Shallow tillage (15-20cm) [突尼斯]
- 创建:
- 更新:
- 编制者: Wiem Haouari
- 编辑者: –
- 审查者: William Critchley, Rima Mekdaschi Studer
In arabic حراثة خفيفة (بعمق 15-20 سم)،
technologies_7348 - 突尼斯
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全部展开 全部收起1. 一般信息
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
关键资源人
SLM专业人员:
Mohamed Raouf Brahimi Mohamed Raouf
Groupement de développement agricole Oasis centre Gabes
突尼斯
有助于对技术进行记录/评估的项目名称(如相关)
Groupement de développement agricole Oasis centre Gabes (GDA Oasis centre Gabes 2024)有助于对技术进行记录/评估的机构名称(如相关)
FAO Tunisia (FAO Tunisia)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
1.5 参考关于SLM方法(使用WOCAT记录的SLM方法)的调查问卷
Projet de développement des zones montagneuses du Nord … [突尼斯]
Le projet de développement des zones montagneuses de Nord Ouest Tunisien est mis en oeuvre par l'Office de développement sylvo-pastoral de Nord Ouest en adoptant une approche participative et intégrée afin de promouvoir le développement socio-économique et agro-écologique des zones montagneuses.
- 编制者: Donia Mühlematter
2. SLM技术的说明
2.1 技术简介
技术定义:
Shallow tillage involves disturbing the upper layer of soil without deep ploughing. It aims to provide a good seedbed, incorporate manure, control weeds, and enhance water infiltration while minimizing soil erosion and compaction. A machine tiller has recently replaced animal traction for this purpose.
2.2 技术的详细说明
说明:
Shallow tillage (15-20cm deep) involves disturbing the upper layer of soil and avoids deep ploughing. It aims to provide a good seedbed, while incorporating manure, controlling weeds, and enhancing water infiltration. Soil erosion is minimised, compaction is reduced and because deeper layers are not disturbed, less soil organic matter is oxidised.
Shallow tillage - sometimes called “superficial” or “light” tillage – disturbs only the topsoil and brings several benefits. These include:
* Soil Structure Preservation: Maintains the underlying soil structure, reducing the risk of compaction and erosion.
* Moisture Conservation: Helps retain soil moisture by reducing evaporation from deeper layers.
* Reduced Erosion: Minimizes soil erosion by maintaining residues.
* Increased Microbial Activity: Promotes beneficial microbial activity in the topsoil, enhancing soil health.
* Nutrient Management: Allows for targeted application of fertilizers and amendments, as it primarily affects the upper soil layer.
* Time and Labour Efficiency: Generally, requires less time and fewer resources compared to deep tillage methods.
Smallholders in Gabes, South-East Tunisia practice shallow tillage and were interviewed to gain extra insights into this technology. They were welcoming and happy to share their knowledge while gaining information about enhancing their own production systems.
These smallholders farm in “The Oasis of Gabes” where there is a specific design of multi-storey agroforestry with trees, shrubs and vegetable crops. This requires specific agronomic practices. One of these practices is shallow tillage. A machine tiller has recently replaced animal traction for this purpose. They would prefer a no-till technique, however this would be more costly because it requires extra manure and soil cover by mulching or sand backfill. This may be possible for another category of farmers.
2.3 技术照片
2.4 技术视频
注释、简短说明:
In a very specific ecosystem in the world (Littoral oasis of Gabes), small-scale farmers are thriving to keep this unique countryside system and make profit from their lands. They are adapting sustainable small tillage technique in order to keep sustainably productive land. This video is showing a small cultivator that is lightly tilling the land in order to bury manure, eliminate weeds and prepare the land for plantation.
日期:
07/11/2024
位置:
Gabes (South east Tunisia)
摄影师的名字:
Wiem Haouari
2.5 已应用该技术的、本评估所涵盖的国家/地区/地点
国家:
突尼斯
区域/州/省:
Gabes
有关地点的进一步说明:
Gabes
具体说明该技术的分布:
- 均匀地分布在一个区域
如果不知道精确的区域,请注明大致覆盖的区域:
- < 0.1 平方千米(10 公顷)
技术现场是否位于永久保护区?:
否
注释:
The technology is implemented in a very specific ecosystem (Littoral oasis Gabes), The interventions are really limited. Farmers are keeping traditional agricultural practices (irrigation by submersion for instance) in order to keep the typical cultivation of the oasis.
Map
×2.6 实施日期
如果不知道确切的年份,请说明大概的日期:
- 50多年前(传统)
2.7 技术介绍
详细说明该技术是如何引入的:
- 作为传统系统的一部分(> 50 年)
注释(项目类型等):
This technique has been practiced for decades. What has changed are the tools used for tillage. For example, previously a tiller was pulled by a domestic animal (a cow, a horse, a donkey...etc.)
3. SLM技术的分类
3.1 该技术的主要目的
- 改良生产
- 减少、预防、恢复土地退化
- 保持/提高生物多样性
- 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::
是
具体说明混合土地使用(作物/放牧/树木):
- 农牧业(包括农牧结合)
农田
- 多年一作(非木材)
- 乔木与灌木的种植
多年生(非木质)作物 - 指定作物:
- 药用、芳香、杀虫植物 - 多年生植物
- Lawsonia inermis (commonly named Henna)
每年的生长季节数:
- 2
具体说明:
alfaalfa (medicago sativa) is a perennial cultivated in the Lands described
采用间作制度了吗?:
是
如果是,说明哪些作物是间作的:
barley-alfalafa
采用轮作制度了吗?:
是
如果是,请具体说明:
fabacae
水道、水体、湿地
主要产品/服务:
Drainage, it is the main traditional canalisation to drain excessive irrigation water from the oasis.
不毛之地
具体说明:
Because of the raise of salinity amount ,lands are in degradation and many of them become unproductive
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?:
- 否(继续问题3.4)
农田
3.4 供水
该技术所应用土地的供水:
- 混合雨水灌溉
注释:
There is a lack of water and risk of drought in the south eastern region. We are working with farmers on recovering rainwater .
3.5 该技术所属的SLM组
- 改良的地面/植被覆盖
- 最小的土壤扰动
- 土壤肥力综合管理
3.6 包含该技术的可持续土地管理措施
农艺措施
- A1:植被和土壤覆盖层
- A2:有机质/土壤肥力
- A3:土壤表面处理
A3:区分耕作制度:
A 3.2: Reduced tillage (> 30% soil cover)
注释:
Some farmers are using mulching for soil coverage and protection from weeds.
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
- Wm:块体运动/滑坡
土壤风蚀
- Et:表土流失
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)
- Cp:土壤污染
- Cs:盐化/碱化
物理性土壤退化
- Pc:压实
- Ps:有机土壤沉降,土壤沉降
生物性退化
- Bc:植被覆盖的减少
- Bh:栖息地丧失
- Bl:土壤寿命损失
水质恶化
- Ha:干旱化
- Hs:地表水良变化
- Hp:地表水水质下降
注释:
The studied lands are situated in Gabes, south east of Tunisia. The region is characterised by a semi arid climate, Soil is exposed to winds . We have to mention that the area is polluted compared to other regions in the country. This has badly affected the cropping systems and created an unbalanced ecological system. The polluted atmosphere has contributed to less rainfall.
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
- 适应土地退化
注释:
The majority of farmers are looking for adaptation techniques. Climate change has created climatic aberrations such as a rise in temperature, a decrease of the minimum number of hours of cold that are necessary for dormancy of seeds and trees. By necessity, current agronomic practices of farmers have changed in order to improve the cropping system.
4. 技术规范、实施活动、投入和成本
4.1 该技术的技术图纸
技术规范(与技术图纸相关):
The figure is showing the main components of the rotavator. It is the mechanised tool used by oasian farmers. This type of tillage is the only one adapted to oasian ecosystem and small spaces. The boarders of every cultivated interculture space is bordered by trees, shrubs or palm trees.
作者:
Wiem Haouari
日期:
17/10/2024
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
注明尺寸和面积单位:
are
如果使用本地面积单位,注明转换系数为1公顷(例如1公顷=2.47英亩):1公顷=:
1are = 100square meter
其它/国家货币(具体说明):
TND
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=:
3.07
注明雇用劳工的每日平均工资成本:
30-40
4.4 技术建立所需要的费用和投入
如果您无法分解上表中的成本,请估算建立该技术所需要的总成本。:
150.0
4.5 维护/经常性活动
活动 | 时间/频率 | |
---|---|---|
1. | Exposing the soil to the sun to kill pathogens | July-August |
2. | Keeping the soil dry and more stable | the mid final August |
3. | Contracting with labour and machinery | August |
4. | Making the minimum tillage (it depends on the surface) | September-October |
5. | Tillage | Twice a year |
4.6 维护/经常性活动所需要的费用和投入(每年)
如果您无法分解上表中的成本,请估算维护该技术所需要的总成本。:
350.0
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 most important factors affecting the costs are: the need to keep more moisture in the soil, good aeration for roots, improvement of soil texture and increase in organic matter.
5. 自然和人文环境
5.1 气候
年降雨量
- < 250毫米
- 251-500毫米
- 501-750毫米
- 751-1,000毫米
- 1,001-1,500毫米
- 1,501-2,000毫米
- 2,001-3,000毫米
- 3,001-4,000毫米
- > 4,000毫米
指定年平均降雨量(若已知),单位为mm:
159.00
有关降雨的规范/注释:
Gabès has dry periods in January, February, March, April, May, June, July, August, September, November and December.
On average, October is the wettest month with 26 mm of precipitation.
On average, July is the driest month with 0 mm of precipitation.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Gabès varies throughout the year.
注明所考虑的参考气象站名称:
Institut national de métérologie
农业气候带
- 半干旱
In Gabès, the summers are hot, muggy, arid, and clear and the winters are cool, dry, windy, and mostly clear. Over the course of the year, the temperature typically varies from 46°F to 91°F and is rarely below 40°F or above 99°F.
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Gabès varies throughout the year.
5.2 地形
平均坡度:
- 水平(0-2%)
- 缓降(3-5%)
- 平缓(6-10%)
- 滚坡(11-15%)
- 崎岖(16-30%)
- 陡峭(31-60%)
- 非常陡峭(>60%)
地形:
- 高原/平原
- 山脊
- 山坡
- 山地斜坡
- 麓坡
- 谷底
垂直分布带:
- 0-100 m a.s.l.
- 101-500 m a.s.l.
- 501-1,000 m a.s.l.
- 1,001-1,500 m a.s.l.
- 1,501-2,000 m a.s.l.
- 2,001-2,500 m a.s.l.
- 2,501-3,000 m a.s.l.
- 3,001-4,000 m a.s.l.
- > 4,000 m a.s.l.
说明该技术是否专门应用于:
- 不相关
5.3 土壤
平均土层深度:
- 非常浅(0-20厘米)
- 浅(21-50厘米)
- 中等深度(51-80厘米)
- 深(81-120厘米)
- 非常深(> 120厘米)
土壤质地(表土):
- 粗粒/轻(砂质)
土壤质地(地表以下> 20厘米):
- 粗粒/轻(砂质)
表土有机质:
- 中(1-3%)
5.4 水资源可用性和质量
地下水位表:
5-50米
地表水的可用性:
匮乏/没有
水质(未处理):
良好饮用水
水质请参考::
地表水
水的盐度有问题吗?:
是
具体说明:
The average of salinity water is 3.5-5.7 g/L
该区域正在发生洪水吗?:
否
5.5 生物多样性
物种多样性:
- 中等
栖息地多样性:
- 中等
关于生物多样性的注释和进一步规范:
Referring to scientific studies and indicators used to measure biodiversity in the oasis, we find out that many species have migrated, become extinct or are threatened by extinction. This can be explained for several reasons such as: excessive urbanisation in rural areas and polluted ecosystem, etc.
5.6 应用该技术的土地使用者的特征
定栖或游牧:
- 定栖的
生产系统的市场定位:
- 混合(生计/商业)
非农收入:
- 收入的10-50%
相对财富水平:
- 平均水平
个人或集体:
- 个人/家庭
机械化水平:
- 手工作业
- 畜力牵引
性别:
- 女人
- 男人
土地使用者的年龄:
- 青年人
- 中年人
- 老年人
5.7 应用该技术的土地使用者使用的平均土地面积
- < 0.5 公顷
- 0.5-1 公顷
- 1-2 公顷
- 2-5公顷
- 5-15公顷
- 15-50公顷
- 50-100公顷
- 100-500公顷
- 500-1,000公顷
- 1,000-10,000公顷
- > 10,000公顷
这被认为是小规模、中规模还是大规模的(参照当地实际情况)?:
- 小规模的
注释:
Soil degradation has been accelerated by pollution, erosion and construction work. These actions disturb soil and leave it vulnerable to wind and water erosion. This has damaged land revenues and crop quality.
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:
- 社区(有组织)
- 个人
用水权:
- 社区(有组织)
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
健康:
- 贫瘠
- 适度的
- 好
技术援助:
- 贫瘠
- 适度的
- 好
就业(例如非农):
- 贫瘠
- 适度的
- 好
市场:
- 贫瘠
- 适度的
- 好
能源:
- 贫瘠
- 适度的
- 好
道路和交通:
- 贫瘠
- 适度的
- 好
饮用水和卫生设施:
- 贫瘠
- 适度的
- 好
金融服务:
- 贫瘠
- 适度的
- 好
6. 影响和结论性说明
6.1 该技术的现场影响
社会经济效应
生产
作物生产
注释/具体说明:
The farmer adopts rotation in crop systems, we can't then make a comparison for different yield of diffrent crops
作物质量
注释/具体说明:
Farmers notice less pest attacks and better sweetness in vegetable tasting.
饲料生产
注释/具体说明:
Farmers noticed better revenues in producing the main fodder specie of the Oasis, namely alfafa (Medicago sativa).
饲料质量
注释/具体说明:
The leaves were developed generously and there was more concentration of chlorophyll in leaves. We assumed this to higher concentration of soil nitrogen and phosphorus held in the soil.
畜牧生产
注释/具体说明:
As there is abundance of weed intercrops, animals are taking enough fodder from grazing.
水资源可用性和质量
家畜用水的可用性
注释/具体说明:
The technology doesn't have a direct impact on water availability for livestock
社会文化影响
食品安全/自给自足
注释/具体说明:
Better self supply and self sufficiency
土地使用权/用水权
注释/具体说明:
By constraint of water irrigation availabilitynthe technique has allowed the soil to maintain water for longer period than before.
文化机会
注释/具体说明:
By using animal tillage, farmers have a myth that it is a sign of fortune for good agricultural season.
SLM/土地退化知识
注释/具体说明:
Farmers need more direct contact with SLM specialists and agriculture engineers. The indicators mentioned before could be enhanced if combined by other synchronised measures.
生态影响
土壤
土壤水分
注释/具体说明:
We noticed better retaining of water in the soil
土壤覆盖层
注释/具体说明:
Farmers are more aware about the importance of covered soil in order to avoid water and wind erosion.
土壤流失
注释/具体说明:
By keeping the soil covered,soil loss has decreased.
土壤堆积
土壤结壳/密封
注释/具体说明:
The intervention to make tillage is minimum and there is a recovery of the lost soil,that's why
6.2 该技术的场外影响已经显现
旱季稳定可靠的水流
注释/具体说明:
The management of water resource referring to water availability is assured by the groupement de développement agricole Gabes centre
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 | 适度 | |
季节性温度 | 夏季 | 增加 | 适度 |
年降雨量 | 减少 | 适度 |
气候有关的极端情况(灾害)
气象灾害
该技术是如何应对的? | |
---|---|
热带风暴 | 不好 |
当地沙尘暴/尘暴 | 适度 |
局地风暴 | 好 |
气候灾害
该技术是如何应对的? | |
---|---|
热浪 | 不好 |
极端冬季条件 | 非常不好 |
干旱 | 好 |
生物灾害
该技术是如何应对的? | |
---|---|
流行病 | 好 |
昆虫/蠕虫侵扰 | 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? | |
---|---|
海平面上升 | 未知 |
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)?
短期回报:
稍微积极
长期回报:
非常积极
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)?
短期回报:
稍微积极
长期回报:
非常积极
6.5 技术采用
- 11-50%
如若可行,进行量化(住户数量和/或覆盖面积):
120
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?:
- 51-90%
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?:
是
若是,说明它适应了哪些变化的条件:
- 气候变化/极端气候
具体说明技术的适应性(设计、材料/品种等):
The technology was adapted through design and material - specifically the type of machine use for tillage.
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 |
---|
The technology has several virtues for Oasis ecosystem. Since it is a specific agriculture system, it requires constant interventions and various techniques. The technology allow farmers to care about their lands sustainably. |
The technique is not costly affecting the farmer |
The technique is adapted to the oasian ecosystem and the bioeconomy circumstances. |
编制者或其他关键资源人员认为的长处/优势/机会 |
---|
The technique is not costly. Agriculture costs affect the decision of farmers in this area |
It is a revenue incoming for cultivator owners |
The timing adapted by farmers to till is very important. The technique enhances the manure and incorporation of fallen leaves. This enhances the amount and stability of organic material in the soil. |
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 a limited technique because of small plots of land | expanding the cultivated area |
it requires physical effort | encouraging precision mechanisation |
7. 参考和链接
7.1 信息的方法/来源
- 实地考察、实地调查
10 informants were interviewed (choice was based on availability and their openness to the survey)
- 与土地使用者的访谈
5 land users (choice was based on availability and their openness to the survey)
- 根据报告和其他现有文档进行编译
I referred to research studies and documents (4 documents). Specially to describe better the irrigation system .
(现场)数据是什么时候汇编的?:
21/08/2024
7.2 参考可用出版物
标题、作者、年份、ISBN:
https://www.laboasis.org/oasis-traditional-water-systems/
7.3 链接到网络上的相关信息
标题/说明:
Les eaux de drainage de l'oasis de gabes
URL:
https://www.eyrolles.com/Litterature/Livre/les-eaux-de-drainage-de-l-oasis-de-gabes-9783841663160/
7.4 一般注释
Le groupement de développement agricole oasis centre Gabes is encouraging these kind of initiatives in order to develop water and natural resource management for the benefit of small scale farmers. Thanks for his willingness to accept this initiative when I suggested it .Thanks to WOCAT and University of Bern for this insightful platform and distinguished team. It is such a pleasure to contribute to such a global initiative and present the method worldwide.
I have a remark. Farmers are more interactive when I interviewed them one to one in their lands. I suggest that WOCAT platform editors might give more columns to fill each farmers data so that the survey might be statistically be effective and correct.
链接和模块
全部展开 全部收起链接
Projet de développement des zones montagneuses du Nord … [突尼斯]
Le projet de développement des zones montagneuses de Nord Ouest Tunisien est mis en oeuvre par l'Office de développement sylvo-pastoral de Nord Ouest en adoptant une approche participative et intégrée afin de promouvoir le développement socio-économique et agro-écologique des zones montagneuses.
- 编制者: Donia Mühlematter
模块
无模块