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）

Reabilitação de terras e gestão das áreas de pastagem nos sistemas de produção agro-pastoris dos pequenos produtores no sudoeste de Angola (RETESA)

有助于对技术进行记录/评估的机构名称（如相关）

FAO Angola (FAO Angola) - 安哥拉

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

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

2.1 技术简介

技术定义:

Rehabilitation of rangelands involves selection of key pasture and fodder species, and their reintroduction into strategic areas through stakeholder participation. The technology is also supported by communal management plans, which were created to address the root causes of land degradation.

2.2 技术的详细说明

说明:

This technology was developed and implemented through the RETESA Project “Land rehabilitation and rangelands management in smallholder agropastoral production systems in south-western Angola”. RETESA is a project owned and implemented by the Ministry of Environment of the Government of Angola, with technical and methodological assistance from The Food and Agriculture Organization of the United Nations (FAO), and financed by the Global Environment Facility (GEF).
Inappropriate grazing regimes and poor livestock management by pastoral communities in SW Angola have led to degradation of rangeland and pastoral resources, with perennial grassland species and shrubs having been effectively eliminated. This is despite the fact that the pastoral communities of the area know their environment extremely well and are aware of the land degradation happening around them. Under the project they identified crucial areas for rehabilitation works, selecting mostly areas around water points that have been in use both by local and transhumant herders. Through these works, the local community sought to (a) increase ground cover to reduce sediment loads entering waterways (erosion control), (b) provide shade for livestock, (c) increase forage production and (d) introduce legumes and multipurpose forage trees in areas of high animal traffic. A total of four areas in the Bibala and Virei Municipalities were identified for the activities.
The communities were closely involved in the selection and propagation of plant species for the rehabilitation works. The project field staff also ran field palatability trials with them to confirm that the plants selected met their expectations. These participatory trials were also aimed at enhancing their understanding of livestock nutrition and how it related to animal health. Once the species were chosen, seed was collected by the communities and the Project Technicians, and was multiplied in 32 Agro-Pastoral Field School Nurseries and 2 Government funded Veterinary Research Stations. A total of 15 species were identified, with the grasses Eragrostis superba, Urochloa mosambicensis, and the trees Acacia nilotica, Faidherbia albida, Leucaena leucocephala and Moringa oleifera being the most valued by the communities as forage and multipurpose species. The trees were germinated from seed with success. However, native grass species failed to germinate by standard methods - early field trials having ruled out direct seeding methods. Thus they were multiplied by root division of plants collected from cultivated fields. This avoided removal of grass from natural areas.
As the majority of the areas selected for the rehabilitation works were focused around water points and waterways, the soils were generally alluvial, sandy loams. Precipitation is highest in the areas to the north: it ranges from 600 mm in the upper areas of the Bibala Municipality to 200 mm in the areas to the south in Virei. In general, the vegetation communities could be described as dry sclerophyll woodlands with Colophospermum mopane being the dominant tree species, with forest cover decreasing in height and density as one moves south toward drier areas.
Through close collaboration with the participant communities, three rehabilitation methods were designed and improved upon throughout the Project's duration. Method 1 was used to plant open areas within the rehabilitation zone, Method 2 was employed to introduce and protect concentrated plantings of the selected species in strategic locations within the landscape, and Method 3 was preferred for the recuperation of riparian vegetation and to reduce sediment loads in waterways. The three methods used are described in more detail in the Technical Drawings. To increase the sense of ownership and thus the sustained effectiveness of the rehabilitation works, land management plans and other supporting activities were also carried out.

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:

• 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）:

The proposed project: “Land rehabilitation and rangelands management in smallholders’ agropastoral production systems in southwestern Angola” (RETESA) is a joint effort by the Ministério do Ambiente (MA), Ministério da Agricultura e do Desenvolvimento Rural e das Pescas (MINANDER), Governo Provincial do Namibe, Governo Provincial do Huila, and Governo Provincial de Benguela, together with FAO and GEF. In line with the GEF-5 Land Degradation strategy, the project’s goal is to create an enhanced enabling environment in the agricultural sector and a sustained flow of agro-ecosystem services.

3.1 该技术的主要目的

• 改良生产
• 减少、预防、恢复土地退化
• 保护生态系统
• 保持/提高生物多样性
• 降低灾害风险
• 适应气候变化/极端天气及其影响
• 减缓气候变化及其影响
• 创造有益的经济影响

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
Livestock density: Official data is not available and true livestock numbers are unknown.

3.3 由于技术的实施，土地使用是否发生了变化？

由于技术的实施，土地使用是否发生了变化？:

• 是（请在技术实施前填写以下有关土地利用的问题）

注释:

Crop land is increasing in the area as population increases and people move towards more sedimentary livelihoods.

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

• 畜牧业和牧场管理
• 改良的地面/植被覆盖

3.6 包含该技术的可持续土地管理措施

注释:

The management plans created at the community and administrative level identify a number of large areas which are to serve as 'Grazing Reverses' for the dry season. Therefore, the agreements call for all livestock to abandon the area at the onset of the first rains and not return until the Pastoral Management Forum agrees to open the area for grazing. Once open, the range is available to all pastoralists, those that live in the immediate area and those moving through on their transhumance migration.

3.7 该技术强调的主要土地退化类型

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

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

具体说明成本和投入是如何计算的:

• 每个技术单元

具体说明成本计算所用货币:

• 美元

4.3 技术建立活动

	活动	时间（季度）
1.	Meetings and field visits with participant communities to identify plant species and their uses	Best during growing season
2.	Further meetings to decide on which species are to be multiplied and arrange seed collection	Near end of growing season
3.	Seed collection and transportation	When seed is available (varies with species)
4.	Instalation of irrigation systems	Most communiites need a water extraction and distribution system to create nurseries
5.	Delivery of nursery supplies and instalation of shade cloth	Nurseries should have water access and shade
6.	Planting of seeds and care for seedlings at nursery	Formed part of Agro-Pastoral Farmer Field School activities
7.	Identification of planting areas and timing	Should be at beginning of rainy season, or when soil moisture permits
8.	Organisation of materials and tools	At least 1 week before the planting
9.	Planting day (preparation of planting holes and transplanting of seedlings)	2 days maximum was seen to be optimal
10.	Watering until the plants are established	Usually a maximum of 3 watering over 1 week after the plantings
11.	Follow up visits to make sure management agreements are being respected and plants are not being eaten by stock until they are ready	Plants should not be grazed for at least 6 months from planting time until they are well established

注释:

The activities and costs given were those needed to produce and plant 3,345 trees and grasses in the 4 rehabilitation areas. Given that 3,345 plants were produced at a cost of $3284.75, the cost per plant produced and planted in the field is $0.98. Seedlings available through local, government nurseries were $2.00 per unit, but only exotic ornamentals were available. However, it can be expected that in other contexts and locations, it would be cheaper to buy seedlings, instead of training communities and creating numerous small-scale nurseries, though clearly these communities will not ‘own’ the process as well as if they were involved from the beginning.

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	Project Technicians/Drivers/Consultants, etc	Person-days	30.0	20.0	600.0
劳动力	Plant identification activities and seed collection	Person-days	10.0	6.0	60.0	100.0
劳动力	Plant nursery creation and plant production	Person-days	16.0	6.0	96.0	100.0
劳动力	Participation during planting days	Person-days	25.0	10.0	250.0	90.0
设备	Vehicle	Trips	10.0	40.0	400.0
设备	Nursery supplies (including water system which also supplies water to Farmer Field School)	Materials	1.0	800.0	800.0	10.0
设备	Planting supplies (shovels, hoes, wheelbarrows, etc.)	Materials	1.0	120.0	120.0
设备	Other improvements to water point (fencing, cement blocks, cement, hoses, etc.)	Materials	1.0	250.0	250.0
设备	Maps (traced onto paper from projected images for management purposes)	Materials	1.0	10.0	10.0
设备	Food and Refreshments	Per person	25.0	2.5	62.5
肥料和杀菌剂	Manure (50 grams per sack, 12.500 sacks)	Kilos	625.0	0.25	156.25	100.0
施工材料	Shade-cloth	m2	320.0	1.5	480.0
技术建立所需总成本					3284.75
技术建立总成本，美元					3284.75

如果土地使用者负担的费用少于100%，请注明由谁负担其余费用:

Remaining costs were provided by the RETESA Project.

注释:

Production depends on the ability of the pastoral communities to produce viable plants. If they are unable to do so, then plants can be bought from Government funded nurseries, though costs per plant will most rise though it can substitute the need for having to purchase a water supply system. The total shown here reflects a percentage (16%) of the costs of installing a water system that supplied water to the whole of the Agro-Pastoral Farmer Field School. These systems usually included a 10,000 litre water tank, a gasoline water pump, extraction pipe and parts, 100 to 200 mts of 1.5" hoses and parts and 3 kms of drip irrigation hose.

4.5 维护/经常性活动

	活动	时间/频率
1.	Meetings to ensure management agreements are being respected.	Once every 3 to 6 months, especially before and after rainy season.
2.	Repairs and replacement of nursery supplies.	Once a year.
3.	Replanting of dead seedlings	Just before and during rainy season.

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	Visits to sites and tour of planting areas.	Person-days	4.0	20.0	80.0	50.0
劳动力	Driver.	Person-days	1.0	20.0	20.0
劳动力	Replanting of dead seedlings	Person-days	2.0	6.0	12.0	100.0
劳动力	Watering	Person-days	14.0	6.0	84.0	100.0
设备	Vehicle	Trips	1.0	40.0	40.0
设备	Watering cans and buckets	Materials	4.0	5.0	20.0
技术维护所需总成本					256.0
技术维护总成本，美元					256.0

如果土地使用者负担的费用少于100%，请注明由谁负担其余费用:

The RETESA Project provided an important part of both material and technical support to the communities, though the communities also contributed substantially.

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:

The activities and costs given were those needed to produce and plant 3,345 trees and grasses in the 4 rehabilitation areas. Given that 3.345 plants were produced at a cost of $3284.75, the cost per plant produced and planted in the field is $0.98. Seedlings avaliable through local, government nurseries were $2.00 per unit, but only exotic ornamentals were avaliable. However, it can be expected that in other contexts and locations, it would be cheaper to buy seedlings instead of training communities and creating numerous small scale nurseries, though clearly these communities will not appropriate the process as well as if they were involved from the beginning.

5.1 气候

5.2 地形

说明该技术是否专门应用于:

• 不相关

关于地形的注释和进一步规范:

Usually the planting are undertaken along river plains and river banks, as they are the only areas that have the necessary soil moisture to ensure survival of the seedlings.

5.3 土壤

5.4 水资源可用性和质量

水的盐度有问题吗？:

是

具体说明:

Many bores and wells cannot be used due to Salinity problems. Before planting, it is wise to make sure soil salinity is not problematic in areas identified.

该区域正在发生洪水吗？:

是

规律性:

偶然

关于水质和水量的注释和进一步规范:

Water quality and quantity are major issues for the area. There are few if any reliable water sources in the area and most communities depend on wells dug in the river bottoms to supply their water.

5.5 生物多样性

关于生物多样性的注释和进一步规范:

The area is devoid of most wild animals due to the years of war the country experienced during the second half of the 20th century.

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:

The communities are still traditional though are currently being influenced by the globalisation process.

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:

• 社区/村庄

土地使用权:

• 自由进入（无组织）

用水权:

• 自由进入（无组织）

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

社会文化影响

生态影响

水循环/径流

土壤

生物多样性:植被、动物

减少气候和灾害风险

6.2 该技术的场外影响已经显现

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？
年降雨量		减少	好
季雨量	春季	减少	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

• 单例/实验

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？:

• 0-10%

6.6 适应

最近是否对该技术进行了修改以适应不断变化的条件？:

否

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
Communities learn about plants' role in the wider ecosystem, how to select and multiply key fruit, fodder or timber species and should see an increase in their horticultural and livestock production, leading to improved nutrition or income.
Done properly, it can be a cost-effective and reliable way to produce the plants needed within family units.

编制者或其他关键资源人员认为的长处/优势/机会
When the plants are produced in collaboration with the local pastoral communities, the benefits are wide ranging, promoting everything from environmental awareness to technical and practical knowledge.
It remains a cost-effective way of improving key productive species and increasing community resilience.
Increasing biomass and introducing better management cycles contribute to reducing land degradation and improve nutrient and energy cycling.

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？
Can require stable supply of water, and labour costs can increase if water sources are not easily accessible.	Locate nurseries near reliable and accessible water sources.
Can require permanent residence, so as to be able to care for plants until they are developed and placed in the ground at the proper date in the calendar (before or during rainy season).	Not easy in nomadic cultures.
Early attempts often fail to produce lasting results.	Concentrate early efforts on small experimental plots so as to fine-tune planting methods and timing.

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？
The technology is usually not suitable for large areas of land (>1,000 hectares).	Compliment any rehabilitation efforts with improved management plans which are developed with stakeholder input and approval.
Plant losses are typically high, especially if rains fail to arrive, or if the year is abnormally dry.	Watch weather forecast to try and focus planting campaigns on those days with a high probability of rain.
Local species are often not valued by local officials and technicians, leading to a predominance of exotic species in rehabilitation works.	Undertake awareness and training sessions which highlight the value and uses of native species with local land users and administrative officials.

7.1 信息的方法/来源

7.3 链接到网络上的相关信息

标题/说明:

FAO in Action: Using indigenous knowledge to reverse land degradation in Angola.

URL:

http://www.fao.org/in-action/using-indigenous-knowledge-to-reverse-land-degradation-in-angola/en/