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

2.1 技术简介

技术定义:

Vegetative measure based on the planting of the bush, Leucaena leucocephala, on line along the level curves in the steep slopes

2.2 技术的详细说明

说明:

The technique consists of planting rows of Leucaena leucocephala in the level curves along the slopes. This legume has high rate of reproduction and the permanence of their seeds in the soil can reach 10 years before germination. It is very resistant to fire and to pruning. Can reach 4m in height and if not controlled, can invade a field of culture. The plant has great potential for feeding of livestock (protein (21-26% DM), fiber (15-25% of crude cellulose MS) vary depending on the age of the plant)

Purpose of the Technology: The planting in curves level is to achieve the stabilization and restoration of degraded soil. The technique reduces the runoff, retain sediment, solid, incorporates greater quantity of organic matter in the soil, promotes infiltration and covering the soil with vegetation.

Establishment / maintenance activities and inputs: Its installation requires a medium level of technical knowledge to marking the curves level where it will install. Planting is done in a simple way of transplanting a plant nursery to the ground. It is easy to spread a culture, its management after the fruit must be rigorous, ensuring that the fields become invasive. The early harvest fruit is an option to take into consideration when implementing this technique. The bar between the plant is 1m and the distance between the bands is associated with 5m.Sometimes it is ssociated with olds small punch to rehabilitating that structure.

Natural / human environment: The top of the slopes where they practice pluvial agriculture is more susceptible to soil erosion because of its steep slopes and the inappropriate cultivation techniques carried out there, is the area of higher prevalence of this technique. The production of Leucaena is used both for animal feed as a source for energy (firewood).

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

注释（项目类型等）:

It was introduced by FIDA project around 1990.

3.1 该技术的主要目的

• 改良生产
• 减少、预防、恢复土地退化
• 创造有益的经济影响

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): The loss of soil by runoff, influenced by its low coverage, reducing their fertility and their thickness
Major land use problems (land users’ perception): The loss of soil by runoff, low productive soils, low organic matter

3.3 有关土地利用的更多信息

每年的生长季节数:

• 1

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

• 改良的地面/植被覆盖
• 横坡措施

3.5 技术传播

注释:

Total area covered by the SLM Technology is 4.8 km2.
The technology is used, mostly in arid and semi arid zones, mainly in the sous bassins of the Godim. In sous bassins of Longueira has been increasingly important.

3.6 包含该技术的可持续土地管理措施

注释:

Type of vegetative measures: aligned: -linear

3.7 该技术强调的主要土地退化类型

注释:

Main causes of degradation: soil management (It is cultivated corn and peanuts on land slopes very pronounced and boot up the plants by the root in end of the cycle), disturbance of water cycle (infiltration / runoff) (There are many crusts exposed, because of loss of soil, reducing infiltration of water), poverty / wealth (Leads sensitized peoples to advocate action against the landscape for survival of the family), education, access to knowledge and support services (Knowledge and technical training increase the options for means of survival of the community that acts on the forest, the degree of attending school is low and the illiteracy rate is 17%)

Secondary causes of degradation: overgrazing (Creation of the wild animals compact the soil, destroying the structures for the conservation of soil and water exists, and creates conflict), Heavy / extreme rainfall (intensity/amounts) (Sometimes heavy rains (intensity) that occur associated with poor vegetation cover, increase soil erosion), governance / institutional (Lack of applicability of the laws that manage the land)

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

4.2 技术规范/技术图纸说明

Barreiras Vivas of Leucaena. Shows the coverage of the soil made by its roots.

Location: Praia. Cabo Verde

Technical knowledge required for field staff / advisors: moderate (It's needed sufficient knowledge to make a mark in level curves)
Technical knowledge required for land users: low

Main technical functions: stabilisation of soil (eg by tree roots against land slides), sediment retention / trapping, sediment harvesting
Secondary technical functions: control of raindrop splash, reduction of slope angle, reduction of slope length, increase in organic matter, increase of infiltration

Aligned: -linear
Vegetative material: T : trees / shrubs
Number of plants per (ha): 5000
Vertical interval between rows / strips / blocks (m): 2
Spacing between rows / strips / blocks (m): 3-5
Vertical interval within rows / strips / blocks (m): 0.4

Trees/ shrubs species: Leucaena leucocephala
Slope (which determines the spacing indicated above): 30-60%
Gradient along the rows / strips: 50%

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.	Market of the level curves(5 to 5m)	植物性的	June
2.	Planting	植物性的	end July

4.5 技术建立所需要的费用和投入

	对投入进行具体说明	单位	数量	单位成本	每项投入的总成本	土地使用者承担的成本%
劳动力	Labour	ha	1.0	171.85	171.85
设备	Tools	ha	1.0	62.5	62.5	100.0
植物材料	Seedlings	ha	1.0	3750.0	3750.0
技术建立所需总成本					3984.35

注释:

Duration of establishment phase: 2 month(s)

4.6 维护/经常性活动

	活动	措施类型	时间/频率
1.	Harvest of the leucaena fruits before theirs ripening	植物性的	1 time, in November
2.	Pruning	植物性的	1 time in April to May

4.7 维护/经常性活动所需要的费用和投入（每年）

	对投入进行具体说明	单位	数量	单位成本	每项投入的总成本	土地使用者承担的成本%
劳动力	Labour	ha	1.0	6.24	6.24	100.0
设备	Tools	ha	1.0	5.0	5.0	100.0
技术维护所需总成本					11.24

注释:

Machinery/ tools: Cavale used to level the surfaces; Knife; machete

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:

The cost of seedlings is the more diterminate cost, but the seedlings is produced by the project in arboretum, before de planting when it,s transplanted to the soil. The cust of the production in arboretum is more less than the seedlings cust.

5.1 气候

5.2 地形

关于地形的注释和进一步规范:

Altitudinal zone: 101-500 m a.s.l. (Ranked 1, this value belonging to the stratum semi-arid to sub-humid) and 501-1000 m a.s.l. (ranked 2, includes mainly the cliffs and ridges)
Landforms: Mountain slopes (ranked 1, technique applied to both concave and convex situations) and ridges (ranked 2, the hazards associeted of a convex situations, does not allow its application in)
Slopes on average: Steep (ranked 1, the SE-NE part of Ribeira Seca is the most sloping) and hilly (ranked 2)

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 depth on average: Very shallow (ranked 1, this depth is associated with the sloping hillsides used for rainfull agriculture) and shallow (ranked 2, found mainly in the valley bottoms of the downstream)
Soil texture: Medium (ranked 1, the soil texture varies with the physiographic position of the area. The Argyle decreases when climbs the slopes(15,4 to 15); the lime also decreases - fine lime (15,3 to 14,6), thick lime (11,0 to 9) and coarse/light (ranked 2, the soil overlay mainly basaltic rocks, piroclastic, conglomerates and aluvial deposits)
Soil fertility: Medium (ranked 1) and low (ranked 2)
Soil drainage/infiltration: Medium (ranked 1, It's compatness coefficient is 1,31) and good (ranked 2)
Soil water storage capacity: Medium

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: 5-50m (Ranked 1, in rain months, it is more superficial than in the dry months) and <50m (ranked 2)
Availability of surface water: Poor/none (It existe just when it's raining)
Water quality (untreated): poor drinking water (treatment required, salinization of water due to over exploitation of wells and boreholes, ranked 1) and good drinking water (ranked 2)

5.5 生物多样性

关于生物多样性的注释和进一步规范:

In the occidental side of the área, where the hotspot, the landscape is greener and much rich in species (fauna and flora). Nevertheless, on the side facing W or the oriental side, the ecosystems are

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:

Land users applying the Technology are mainly common / average land users
Population density: 200-500 persons/km2
Annual population growth: > 4%
(With income supirior than $10000 by year).
(Income more or equal than $7500 by year).
(Income equal or less than $3750 by year).
(Income less than $2000 by year).

Off-farm income specification: The land users who apply the technology are mostly exclarecidas and more young people than those who did not implement the technique
Market orientation: Subsistence (ranked 1, it's produced by the poors end very poor land users) and mixed (ranked 2, The majurity of thats production is maked by the richs end the average land users)
Level of mechanization: Manual labour (ranked 1, it's used the family manual labour to the farms works in subsistence production) and mechanised (ranked 2, it´s not much used because it's expensive, and so much land are not gatway to them)

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:

• 州
• 个人，有命名

土地使用权:

• 个人

用水权:

• 社区（有组织）
• 个人

注释:

The land uses is majurity esed by the sistem of rent a farm. Low percentage of owners, is land users of theirs area

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

收入和成本

社会文化影响

生态影响

水循环/径流

土壤

减少气候和灾害风险

其它生态影响

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？
局地风暴	好

气候灾害

	该技术是如何应对的？
干旱	未知

水文灾害

	该技术是如何应对的？
比较和缓的（河道）洪水	好

6.4 成本效益分析

技术收益与技术建立成本相比如何（从土地使用者的角度看）？

技术收益与技术维护成本/经常性成本相比如何（从土地使用者的角度看）？

注释:

The maintenance costs occur in the some time with the benefits of the tecnique are feeling by the land user

6.5 技术采用

如若可行，进行量化（住户数量和/或覆盖面积）:

375 households and 100% of the area covered

注释:

85% of land user families have adopted the Technology with external material support
320 land user families have adopted the Technology with external material support
Comments on acceptance with external material support: The maintenance costs occur in the some time with the benefits of the tecnique are feeling by the land user

15% of land user families have adopted the Technology without any external material support
53 land user families have adopted the Technology without any external material support
Comments on spontaneous adoption: Someone who have implimented the tecnology with external support, today, they make it in others parcels of land voluntarily, like some others that never receive any external support

There is a moderate trend towards spontaneous adoption of the Technology
Comments on adoption trend: There are some land users that don't like that tecnology, but 80% who implement it says that it's ggod and that thesecret is a good manegement

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
Stabilizes the soil, and increases the organic matter
Provides forage green almost all year for cattle. Once dead, produces firewood

编制者或其他关键资源人员认为的长处/优势/机会
Retencion of sidement
Soil stabilization and improvement of its structure

6.8 技术的弱点/缺点/风险及其克服方法

土地使用者认为的弱点/缺点/风险	如何克服它们？
Reduction in of the cultivation area , when the Leucaena invade the field.	Be always alert to the operations of Leucaenas punch.

编制者或其他关键资源人员认为的弱点/缺点/风险	如何克服它们？
Requires a strict maintenance, so that they are spread and infest the entire agricultural field	Technical assistance to farmers, warning them, through community radio stations, the arrival of the harvest season of the pods of Leucaena and the other cultural operations due
Its control is extremely difficult and costly in terms of resistance to the kind of garden and fire
It can generate conflict between users of adjacent land , because its propagacion is easy

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:

Cape Verde water and soil consevation/ Sabino, António Advino,1984

可以从哪里获得?成本如何?

Cape Verde

标题、作者、年份、ISBN:

Desertification at the Santiago Island, Desire, 2008

可以从哪里获得?成本如何?

Cape Verde

标题、作者、年份、ISBN:

QUIBB 2007, INE, 2007

可以从哪里获得?成本如何?

Cape Verde