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）

R4D Woody Weeds

有助于对技术进行记录/评估的机构名称（如相关）

CDE Centre for Development and Environment (CDE Centre for Development and Environment) - 瑞士

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:

To manage single-stemmed invasive Prosopis juliflora trees, it's advised to use the cut-stump treatment. This involves cutting the tree at its base (≤ 15cm above the ground) and applying a suitable herbicide to the freshly cut stump, focusing on the root collar, stump sides, and outer cut surface.

2.2 技术的详细说明

说明:

Cut-stump technology is a suitable method for killing unwanted woody trees and weeds using cutting and herbicide. It involves the cutting of the target tree not more than 15 cm from the ground followed by spraying or painting the freshly cut stump surface, the stump and root collar with the herbicide. Tordon (Picloram 65g/l + 2,4-D 240g/l) is usually mixed with an oil-based substance such as diesel and applied immediately and not more than 15 minutes after cutting for best results to be achieved. Oil-based solvents act as penetrants increasing the rate of chemical absorption by the plants. For mature trees with wide diameters, the cambium at the edge of the cut stump is usually targeted in addition to the cut surface to kill the roots and stems hence prevent regrowth. The area should be fully wet with herbicide, but not so much that it induces runoff. This approach should be avoided in times of heavy rain which could prevent the herbicide from reaching the ground line. It is suitable where the density of the target invasive plant is low.

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:

• 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

• 减少、预防、恢复土地退化
• 保持/提高生物多样性

3.2 应用该技术的当前土地利用类型

3.3 有关土地利用的更多信息

该技术所应用土地的供水:

• 雨养

每年的生长季节数:

• 3

3.4 该技术所属的SLM组

• 减少基于生态系统的灾害风险

3.5 技术传播

具体说明该技术的分布:

• 适用于特定场所/集中在较小区域

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

注释:

Beyond this, the technology also preserves the provision of ecosystem services related to grazing and water - both are considered crucial for pastoral and agricultural land use / livelihoods in Northern Kenya.

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

注释:

Land infested by Prosopis is considered degraded. The spread of invasive species e.g. Prosopis leads to "vegetation degradation".

4.1 该技术的技术图纸

4.2 技术规范/技术图纸说明

The target tree is cut above the ground, usually 15 cm, after which a pressurized spray or painting brush is used to apply a herbicide around the freshly cut surface. The cambium should be targeted for trees with wider diameters to facilitate absorption of the herbicide solution to the roots.

4.3 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

其它/国家货币（具体说明）:

Kenyan Shilling

注明美元与当地货币的汇率(如相关):1美元=:

100.0

4.4 技术建立活动

	活动	措施类型	时间
1.	Cutting the tree stump	管理	10 minutes
2.	Applying herbicide	管理	6 minutes

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%
劳动力	Cutting and treating tree stumps	man days	10.0	300.0	3000.0	100.0
设备	Power saw
肥料和杀菌剂	Tordon chemical (www.desertcart.co.ke)	32 oz bottle	1.0	10689.0	10689.0	100.0
肥料和杀菌剂	Diesel	liter
技术建立所需总成本					13689.0

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:

In some cases, development projects may cover the costs for the herbicide.

注释:

The herbicide seems to be available in Kenya in 32 oz bottles.

4.6 维护/经常性活动

	活动	措施类型	时间/频率
1.	Control of the stump, recut and retreat if necessary	管理	after every 3 months

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

5.4 水资源可用性和质量

该区域正在发生洪水吗？:

是

规律性:

偶然

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

土地所有权:

• 州

土地使用权:

• 社区（有组织）

用水权:

• 社区（有组织）

5.9 进入服务和基础设施的通道

6.1 该技术的现场影响

生态影响

生物多样性:植被、动物

6.2 该技术的场外影响已经显现

有关影响评估的意见:

The impact assessment of the technology described here should probably also be discussed in the context of what happens after the treatment of prosopis infested area - i.e. what is the cleared land used for afterwards?

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）

注释:

The technology described here is not sensitive to climate change.

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

注释:

The herbicide was not available to land users since no licenses for its use were issued in Kenya yet.

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
A highly selective method with minimal adverse impacts to non-targeted tree species.
Very effective method of killing unwanted tree species.

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？
The herbizide should never be applied close to surface water bodies.	Proper control and training of land users

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？
According to some sources (e.g. Richardson 2009), costs of cut-stump treatment become prohibitive when Prosopis density is high.	Apply different methodology
Standing stumps hazardous risks to passers by or vehicles.	Apply fencing

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:

Anderson, L. (20111). Effective control of mesquite-pilbara tools and tips : Pilbara Mesquite Management Committee

可以从哪里获得?成本如何?

http://www.aces.edu/pubs/docs/A/ANR-1465/ANR-1465-low.pdf

标题、作者、年份、ISBN:

Cut Stump Herbicide Treatments for Invasive Plant Control Recommendations for Homeowners

可以从哪里获得?成本如何?

http://www.aces.edu/pubs/docs/A/ANR-1465/ANR-1465-low.pdf

标题、作者、年份、ISBN:

Hoel, S. (2015). ARE YOU USING THE RIGHT CUT STUMP HERBICIDE?

可以从哪里获得?成本如何?

https://mdc.mo.gov/blogs/more-quail/are-you-using-right-cut-stump-herbicide

标题、作者、年份、ISBN:

The Biology of Australian Weeds. Volume 3. Published 2009 by R.G. and F.J. Richardson.

可以从哪里获得?成本如何?

http://era.daf.qld.gov.au/id/eprint/1495/ (costs 85.- AUD)

7.3 链接到网络上可用的相关信息

标题/说明:

Youtube video showing cut-stump treatment

URL:

https://www.youtube.com/watch?v=gCbHkPPkRZI