Stone faced trench bund [埃塞俄比亚]
- 创建:
- 更新:
- 编制者: Unknown User
- 编辑者: –
- 审查者: Fabian Ottiger
Emni Getsel metrebawizala
technologies_991 - 埃塞俄比亚
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全部展开 全部收起1. 一般信息
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
关键资源人
SLM专业人员:
Dawit Michael
Ministry of Agriculture and Natural Resources
Adet Naedir woreda office of agriculture and natural resources, Adet Naeder, Tigray, Ethiopia
埃塞俄比亚
有助于对技术进行记录/评估的机构名称(如相关)
Ministry of Agriculture and Natural Resources of Ethiopia (MoA) - 埃塞俄比亚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. SLM技术的说明
2.1 技术简介
技术定义:
It is an allignment of stones embankment at the lower/downslope of the trench dug to form earth embankment following a contour.
2.2 技术的详细说明
说明:
Description: digging of foundation, stone wall constructionof 60-80 m, digging of trench along the contour Purpose: decrease soil erosion, moisture harvesting, decrease slope length, reduce runoff velocity and increase productivity per unit area Establishment/Maintenance: planting of fodder trees and integrate with biological measures Environment: enhance to grow natural grasses and vegetation, minimize desertification, recharge ground water and improve local climate
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
国家:
埃塞俄比亚
区域/州/省:
Tigray
有关地点的进一步说明:
Adet Naedir
Map
×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):
Developed in the region
3. SLM技术的分类
3.2 应用该技术的当前土地利用类型
农田
- 一年一作
主要农作物(经济作物及粮食作物):
Major cash crop: Teff, maize, sorghum
Major food crop: Lentile, flux, niger seed, beans
森林/林地
产品和服务:
- 木材
- 薪材
- 放牧/啃牧
- 自然保持/保护
注释:
Major land use problems (compiler’s opinion): Decline of soil fertility and productivity, soil erosion, deforestation, overgrazing
Major land use problems (land users’ perception): Decrease in production, low moisture content of the soil, drought and deforestation
Plantation forestry: deforestation
Problems / comments regarding forest use: Basically the forest land is open wood/shrub cover and used for grazing/browsing at the same time
Ge: Extensive grazing land
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
每年的生长季节数:
- 1
具体说明:
Longest growing period in days: 120Longest growing period from month to month: Jun - Oct
3.4 该技术所属的SLM组
- 横坡措施
3.5 技术传播
注释:
Total area covered by the SLM Technology is 32 m2.
This data is based on the Adet Naedir office of Agriculture and Natural Resources
3.6 包含该技术的可持续土地管理措施
农艺措施
- A6:其它
注释:
Main measures: structural measures
Secondary measures: agronomic measures, vegetative measures
Type of agronomic measures: better crop cover, manure / compost / residues, mineral (inorganic) fertilizers, contour tillage
Type of vegetative measures: aligned: -contour
3.7 该技术强调的主要土地退化类型
土壤水蚀
- Wt:表土流失/地表侵蚀
- Wg:冲沟侵蚀/沟蚀
化学性土壤退化
- Ca:酸化
注释:
Main type of degradation addressed: Wt: loss of topsoil / surface erosion
Secondary types of degradation addressed: Wg: gully erosion / gullying, Ca: acidification
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
- 修复/恢复严重退化的土地
注释:
Main goals: mitigation / reduction of land degradation
Secondary goals: rehabilitation / reclamation of denuded land
4. 技术规范、实施活动、投入和成本
4.2 技术规范/技术图纸说明
Technical knowledge required for field staff / advisors: moderate
Technical knowledge required for land users: low
Main technical functions: control of dispersed runoff: retain / trap, increase / maintain water stored in soil
Secondary technical functions: reduction of slope length, increase of infiltration, water harvesting / increase water supply
Better crop cover
Material/ species: teff, sorghum
Agronomic measure: row planting
Material/ species: maize
Quantity/ density: 45,000/ha
Remarks: planting on rows along the contour
Contour tillage
Remarks: farmers plow their land along the contour
Aligned: -contour
Vegetative material: T : trees / shrubs, G : grass
Number of plants per (ha): 100-150
Vertical interval between rows / strips / blocks (m): 1m
Spacing between rows / strips / blocks (m): 20-25m
Vertical interval within rows / strips / blocks (m): 2.5 m
Width within rows / strips / blocks (m): 1
Trees/ shrubs species: leucanea, sesbanea
Grass species: local grasses
Slope (which determines the spacing indicated above): 12.00%
Gradient along the rows / strips: 12.00%
Bund/ bank: level
Vertical interval between structures (m): 1
Spacing between structures (m): 20-25m
Depth of ditches/pits/dams (m): 0.3m
Width of ditches/pits/dams (m): 0.5m
Height of bunds/banks/others (m): 0.5-0.75m
Width of bunds/banks/others (m): 1m
Length of bunds/banks/others (m): 60-80m
Structural measure: bund / bank: level
Vertical interval between structures (m): 1m
Spacing between structures (m): 20-25m
Height of bunds/banks/others (m): 0.5-0.75m
Width of bunds/banks/others (m): 0.5-0.75m
Length of bunds/banks/others (m): 0.5-0.75m
Slope (which determines the spacing indicated above): 12%
Lateral gradient along the structure: 0%
Vegetation is used for stabilisation of structures.
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):
Birr
注明美元与当地货币的汇率(如相关):1美元=:
8.0
注明雇用劳工的每日平均工资成本:
0.88
4.4 技术建立活动
活动 | 措施类型 | 时间 | |
---|---|---|---|
1. | seedling production | 植物性的 | Dec.-June |
2. | seedling planting | 植物性的 | June-July |
3. | collection of stones | 管理 | dry season |
4. | placing of stones | 管理 | dry season |
5. | digging of trench | 管理 | dry season |
6. | embanking of soil | 管理 | dry season |
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 | 118.0 | 118.0 | 100.0 |
设备 | Animal traction | ha | 1.0 | 20.0 | 20.0 | 100.0 |
设备 | Tools | ha | 1.0 | 2.0 | 2.0 | 100.0 |
植物材料 | Seeds | ha | 1.0 | 6.25 | 6.25 | 100.0 |
肥料和杀菌剂 | Fertilizer | ha | 1.0 | 33.75 | 33.75 | 100.0 |
其它 | Other cost | ha | 1.0 | 17.5 | 17.5 | 100.0 |
技术建立所需总成本 | 197.5 |
注释:
Duration of establishment phase: 48 month(s)
4.6 维护/经常性活动
活动 | 措施类型 | 时间/频率 | |
---|---|---|---|
1. | plowing | 农业学的 | March-July / 3-4 times |
2. | sowing | 农业学的 | June-July / Once |
3. | Weeding | 农业学的 | July-August / twice |
4. | harvest | 农业学的 | Oct.-Dec. / once |
5. | Replanting | 植物性的 | July /once |
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 | 10.5 | 10.5 | 100.0 |
技术维护所需总成本 | 10.5 |
注释:
Machinery/ tools: crawbar, hammer, shovel, digging hoe
length of the structure and tree seedlings per hectar
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:
labour, slope
5. 自然和人文环境
5.1 气候
年降雨量
- < 250毫米
- 251-500毫米
- 501-750毫米
- 751-1,000毫米
- 1,001-1,500毫米
- 1,501-2,000毫米
- 2,001-3,000毫米
- 3,001-4,000毫米
- > 4,000毫米
指定年平均降雨量(若已知),单位为mm:
550.00
农业气候带
- 半湿润
- 半干旱
Semi arid covers larger area
5.2 地形
平均坡度:
- 水平(0-2%)
- 缓降(3-5%)
- 平缓(6-10%)
- 滚坡(11-15%)
- 崎岖(16-30%)
- 陡峭(31-60%)
- 非常陡峭(>60%)
地形:
- 高原/平原
- 山脊
- 山坡
- 山地斜坡
- 麓坡
- 谷底
垂直分布带:
- 0-100 m a.s.l.
- 101-500 m a.s.l.
- 501-1,000 m a.s.l.
- 1,001-1,500 m a.s.l.
- 1,501-2,000 m a.s.l.
- 2,001-2,500 m a.s.l.
- 2,501-3,000 m a.s.l.
- 3,001-4,000 m a.s.l.
- > 4,000 m a.s.l.
关于地形的注释和进一步规范:
Landforms: Hill slopes coer a larger area of the woreda but there are also footslopes and plateaus/plains
Slopes on average: Also Rolling and moderate
5.3 土壤
平均土层深度:
- 非常浅(0-20厘米)
- 浅(21-50厘米)
- 中等深度(51-80厘米)
- 深(81-120厘米)
- 非常深(> 120厘米)
土壤质地(表土):
- 中粒(壤土、粉土)
表土有机质:
- 中(1-3%)
- 低(<1%)
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: Also very shallow and moderately deep
Soil texture: Also coarse/light and fine/heavy
Soil fertility is low. Also very low and medium
Topsoil organic matter: Low (this data is based of physical observation on crop performance)
Soil drainage/infiltration is medium. Also good and poor
Soil water storage capacity is low. Also medium, very low.
5.6 应用该技术的土地使用者的特征
生产系统的市场定位:
- 生计(自给)
非农收入:
- 低于全部收入的10%
相对财富水平:
- 贫瘠
- 平均水平
机械化水平:
- 手工作业
- 畜力牵引
说明土地使用者的其他有关特征:
Population density: 100-200 persons/km2
Annual population growth: 2% - 3%; 3%
10% of the land users are rich and own 15% of the land.
40% of the land users are average wealthy and own 45% of the land.
30% of the land users are poor and own 25% of the land.
20% of the land users are poor and own 15% of the land.
Off-farm income specification: daily labourer in town, food for work
Level of mechanization: Manual labour and animal traction (oxen plow)
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
- < 0.5 公顷
- 0.5-1 公顷
- 1-2 公顷
- 2-5公顷
- 5-15公顷
- 15-50公顷
- 50-100公顷
- 100-500公顷
- 500-1,000公顷
- 1,000-10,000公顷
- > 10,000公顷
注释:
Cropland: Average land holding is 0.5 ha.
Forest/woodland per household: 0.5- 1 ha (most of the forest/bush lands are owned communally, but some farmers owned their own woodlots, 0.25ha per household)
5.8 土地所有权、土地使用权和水使用权
土地所有权:
- 州
土地使用权:
- 自由进入(无组织)
- 个人
6. 影响和结论性说明
6.1 该技术的现场影响
社会经济效应
生产
作物生产
饲料生产
饲料质量
木材生产
生产区域
土地管理
收入和成本
农业收入
工作量
社会文化影响
社区机构
国家机构
SLM/土地退化知识
生态影响
土壤
土壤水分
注释/具体说明:
Can lead to waterlogging
土壤覆盖层
土壤流失
其它生态影响
Biodiversity
Soil fertility
Increased input constraints
6.2 该技术的场外影响已经显现
旱季稳定可靠的水流
下游洪水
下游淤积
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)?
短期回报:
积极
长期回报:
非常积极
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)?
短期回报:
积极
长期回报:
积极
6.5 技术采用
注释:
100% of land user families have adopted the Technology without any external material support
109035 land user families have adopted the Technology without any external material support
Comments on spontaneous adoption: survey results
There is a moderate trend towards spontaneous adoption of the Technology
Comments on adoption trend: some individual farmers are applying the technology on their farm land by their own.
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 productivity How can they be sustained / enhanced? continous maintenance, |
increase soil fertility How can they be sustained / enhanced? integrate biological SWC measures |
increase fodder availability How can they be sustained / enhanced? planting of fooder trees and grass species on the enbankments |
编制者或其他关键资源人员认为的长处/优势/机会 |
---|
decrease soil erosion How can they be sustained / enhanced? By integrating area closure on the up slopes and incorporate biological SWC |
moisture harvesting |
increase production |
enhance vegetation growth |
decrease runoff velocity |
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? |
---|---|
loss of cultivated land | increase the land productivity by incorporating biological measures in the system |
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? |
---|---|
labour intensive | mobilization of the community |
hinder farm operation | enlarge the spacing between bunds |
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