.5%

15% of the land users are rich and own 20% of the land.
80% of the land users are average wealthy and own 75% of the land.
5% of the land users are poor and own 5% of the land.

Off-farm income specification: There is no difference in the ones who apply the technology and those who don’t. Most farmers do have an off-farm income for example from hunting, work in a factory, or office.

5.7 Газар ашиглагчийн технологи нэвтрүүлсэн газрын дундаж талбайн хэмжээ

5.8 Газар эзэмшил, газар ашиглах эрх, ус ашиглах эрх

Газар өмчлөл:

• хувь хүн, өмчийн гэрчилгээтэй

Газар ашиглах эрх:

• хувь хүн

Ус ашиглах эрх:

• хувь хүн

Тайлбар:

All cropland is privately owned. Some shrubland or forest is state property. Water use is organised by permits to water extraction from aquifers on individual basis. Water rights are provided and controlled by the Water authority of the Segura river basin (CHS).

5.9 Дэд бүтэц, үйлчилгээний хүртээмж

6.1 Технологийн талбайд үзүүлсэн нөлөө

Нийгэм-эдийн засгийн үр нөлөө

Үйлдвэрлэл

Орлого, зарлага

Нийгэм-соёлын үр нөлөө

Экологийн үр нөлөө

Усны эргэлт/ илүүдэл

Хөрс

Биологийн олон янз байдал: ургамал, амьтан

6.2 Технологийн талбайн гадна үзүүлсэн үр нөлөө

6.3 Технологийн уур амьсгалын өөрчлөлт, цаг агаарын гамшигт үзэгдэлд өртөх байдал ба эмзэг байдал (газар ашиглагчийн бодлоор)

Уур амьсгалын аажим өөрчлөлт

Уур амьсгалын аажим өөрчлөлт

Тайлбар:

The crop type is sensitive to changes in water availability under the semi arid conditions

6.4 Өртөг ба ашгийн шинжилгээ

Бий болгох зардалтай харьцуулахад ямар ашиг өгсөн бэ (газар ашиглагчийн бодлоор)?

Арчилгаа/урсгал зардалтай харьцуулахад ямар ашиг өгсөн бэ (газар ашиглагчийн бодлоор)?

Тайлбар:

Implementation of the terraces is relatively expensive. Additionally planting of shrubs is also relatively expensive and requires a subsidy. Once installed, maintenance is not expensive and pays off because of less damage to fields and infrastructure.

6.5 Технологи нэвтрүүлэлт

Технологи нэвтрүүлсэн хүмүүсээс хэд нь өөрийн хүчээр технологийг хэрэгжүүлсэн бэ, өөрөөр хэлбэл гадны тусламж дэмжлэг авалгүйгээр?

• 11-50%

Тайлбар:

80% of land user families have adopted the Technology with external material support

Comments on acceptance with external material support: Terraces are traditionally widespread in the region. Most of them were installed without external support. Nowadays there are subsidies for construction and maintenance of vegetated strips and terraces.

20% of land user families have adopted the Technology without any external material support

There is no trend towards spontaneous adoption of the Technology

Comments on adoption trend: There is acceptance, but it is not growing. In some parts terraces are removed to make larger fields, and some new ones are also constructed. Recently installed subsidies may change this

6.7 Технологийн давуу тал/боломжууд

6.8 Технологийн дутагдалтай/сул тал/аюул болон тэдгээрийг хэрхэн даван туулах арга зам

7.1 Мэдээлэл цуглуулсан арга/эх үүсвэр

7.2 Ном, хэвлэлийн ишлэл

Гарчиг, зохиогч, он, ISBN:

Garcia-Fayos, P. and Gasque, M., 2002. Consequences of a severe drought on spatial patterns of woody plants in a two-phase mosaic steppe of Stipa tenacissima L. Journal of Arid Environments, 52(2): 199-208.

Хаанаас авч болох вэ? Зардал?

internet

Гарчиг, зохиогч, он, ISBN:

Hooke, J.M., 2006. Human impacts on fluvial systems in the Mediterranean region. Geomorphology, 79(3-4): 311-335.

Хаанаас авч болох вэ? Зардал?

internet

Гарчиг, зохиогч, он, ISBN:

Kirkby, M.J., Bracken, L.J. and Shannon, J., 2005. The influence of rainfall distribution and morphological factors on runoff delivery from dryland catchments in SE Spain. CATENA, 62(2-3): 136-156.

Хаанаас авч болох вэ? Зардал?

internet

7.3 Холбогдох мэдээллийн интернет холбоос

Гарчиг/ тодорхойлолт:

CARM 2008. Programa de Desarrollo Rural de la Región de Murcia 2007-2013 Tomo I. 508pp

URL:

http://www.carm.es/neweb2/servlet/integra.servlets.ControlPublico?IDCONTENIDO=4689&IDTIPO=100&RASTRO=c431$m1219