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/评估的项目名称（如相关）

Catastrophic shifts in drylands (EU-CASCADE)

有助于对技术进行记录/评估的机构名称（如相关）

Technical University of Crete (Technical University of Crete) - 希腊

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:

Integration of a cement pan and collection well system for water harvesting and a trough serving as a livestock water point.

2.2 技术的详细说明

说明:

An area of around 100 m² built out of cement or similar impermeable material forms an artificial watershed that drains into a well or tank, depending on landscape slope and system configuration. The well/tank, also made of cement to reduce losses due to infiltration, is covered in order to prevent water evaporation during the dry season. Its size depends on configuration and is ca. 40 m³. A detachable pumping system is used to draw water into a trough that is part of the permanent structure in a convenient location of the well or pan. The quality of water is maintained by keeping the collection area isolated from livestock using a removable chain-link fence placed on permanent metal poles. A grate is also installed at the opening of the well/tank to filter debris.

Purpose of the Technology: This system is installed in remote locations with poor access to fresh water. The water harvesting system collects water during the winter rains and snowfalls for use during the dry season. The trough of the system serves as a watering point for the user's livestock. This way the user can reduce the need of water transportation for his livestock, usually involving additional labor and transportation costs.
Besides the practical use of the water harvesting system, several functions are served with this installation. The existence of a source of soil moisture can cause a marked change in an otherwise very dry environment. Frequently these structures are jointly owned thus creating a sense of community among pastoralists.

Establishment / maintenance activities and inputs: Depending on initial slope, the water storage structure is designed. In relatively flat areas a well is dug and lined, whereas steeper slopes can be profited from by building part of the collection structure above ground. The later solution has a reduced cost and may also allow water extraction with natural flow. The technology can also be applied to extend the use of traditional wells by adding the rest of the structures. Exact sizing can be specified to allow storage of 10-20% over the average wet season precipitation in the area. After slope preparation, the collection structure, cement watershed and trough are constructed. The system is best established during autumn where temperature extremes that can make concrete curing difficult are less frequent. During the dry season, water can be extracted either by natural flow or a vacuum pump and channeled directly into the water point. Typically the cement structure and pumping system require little maintenance.

Natural / human environment: The harvesting system is best installed where the annual precipitation amount is sufficient but availability is hindered by seasonality, i.e. little natural storage exists and dry seasons yield little or no precipitation. The system is also most useful in remote locations with little or no access to water. Nevertheless, for the systems that require mechanical pumping, the location needs to be accessible by utility vehicle carrying relevant equipment and power supply.

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）:

The storage of the specific water harvesting system is part of a traditional well constructed around 1870 and the rest of the structures where added during the 90s though initiatives of the municipality.

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:

Number of growing seasons per year: 1
Longest growing period in days: 298Longest growing period from month to month: 271-353
Livestock density: 50-100 LU /km2

Major land use problems (compiler’s opinion): precipitation seasonal variability causing water availability shortage during dry summers

Semi-nomadism / pastoralism: sheep/ goats

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

3.6 包含该技术的可持续土地管理措施

注释:

Main measures: structural measures

Specification of other structural measures: well and watering point

3.7 该技术强调的主要土地退化类型

注释:

Main type of degradation addressed: Ha: aridification

Secondary types of degradation addressed: Hs: change in quantity of surface water

Main causes of degradation: droughts

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

注释:

Main goals: mitigation / reduction of land degradation

Secondary goals: prevention of land degradation

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）:

euro

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=:

0.77

4.3 技术建立活动

	活动	时间（季度）
1.	Field preparation
2.	Well digging
3.	Building of cement well cover
4.	Laying of concrete pan for water/snow collection	Installation
5.	Installation of pumping tube
6.	Installation of cement watering point
7.	Fence installation
8.	Pump acquisition

4.4 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	Dam	1.0	2865.0	2865.0	100.0
设备	Machine use	Dam	1.0	580.0	580.0	100.0
施工材料	Chain-link fence	Dam	1.0	325.0	325.0	100.0
施工材料	Concrete	Dam	1.0	3270.0	3270.0	100.0
施工材料	Cement pipes	Dam	1.0	1940.0	1940.0	100.0
施工材料	Pum	Dam	1.0	390.0	390.0	100.0
技术建立所需总成本					9370.0
技术建立总成本，美元					12168.83

4.5 维护/经常性活动

	活动	时间/频率
1.	Pump maintenance	once a year

4.6 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	Dam	1.0	50.0	50.0
技术维护所需总成本					50.0
技术维护总成本，美元					64.94

注释:

Costs were calculated for the construction of a well in 2014 for an easily accessible location. Nevertheless, the specific system is built around a traditional well thus its actual cost was lower.

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:

Costs mainly depend on the well/tank contraction and the accessibility of the construction area (slope, proximity to road network, etc.)

5.1 气候

5.2 地形

关于地形的注释和进一步规范:

Landforms: On hill slopes configuration may differ, may not require pumping equipment
Slopes on average: Hilly (16-30%) configuration may change, may not require pump

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 fertility is low
Soil drainage/infiltration is medium
Soil water storage capacity is very low

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:

Land users applying the Technology are mainly common / average land users

Population density: < 10 persons/km2

Annual population growth: 0.5% - 1%

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:

• 个人，未命名
• 个人，有命名

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

水资源可用性和质量

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	增加或减少	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）？

注释:

Initially, installation costs produce negative returns. Nevertheless the system requires little maintenance and the benefits emerge very soon, even after the first winter when the well has stored rain and snow water. As fuel expenses and human capital commitment for the transportation of water are significant, benefits predominate establishment costs within 2-3 years and maintenance / recurrent costs from the first year.

6.5 技术采用

如若可行，进行量化（住户数量和/或覆盖面积）:

3

注释:

3 land user families have adopted the Technology with external material support

Comments on acceptance with external material support: The current trend is that traditional wells are converted to an integrated water harvesting system with external support from the municipality, thus foregoing the well construction costs.

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
Decreases workload and costs during the dry season. How can they be sustained / enhanced? Workload and overall costs can be enhanced by increasing the density of water harvesting systems.

编制者或其他关键资源人员认为的长处/优势/机会
Increases water availability for livestock during the dry season, promotes sustainable grazing. How can they be sustained / enhanced? Water availability can be sustained by promoting sustainable management of other grazing practices, e.g. maintaining a healthy LU/area ratio.
The system is decentralised and requires little maintenance.

7.1 信息的方法/来源