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）

Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH (GIZ) - 德国

1.3 关于使用通过WOCAT记录的数据的条件

（现场）数据是什么时候汇编的？:

01/07/2012

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:

A micro-irrigation system to use water more efficiently and increase yields

2.2 技术的详细说明

说明:

A Californian network is a micro-irrigation system developed in California. The system, which is adapted to work with Malian irrigation systems, uses a pump unit that feeds in water from a river or borehole. The Californian system uses PVC sanitation piping with a diameter of 63 millimetres, sunk 50 centimetres underground.
Technical characteristics of the irrigation system: Pumping: a 3.5-horse-power pump unit with a lifespan of five years and throughput of 36 cubic metres per hour at an average height of 30 metres; fuel consumption: 1 to 1.3 litres of petrol per hour; PVC sanitation piping; two hydrants functioning as water intakes and equipped with Φ50 hose couplings; connection parts (tees, elbows, couplings, reducers); distribution using water jets.

The technical objective is to use water more efficiently and increase yields.
The technique is already used by other developers without the support of PCDA. Yields increase – for example, demonstration plots produce 15 tonnes of potato per hectare compared to 10 tonnes per hectare on control plots. Water consumption is reduced along with pumping costs. The system requires less person-hours and generates higher revenues.

Implementation: Identification of sites either by (i) identifying a demonstration plot in a controlled environment or (ii) identifying plots and developers in the rural environment. In a controlled environment: developers come and visit a demonstration scheme; interested parties submit applications to PCDA; applications are reviewed (conditions: be an actor in a relevant sector, be able to provide staff, have at least three years direct professional experience, and be keen to adopt the innovations put forward by PCDA); PCDA visits sites to assess whether the land is suitable; consultants (study and oversight structures) are contracted to draw up project plans (PCDA funds the consultancy); projects are submitted for approval to the Regional Committee for the Approval of Projects, comprising the governor, banks, consultants, interbranch organisations; following the Committee’s approval, SME or large company projects must then be approved by the National Committee for the Approval of Projects in Bamako – very small businesses are not affected by this step; selected developers are informed and must then pay their contribution; the individual plots are developed – for small projects (5 to 15 million CFA francs) 75% of the investment is given in the form of a PCDA grant; mid-size projects (15 to 50 million CFA francs) receive 50% of PCDA grant, the remainder is provided through bank loans. Large companies receive 75% of the consultancy work (maximum 30 million CFA francs) as PCDA subsidy; a partnership agreement is set up with the Regional Directorate of Agriculture and the Rural Economy Institute to monitor the project; the Rural Economy Institute draws up the demonstration protocols and conducts the monitoring of demonstrations (data collection); PCDA and the consultancies deliver training, provide support and carry out monitoring.
Operation: an agricultural calendar is drawn up; the consultancies provide support throughout the project; consultancies deliver their monitoring reports; local craftspeople are trained in upkeep and repair. The piping has a lifespan of five years.
PCDA promotes innovation, subsidises funding, provides support and conducts evaluation activities. Consultancies conduct studies, take charge of monitoring and reporting, and support developers. Banks/microfinance organisations provide co-financing and loans, and train up developers. Developers part-fund training activities and implement the project.

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:

• 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:

• 通过项目/外部干预

注释（项目类型等）:

Since 2005

3.1 该技术的主要目的

• 改良生产

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): inefficient use of irrigation water

3.3 有关土地利用的更多信息

该技术所应用土地的供水:

• 混合雨水灌溉

每年的生长季节数:

• 1

具体说明:

Longest growing period in days: 120; Longest growing period from month to month: August-November

牲畜密度（如相关）:

1-10 LU /km2

3.4 该技术所属的SLM组

• 灌溉管理（包括供水、排水）

3.5 技术传播

注释:

Five schemes in place in Sikasso town and ten more in the vicinity

3.6 包含该技术的可持续土地管理措施

注释:

Specification of other structural measures: micro-irrigation system

3.7 该技术强调的主要土地退化类型

注释:

Main causes of degradation: over abstraction / excessive withdrawal of water (for irrigation, industry, etc.)

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:

• 修复/恢复严重退化的土地

4.2 技术规范/技术图纸说明

Technical knowledge required for field staff / advisors: high
Technical knowledge required for land users: low
Main technical functions: increase / maintain water stored in soil, water harvesting / increase water supply, promotion of vegetation species and varieties (quality, eg palatable fodder)
Secondary technical functions: increase of groundwater level / recharge of groundwater, increase of biomass (quantity)
Structural measure: micro-irrigation system

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）:

CFA Franc

注明美元与当地货币的汇率(如相关):1美元=:

517.0

4.4 技术建立活动

	活动	措施类型	时间
1.	Identification of sites	结构性的
2.	developers come and visit a demonstration scheme	结构性的
3.	consultants are contracted to draw up project plans	结构性的
4.	approval of projects	结构性的
5.	selected developers are informed and must then pay their contribution; the individual plots are developed	结构性的
6.	an agricultural calendar is drawn up	结构性的

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%
其它	Total construction		1.0	313049.0	313049.0	100.0
技术建立所需总成本					313049.0

4.6 维护/经常性活动

	活动	措施类型	时间/频率
1.	local people are trained in upkeep and repair	结构性的

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:

Costs and cost effectiveness of the good practice
Potato: production value – 300,000 CFA francs (582 Dollar); cost of production – 161,125,000 CFA francs (313'049 Dollar); profit – 146,125 CFA francs (283 Dollar)

5.1 气候

5.2 地形

5.3 土壤

5.4 水资源可用性和质量

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: < 10 persons/km2
Annual population growth: 2% - 3%
10% of the land users are rich.
50% of the land users are average wealthy.
30% of the land users are poor.
10% of the land users are very poor.

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

注释:

The irrigated land is allocated by the chief

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

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

气候灾害

	该技术是如何应对的？
干旱	好

水文灾害

	该技术是如何应对的？
比较和缓的（河道）洪水	好

其他气候相关的后果

其他气候相关的后果

	该技术是如何应对的？
缩短生长期	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）？

6.5 技术采用

注释:

There is a moderate trend towards spontaneous adoption of the Technology
There has been a good level of replication of the Californian network.

6.7 该技术的优点/长处/机会

编制者或其他关键资源人员认为的长处/优势/机会
Yields increase–demonstration plots produce 15 tonnes of potato per hectare compared to 10 tonnes per hectare on control plots. Water consumption is reduced along with pumping costs. The system requires less person-hours and generates higher revenues.
The technique is already used by other developers without the support of PCDA.

6.8 技术的弱点/缺点/风险及其克服方法

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？
It is essential for developers to have funds available for their contribution. The cost of projects is often underestimated, which leads to delays in implementation.

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:

Manual of Good Practices in Small Scale Irrigation in the Sahel. Experiences from Mali. Published by GIZ in 2014.

可以从哪里获得?成本如何?

http://star-www.giz.de/starweb/giz/pub/servlet.starweb

标题、作者、年份、ISBN:

Technical and economic reference document: Irrigation de la pomme de terre par aspersion à partir d’un réseau californien [Irrigating potato crops using sprinklers fed by a Californian Network], April 2009