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

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

2.1 技术简介

技术定义:

It is a barrier of stone/wood/earth placed across a gully to control runoff and sediment passing through.

2.2 技术的详细说明

说明:

A checkdam constructed from stone, wood or branches of trees. It has an average height of 1m and is spaced at 1m vertical interval. The purpose is to reclaim gully lands to productive lands by controllong the rate of runoff and trapping the soil. By plugging the gully using different checkdams the gully gradient is brought to a gentle slope and flow rates and soil movment is regulated. Constructing of checkdam in a gully starts with smaller checkdams which are regularly maintained and up graded of their heights. Gully plugging by checkdams and vegetative material is suitable to all agro-climatic conditions but the choice of material for establishment depends on the availability of material in the nearby and rate of flow. For a high rate and volume of flows stone checkdams are prefered to wooden or earth chekdams.

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:

• 50多年前（传统）

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）:

Introduced to the country about 30 years ago from other countries exprience.

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

同一土地单元内混合使用的土地：:

是

具体说明混合土地使用（作物/放牧/树木）:

• 农林牧业

注释:

Major land use problems (compiler’s opinion): Open grazing, bare land, high erosion risk

Major land use problems (land users’ perception): land slide, erosion

Nomadism: Yes

Grazingland comments: grazing lands are replaced by other land use system or degraded irreversibly and also the number and productivity of livestock is reduced due to shortage of feed and fodder.

Other type of forest: selective felling of natural forests: charcoal

Problems / comments regarding forest use: The communities assigned guards for area closures in order to protect them from illegal cutting and conversion to other land uses. Government or projects used to employ site guards for protecting the enclosures at the initial stage. When the communities started to get benefit from enclosures then decided to take responsibility to protecting them.

Forest products and services: fuelwood, grazing / browsing, protection against natural hazards

Type of cropping system and major crops comments: Barley-teff

Constraints of settlement / urban

Constraints of infrastructure network (roads, railways, pipe lines, power lines)

3.4 供水

该技术所应用土地的供水:

• 雨养

3.5 该技术所属的SLM组

• 横坡措施
• 地表水管理（泉、河、湖、海）

3.6 包含该技术的可持续土地管理措施

注释:

Main measures: structural measures

Secondary measures: vegetative measures

Type of vegetative measures: scattered / dispersed

3.7 该技术强调的主要土地退化类型

注释:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion

Secondary types of degradation addressed: Wg: gully erosion / gullying, Cn: fertility decline and reduced organic matter content

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:

• 减少土地退化

注释:

Secondary goals: prevention of land degradation, rehabilitation / reclamation of denuded land

4.1 该技术的技术图纸

4.2 有关投入和成本计算的一般信息

其它/国家货币（具体说明）:

Birr

如相关，注明美元与当地货币的汇率（例如1美元=79.9巴西雷亚尔）：1美元=:

8.6

4.3 技术建立活动

	活动	时间（季度）
1.	collect planting materials	onset of rain
2.	planting	during rain
3.	construction	dry season/after crop harvest
4.	fencing	dry season/after crop harvest
5.	Stone collection	January-March
6.	gully reshaping	January-March
7.	dig foundation	dry season/after crop harvest
8.	Fencing (live or wood)	dry season

4.5 维护/经常性活动

	活动	时间/频率
1.	replanting	rainy season /as required
2.	fencing	dry season /once
3.	stone collection	as required
4.	construction	as required
5.	maintaining breaks in fence	dry season / as required

4.6 维护/经常性活动所需要的费用和投入（每年）

注释:

Length and width of the structure.

4.7 影响成本的最重要因素

描述影响成本的最决定性因素:

slope, labour, time of cost recovery payment (period), width (length) of the gully, availability of construction materials.

5.1 气候

5.2 地形

关于地形的注释和进一步规范:

Altitudinal zone: It ranges between 1500-4033 m a.s.l.
Landforms: Mountain slopes (ranked 1), ridges (ranked 2) and plateau/plains as well as hill slopes (both ranked 3)
Slopes on average: Hilly (ranked 1), steep (ranked 2) and rolling (ranked 3)

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 (More in hilly slopes/steep slopes, ranked 1) and shallow (on rolling areas, ranked 2)
Soil texture: Fine/heavy (At gentle slopes, ranked 1), medium (rolling slopes, ranked 2) and coarse/ light (at the bottom of the gully)
Soil fertility: Medium (ranked 1), low (ranked 2) and high (ranked 3)
Topsoil organic matter is low (continuous cropping and erosion)
Soil drainage/infiltration is medium (steep slopes , ranked 1) and good (ranked 2)
Soil water storage capacity is medium (ranked 1) and high (clay soils, ranked 2)

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: 200-500 persons/km2
Annual population growth: 2% - 3%
60% of the land users are poor and own 30% of the land.
40% of the land users are poor and own 20% of the land.
Off-farm income specification: No apparent differences could be observed.
Level of mechanization is aniaml traction (ploughing using oxen, horses and cow, ranked 1) and human labour (digging by hoe, ranked 2)
Market orientation of production system: Also mixed (subsistence/ commercial), subsistence in agro-silvopastoralism (farm implements, feul, charcoal)

5.7 应用该技术的土地使用者使用的平均土地面积

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，未命名

土地使用权:

• 个人

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

其它生态影响

6.2 该技术的场外影响已经显现

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）？

6.5 技术采用

在所有采用这项技术的人当中，有多少人是自发的，即未获得任何物质奖励/付款？:

• 91-100%

注释:

35 land user families have adopted the Technology without any external material support

There is a little trend towards spontaneous adoption of the Technology

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
Soil erosion control and prevention of gully expansion.
sources of fodder How can they be sustained / enhanced? plant more forage trees

编制者或其他关键资源人员认为的长处/优势/机会
Fodder production and soil formation rate enhanced How can they be sustained / enhanced? make frequent maintenance
Moisture and water harvesting enhanced How can they be sustained / enhanced? plant useful trees/ nitrogen fixing trees

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？
rodents

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:

Ethiopia Federal RDS, Rural Rural Development policy Strategy and Methods. 2001.

标题、作者、年份、ISBN:

Soil and water management manual, Alemaya. 2003.