1.2 参与该技术评估和文件编制的资源人员和机构的联系方式

有助于对技术进行记录/评估的机构名称（如相关）

INIDA (INIDA) - 佛得角

1.3 关于使用通过WOCAT记录的数据的条件

编制者和关键资源人员接受有关使用通过WOCAT记录数据的条件。:

是

1.4 所述技术的可持续性声明

这里所描述的技术在土地退化方面是否存在问题，导致无法被认为是一种可持续的土地管理技术？:

否

1.5 请参阅有关SLM方法的问卷

2.1 技术简介

技术定义:

Infrastructure of stone, mortar and concrete, built along the waterline, with the aim of retaining sediment dragged by water runoff.

2.2 技术的详细说明

说明:

Structures of large and long-term, in which the size depends on the slope of the stream and the soil and climate of the region. His installation also depends on the hydro-geology and topography and location of financial capital for its construction. The distance between two dikes, means are set, and is calculated by the slope of the bed, and the need to submit the site for its structure. It consists of an amount of vestment, a vestment of downstream foundation, crest and wings. This technique is consolidated with techniques of correction of slopes, as barriers, such as live barriers, banquets, afforestation, and others, increasing your time of life.

The purpose of their construction is to reduce the slope of the rivers and protect the bed, reducing the kinetic energy of flood water. The promotion of agricultural production is also one of its objectives, therefore retains sediment dragged the slopes, creating new agricultural areas. Contributes to the power of water, because it facilitates the infiltration with the decrease of velocity of flow. The implementation of the dam requires several previous studies with regard to its location, safety, design and budget. The activities of this technique, the most demanding in terms of knowledge and more expensive. After this stage do not require maintenance in the infrastructure, activities can occur in soil and water conservation within the basin. The technique is carried out in regions of sub-humid, arid and semi-arid, throughout the basin, regardless of local customs and the land next focus. The land recovered by this technique are mainly agricultural use. The construction of infrastructure USA the labor fronts of high-intensity or the local associations that can show. The most direct beneficiary of this technique, the use of agricultural areas caused, the owner is close to infrastructure. In some cases the ownership of land creates conflict among users of neighboring land.

2.3 技术照片

2.5 已应用该技术的、本评估所涵盖的国家/地区/地点

2.6 实施日期

如果不知道确切的年份，请说明大概的日期:

• 10-50年前

2.7 技术介绍

详细说明该技术是如何引入的:

• 通过项目/外部干预

3.1 该技术的主要目的

• 减少、预防、恢复土地退化

3.2 应用该技术的当前土地利用类型

注释:

Major land use problems (compiler’s opinion): Loss of soil by water runoff, reducing its thickness and fertility.

3.3 有关土地利用的更多信息

该技术所应用土地的供水:

• 雨养

注释:

Water supply: Also mixed rainfed - irrigated

具体说明:

Longest growing period in days: 90, Longest growing period from month to month: Aug - Oct

3.4 该技术所属的SLM组

• 地表水管理（泉、河、湖、海）

3.5 技术传播

注释:

Total area covered by the SLM Technology is 71.5 km2.

3.6 包含该技术的可持续土地管理措施

3.7 该技术强调的主要土地退化类型

注释:

Main causes of degradation: soil management (Intensive use of land.), crop management (annual, perennial, tree/shrub) (Cultivation of maize in areas unsuitable.), over-exploitation of vegetation for domestic use (Cutting of trees for firewood production.), Heavy / extreme rainfall (intensity/amounts) (High-intensity rainfall), education, access to knowledge and support services

Secondary causes of degradation: deforestation / removal of natural vegetation (incl. forest fires), overgrazing, population pressure, poverty / wealth

3.8 防止、减少或恢复土地退化

具体数量名该技术与土地退化有关的目标:

• 防止土地退化
• 减少土地退化

4.1 该技术的技术图纸

4.2 技术规范/技术图纸说明

The unloading of the dam was scaled to a particular section of the basin Maximum Full Flow (Q) = 30 m3 / s. The height of the dike is 5 meters and the length of the discharge is 20 m and height of 90 cm.

Location: Santiago. Cape Verde
Technical knowledge required for field staff / advisors: high

Main technical functions: control of dispersed runoff: retain / trap, reduction of slope angle, increase of infiltration, increase / maintain water stored in soil, increase of groundwater level / recharge of groundwater, sediment retention / trapping, sediment harvesting
Secondary technical functions: reduction of slope length, water harvesting / increase water supply

Dam/ pan/ pond
Vertical interval between structures (m): 29
Spacing between structures (m): 70.9

Construction material (stone): Of dry stone dykes, the sparrow-hawk or mortar
Construction material (concrete): Usually used in the foundation
Construction material (other): Argamassa: Used in stone masonry of the foundation and elevation. Trace 1:4 or 1:5
Slope (which determines the spacing indicated above): 30%

4.3 有关投入和成本计算的一般信息

其它/国家货币（具体说明）:

ECV

注明美元与当地货币的汇率(如相关):1美元=:

80.0

4.4 技术建立活动

	活动	措施类型	时间
1.	Excavation	结构性的	Dry period
2.	Masonry Foundation	结构性的	Dry period
3.	Masonry Lifting	结构性的	Dry period

4.5 技术建立所需要的费用和投入

注释:

Duration of establishment phase: 2.8 month(s)

4.8 影响成本的最重要因素

描述影响成本的最决定性因素:

Labor (cost) access due to transport of materials, mainly cement, sand and stone

5.1 气候

5.2 地形

5.3 土壤

如有可能，附上完整的土壤描述或具体说明可用的信息，例如土壤类型、土壤酸碱度、阳离子交换能力、氮、盐度等。:

Soil fertility: Medium
Soil drainage/infiltration: Medium (ranked 1) and good (ranked 2)
Soil water storage capacity: Low (ranked 1) and medium (ranked 2, little deep soils with high slopes)

5.4 水资源可用性和质量

关于水质和水量的注释和进一步规范:

Ground water table: Also > 50 m
Availability of surface water: Medium (Sources in the period of rains, but also through galleries)
Water quality (untreated): Also good drinking water (ranked 2)

5.5 生物多样性

5.6 应用该技术的土地使用者的特征

说明土地使用者的其他有关特征:

Population density: 100-200 persons/km2
Annual population growth: > 4%; 5% (0.5).
3% of the land users are average wealthy.
80% of the land users are poor.
Market orientation: Subsistence (Many owners have not put their products on the market)
Market orientation: Manual work (ranked 1) and mechanized (ranked 2, some owners rent tractor to plow their land)

5.7 应用该技术的土地使用者拥有或租用的平均土地面积

5.8 土地所有权、土地使用权和水使用权

土地所有权:

• 个人，有命名

土地使用权:

• 租赁
• 个人

用水权:

• 社区（有组织）
• 个人

5.9 进入服务和基础设施的通道

6.1 该技术的现场影响

社会经济效应

生产

水资源可用性和质量

社会文化影响

生态影响

水循环/径流

土壤

6.2 该技术的场外影响已经显现

6.3 技术对渐变气候以及与气候相关的极端情况/灾害的暴露和敏感性（土地使用者认为的极端情况/灾害）

渐变气候

渐变气候

	季节	气候变化/极端天气的类型	该技术是如何应对的？
年温度		增加	好

气候有关的极端情况（灾害）

气象灾害

	该技术是如何应对的？
局地暴雨	好
局地风暴	好

6.7 该技术的优点/长处/机会

土地使用者眼中的长处/优势/机会
Increase in irrigable area for growing crops.
Increased availability of water for irrigation, for livestock and for consumption.

编制者或其他关键资源人员认为的长处/优势/机会
Reducing the slope of the bed of the streams and hence the speed of water runoff.
Facilitates the infiltration of rain water and hence the recharge of aquifers.
Correction of watercourses and protection of the margins of streams.
Contributes to increasing and maintaining soil humidity.

7.1 信息的方法/来源

7.2 参考可用出版物

标题、作者、年份、ISBN:

Field Trip Guid - DESIRE - INIDA - Cabo Verde, 2008

可以从哪里获得?成本如何?

Library of INIDA

标题、作者、年份、ISBN:

Técnicas de Conservação de Solos e Água em Cabo Verde, MPAR & CILSS, 1994.

可以从哪里获得?成本如何?

Library of CFA -INIDA

标题、作者、年份、ISBN:

Conservação de Solo e Água (teoria e prática), Sabino, António Advino, 1991

可以从哪里获得?成本如何?

Library of CFA -INIDA

标题、作者、年份、ISBN:

Conservação de Solo e Água em Cabo Verde, Sabino, António Advino, 1984

可以从哪里获得?成本如何?

Library of INIDA