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:

Enlarged ditch/channels that are not graded in order to collect and retain runoff from road/school (External Catchments)

2.2 技术的详细说明

说明:

A soil bund for soil erosion reduction. Achieved by excavation of ungraded channels which are used for runoff collection.

Purpose of the Technology: reduce soil erosion, collect and retain road runoff (Water Harvesting), Growing of bananas, sugarcane, grass, enhance crop production through reduction of loss of fertile soil and moisture conservation.

Establishment / maintenance activities and inputs: Establishment - Soil excavation (More than conventional recommendation) Grass planting for stabilization. Maintenance - repair of broken sections, de-siltation of the channels.

Natural / human environment: Semi - arid area where rainfall is usually inadequate for good crop performance

2.5 已应用该技术的、本评估所涵盖的国家/地区/地点

国家:

肯尼亚

区域/州/省:

Eastern Province

具体说明该技术的分布:

• 均匀地分布在一个区域

如果技术均匀分布在一个区域，则指定覆盖的区域（单位为平方千米）:

0.052

注释:

Total area covered by the SLM Technology is 0.052 km2.

The area is based on one individual farm - Mr. Musyoka Muindu

Map

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2.6 实施日期

如果不知道确切的年份，请说明大概的日期:

• 不到10年前（最近）

2.7 技术介绍

详细说明该技术是如何引入的:

• 通过土地使用者的创新

注释（项目类型等）:

From SWC Extension Specialists

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

农田

• 一年一作
• 多年一作（非木材）

年作 - 具体指明作物:

• 饲料作物 - 草

多年生（非木质）作物 - 指定作物:

• 香蕉/芭蕉/蕉麻
• 甘蔗

每年的生长季节数:

• 2

具体说明:

Longest growing period in days: 90 Longest growing period from month to month: Oct - Jan Second longest growing period in days: 60Second longest growing period from month to month: Mar - May

注释:

Perennial crops species: Banana and sugarcane
Grass species: Panicum colorutum makariensis

Major land use problems (compiler’s opinion): Erosion by water due to the erratic nature of the low crop yields, inadequate moisture for crop production

Major land use problems (land users’ perception): Soil erosion by water, low crop yields, Food insecurity.

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

• 集水
• 引水和排水

3.6 包含该技术的可持续土地管理措施

植物措施

• V2：草和多年生草本植物

结构措施

• S3：分级沟渠、渠道、水道

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

化学性土壤退化

• Cn：肥力下降和有机质含量下降（非侵蚀所致）

水质恶化

• Ha：干旱化

注释:

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

Secondary types of degradation addressed: 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

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）:

Kenya shillings

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=:

70.0

4.3 技术建立活动

4.4 技术建立所需要的费用和投入

注释:

Duration of establishment phase: 36 month(s)

4.5 维护/经常性活动

4.6 维护/经常性活动所需要的费用和投入（每年）

注释:

length of structures - 40m, spacing between structures - 18m, no of terraces per ha - 13, total no of metres = 13*40 = 540 of excavation

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:

Soil depth - soils with a hardpan are more expensive to excavate. Labour - cost varies with seasons

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 texture: The soil is a mixture of sand and loam (sandy loam)

Soil fertility is low - medium

Soil drainage / infiltration is good

Soil water storage capacity is medium

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: 10-50 persons/km2

Annual population growth: 2% - 3%

10% of the land users are rich and own 15% of the land.
25% of the land users are average wealthy and own 30% of the land.
40% of the land users are poor and own 25% of the land.
20% of the land users are poor and own 20% of the land.

Off-farm income specification: only a small proportion of the population is in formal employment

Level of mechanization: Use of oxen drawn plough for ploughing and weeding

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:

• 个人

6.1 该技术的现场影响

生态影响

水循环/径流

土壤

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

• 单例/实验

如若可行，进行量化（住户数量和/或覆盖面积）:

24 households in an area of 0.52 ha (The area is based on one individual farm - Mr. Musyoka Muindu)

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:

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

Comments on spontaneous adoption: estimates

There is a moderate trend towards spontaneous adoption of the Technology

Comments on adoption trend: land users have realised the importance of water harvesting under the semi arid conditions where crop performance is poor

7.1 信息的方法/来源