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）

ICARDA Institutional Knowledge Management Initiative

有助于对技术进行记录/评估的机构名称（如相关）

International Center for Agricultural Research in the Dry Areas (ICARDA) - 黎巴嫩

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:

The technology utilizes a drought-tolerant native forage legume, Hedysarium coronarium, to restore degraded soils by covering the soil, fixing nitrogen, improving biodiversity and increasing water infiltration while fodder quality and availability is improved.

2.2 技术的详细说明

说明:

In the semi-arid areas of Tunisia, drylands are prone to a harsh environment combining high temperatures and limited annual rainfall (350 - 600mm). Nevertheless, many marginal farmers depend on these drylands for income through grazing their livestock. However, due to worsening climatic conditions and mismanagement, the land is becoming seriously degraded. This results in a degradation cycle: overgrazing results in less land available to graze and therefore more rapid degradation on those areas. To break the cycle, an innovative approach is needed.
The International Centre of Agricultural Research in Dry Areas (ICARDA) recognized the problem and developed an approach, together with national parties Office de l'élevage et des pâturages (OEP), Office du Développement Sylvo- Pastoral du Nord -Ouest (ODESYPANO), and Direction Générale des forêts (DGF). They focused on native species which are adapted to the harsh environmental conditions. They selected leguminous species, because these enhance the soil's nutrient status through nitrogen fixation. Additionally, legumes improve the diet of livestock. The perennial Hedysarum coronarium or "Sulla" provides the soil with cover, reducing erosion and increasing water infiltration: rainfall is intercepted by the vegetation cover, resulting in less runoff. The cover also provides shade, which decreases evaporation. Then, the roots of the vegetation improve soil porosity, hence the infiltration capability of the soil. All these benefits improve biophysical and socio-economic resilience.
A degraded field was planted with Sulla in 2017. The land was ploughed before manual seeding. To prevent overgrazing, grazing was managed according to guidelines formulated by ICARDA and national parties. In the initial year, twenty-five smallstock (sheep/goats) graze one hectare for thirty to sixty days. In subsequent years, forty smallstock graze one hectare for thirty to sixty days, since the vegetation is then better rooted and developed. To maintain optimal production, a field needs reseeding after three years, hence the activities and related costs shown in this documentation are recurrent every three years.
This technology has had several positive impacts in the area. The productivity was increased from approximately 2310 kg (dry matter: DM) per hectare to approximately 5330 DM kg per hectare. The technology also increased water productivity from 9.5 DM kg per mm rainfall to 11.8 DM kg per mm rainfall. Hedysarum coronarium improved the quality of fodder, thus benefiting local land users. In addition, the soil was less prone to erosion and water better retained in the soil.
Land users also stated that they benefited from the improved fodder availability because this decreased the costs of feed import. Also, since Sulla is suited to the local climate, few inputs are required, reducing costs and work.

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

注明实施年份:

2017

2.7 技术介绍

详细说明该技术是如何引入的:

• 在实验/研究期间
• 通过项目/外部干预

3.1 该技术的主要目的

• 改良生产
• 减少、预防、恢复土地退化
• 降低灾害风险
• 适应气候变化/极端天气及其影响
• 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

同一土地单元内混合使用的土地：:

否

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）

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
• 改良植物品种/动物品种

3.6 包含该技术的可持续土地管理措施

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:

• 每个技术区域

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.	Land Preparation
2.	Seeding

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	Manual Seeding	Person-Hours	10.0	0.875	8.75	100.0
设备	Plough	Machine-Hours	0.75	15.0	11.25	100.0
植物材料	Sulla Seed	Kilogram	30.0	1.5	45.0
技术建立所需总成本					65.0
技术建立总成本，美元					65.0

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 seeds are often provided by other parties such as ICARDA or national parties

注释:

The activities and related costs are recurrent every 3 years.

5.1 气候

5.2 地形

说明该技术是否专门应用于:

• 不相关

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。:

(47% silt, 29% sand and 24% clay)

5.4 水资源可用性和质量

水的盐度有问题吗？:

是

该区域正在发生洪水吗？:

否

5.5 生物多样性

5.6 应用该技术的土地使用者的特征

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

土地使用权:

• 个人

用水权:

• 社区（有组织）
• 个人

土地使用权是否基于传统的法律制度？:

是

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

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

6.3 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）

气候灾害

	该技术是如何应对的？
热浪	好
干旱	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

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
Decreased costs of feed import
Better year-round availability of fodder
Less risk of drought damage

编制者或其他关键资源人员认为的长处/优势/机会
Enhanced soil conditions such as improved soil moisture and fixed nitrogen
Improved economic situation of local land users
Restoration of degraded land

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？
Grazing management	Grazing management ensures sustainable fodder production hence it is a necessary sacrifice.

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:

Mounir Louhaichi, Slim Slim, Khlifa Jilali. (30/11/2020). Field day on sulla cultivation using a participatory community-based approach.

可以从哪里获得?成本如何?

https://hdl.handle.net/20.500.11766/12367

标题、作者、年份、ISBN:

Slim Slim, Mounir Louhaichi, Mouldi Gamoun, Serkan Ates, Sawsan Hassan, Oumeima Rhomdhane, Azaiez Ouled Belgacem. (17/2/2021). Assessment of soil surface scarification and reseeding with sulla (Hedysarum coronarium L. ) of degraded Mediterranean semi-arid rangelands. African Journal of Range and Forage Science.

可以从哪里获得?成本如何?

https://hdl.handle.net/20.500.11766/12618

标题、作者、年份、ISBN:

Mounir Louhaichi, Kailene Jamel, Slim Slim, Med Bechir Tarchi, Mouldi Gamoun, Sawsan Hassan, Hloniphani Moyo. (30/4/2019). Sustainable Silvopastoral Restoration to Promote Ecosystem Services in Tunisia Project Final Report.

可以从哪里获得?成本如何?

https://hdl.handle.net/20.500.11766/10220

标题、作者、年份、ISBN:

Mounir Louhaichi, Slim Slim, Gouider Tibaoui. (14/9/2018). Managing rangelands: promoting sustainable legume species: Hedysarum coronarium L. a biennial herbaceous legume used for forage in the Mediterranean basin. Beirut, Lebanon: International Center for Agricultural Research in the Dry Areas (ICARDA).

可以从哪里获得?成本如何?

https://hdl.handle.net/20.500.11766/8497