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）

Strengthening national-level institutional and professional capacities of country Parties towards enhanced UNCCD monitoring and reporting – GEF 7 EA Umbrella II (GEF 7 UNCCD Enabling Activities_Umbrella II)

有助于对技术进行记录/评估的机构名称（如相关）

National Soil Services Centre, Department of Agriculture, Ministry of Agriculture & Livestock (NSSC) - 不丹

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

注释:

Based on the responses provided by the interviewee (Group Chairman), it appears that electric fences may not directly contribute to mitigating land degradation. However, they can be considered as part of a technological approach, particularly in terms of adaptation, given their effectiveness in land restoration, fallow land reversion, ensuring food security, and ultimately enhancing livelihoods.

2.1 技术简介

技术定义:

The Electric Fencing System in Bhutan serves as a non-lethal approach to safeguarding crops from wild animals, aligning with the principles of Gross National Happiness (GNH). GNH emphasizes values such as compassion, non-killing, and harmonious coexistence with nature and its elements.

2.2 技术的详细说明

说明:

The Electric Fencing System in Bhutan serves as a non-lethal approach to safeguarding crops from wild animals, aligning with the principles of Gross National Happiness (GNH). GNH emphasizes values such as compassion, non-killing, and harmonious coexistence with nature.
The National Plant Protection Centre (NPPC), Department of Agriculture (DoA), Ministry of Agriculture and Livestock (MoAL) has been facilitating the application and installation of electric fence systems nationwide. This is achieved through the provision of comprehensive guidelines to help the public comprehend the fundamental components and installation procedures.
In essence, the electric fence system consists of three major parts: Energizers, Insulators, and Earth return. The energizer is responsible for generating high-voltage pulse electricity (ranging from 9-12 KV), which is then delivered along the fence wires. The majority of energizers are directly connected to the electricity line, while in some isolated cases, solar panels and batteries are used as alternative power sources. Insulators are typically crafted from a non-conductive material and serve as a barrier between the electrified wire and the wooden post. In the Bhutanese market, these insulators are not readily available, thus as an alternative, high-density polyethylene (HDPE) pipe has been found to be effective and cheap. The electric fence earth return serves as an essential pathway in the electric circuit, collecting high voltage and current from the earth and returning it to the energizer.
The loss of crops to wild animals leads to increased production costs in Bhutan (time spent in crop guarding) and the expansion of fallow lands. Farmers often resort to illegal and fatal methods of electric fencing, tapping electricity directly from the main line. To address these issues, the implementation of electric fencing, utilizing imported IEC-certified energizers and locally fabricated fencing materials, has proven to be successful. This electric fencing system, introduced after five years of pre-testing across the country, covers various locations targeting different problem species of animals. Not only is this technology effective in controlling wild pests, but it also enjoys high social acceptance among Bhutanese farmers due to its cost-effectiveness and being non-lethal to wild pests.
A recent study on the impact of electric fencing on food security focused on the Laptsakha community in Senggye Gewog, Sarpang Dzongkhag. They faced threats to food security from elephants, boar and stray cattle from neighboring communities in India. Crop production in Laptsakha was negligible before the introduction of electric fencing: resettled households contemplated returning, fertile lands were left fallow, and incomes shrank. The turning point came in 2013 with the introduction of electric fencing. This intervention successfully mitigated wildlife attacks on crops, ensuring food security and contributing to a harmonious ecosystem and improved livelihoods for the people of Laptsakha.
The electric fence, covering a distance of 7 km, protects a total of 60 households in all, safeguarding about 60 (24 ha) acres of vulnerable lands. Electric fences have various benefits including:
•Harmonious Approach: they do not cause harm to animals beyond a repellent shock.
•Economical and Easy to Build: they are cost-effective and relatively easy to construct.
•Learning and Deterrence: animals quickly learn to respect electric fences.
•Durability: they have an extended service life.
•Versatility: they offer a variety of designs and can control a wide range of wild animals.

The installation of an electric fence involves a participatory approach and several key steps:
•Location and Length: determine the location and approximate length of the electric fence either by manual measurement, or remote technologies for larger expanses.
•Material Estimation: estimate the required materials per kilometre based on the identified area, including wooden poles, HDPE pipe, and GI wire.
•Additional Materials: Consider other essential materials like energizers, solar panels, charge controllers, and batteries, depending on the specific requirements.
•Cost Estimation: Calculate the cost of installation, which varies regionally. For example, to instal one kilometre of an electric fence is estimated at about Nu. 7,450 (USD 95) excluding labour costs and cost of wooden poles which is sourced locally.

The implementation of electric fencing in the community has brought significant advantages, particularly in securing food. Prior to this intervention, the community faced severe challenges in harvesting crops, with approximately 70% of fertile lands being left fallow due to constant human-wildlife conflicts. Crop guarding became routine & risky.
With the introduction of electric fences, the community's agricultural landscape has undergone a positive transformation. Crop diversification has been enhanced, encompassing maize, ginger, paddy, mandarin fruit trees and areca nut. The frequency of wild elephant attacks has significantly decreased, leading to a notable increase in crop production. This has resulted in secured food sources and improved livelihoods. Additionally, the community has successfully revived previously fallow lands.
While the electric fencing has proven effective, there are challenges faced by the land users, notably the frequent damage to energizers, primarily attributed to thunderstorms. This has resulted in higher maintenance costs. In one specific instance, the community had to mobilize approximately Nu. 145,000 (USD 1800) independently to replace damaged energizers and other materials, supplementing the continued support from the government.

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:

2013

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 electric fencing program in the community was facilitated by the former Renewable Natural Resources and Development Centre (RNR-DC) - Yusipang, now known as the National Center for Organic Agriculture- Yusipang. Additionally, the expertise of the electric fence specialist from ARDC - Wengkhar, Mongar (Eastern Bhutan) was involved in the implementation of the program.

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
• 创造有益的经济影响
• 创造有益的社会影响

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）:

• 农林业

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）

注释:

The introduction of electric fencing in the community has not led to a change in land use patterns. However, there has been a notable transformation in land cover over the years. Prior to the implementation of electric fencing, approximately 70% of the currently cultivated lands (comprising 325 acres, including 168 acres of dry land and 157 acres of wetland) were left fallow due to the threat of wildlife (human-wildlife conflict). The introduction of electric fencing has played a crucial role in revitalizing these fertile fallow lands, bringing them back into cultivation.

3.4 供水

该技术所应用土地的供水:

• 混合雨水灌溉

注释:

The community is well-equipped with two full-time irrigation sources: Mahajan Irrigation and Ghantay Irrigation canals. However, the reliance on irrigation is reduced when there is sufficient rainfall. Therefore, they describe the irrigation system as a mixed approach, combining both irrigation sources and rainwater.

3.5 该技术所属的SLM组

• 天然和半天然森林管理
• 病虫害综合管理（包括有机农业）
• 湿地保护/管理

3.6 包含该技术的可持续土地管理措施

注释:

The electric fence can be a structural measure that ensures energy savings due to its versatility (solar and electric-power options). It can be also considered as one of the structural measures ensuring a harmonious environment.

3.7 该技术强调的主要土地退化类型

注释:

The electric fencing ensures harmonious environment for wild life. Their lives are prevented from fatal threats being attempted by farmers in controlling wild pests. Hence, they are dedicated with the safe habitats, which ultimately results in enhanced bio-diversity.

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:

The electric fence plays an important role in preventing and reducing land degradation. The lands encompassed within the electric fence are well managed and put to good use (higher ground coverage with year-round cultivation, proper nutrient management, and others). Caring for these productive lands encircled by electric fencing thereby either prevents or reduces land degradation ultimately.

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

其它/国家货币（具体说明）:

Ngultrum (Nu.)

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=:

80.0

4.3 技术建立活动

	活动	时间（季度）
1.	Area identification through Google Map by ARDC-Yusipang	2013, Winter
2.	Cleaning of vegetation along the identified fence line (10 m width)	2013, Winter (after crop harvest)
3.	Ground clearing and levelling (2 m width)	2013, Winter (after crop harvest)
4.	Gathering of fencing poles	2013, Winter (after crop harvest)
5.	Procurement and facilitation of materials (energizers, solar panels, nails, GI wire, insulation pipes)	2013, Winter (after crop harvest)
6.	Execution of fencing activities	2013, Winter (after crop harvest)

注释:

The actual electric fencing works in Laptsakha, measuring a distance of seven kilometres was completed in less than a month. Better community cooperation was a major reason behind this success, as per the Group's chairman.

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	Man	Person-days	1600.0	250.0	400000.0	100.0
设备	Energizer	No.	6.0	9500.0	57000.0
设备	GI wire (SWG 16)	Kg	356.0	95.0	33820.0
设备	Nail (3 inch)	Kg	106.0	82.0	8692.0
设备	Solar Panel (20 watts)	No.	6.0	7000.0	42000.0
设备	Charge controller	No.	6.0	1800.0	10800.0
设备	Acidic Battery	No.	6.0	2800.0	16800.0
设备	Lubricants (Gear oil)	Litre	6.0	254.0	1524.0
设备	Insulators (HDPE pipe [32 mm])	Metre	781.0	48.0	37488.0
施工材料	Wooden poles	No.	1400.0			100.0
其它	Other accessories	NA	1.0	1000.0	1000.0
技术建立所需总成本					609124.0
技术建立总成本，美元					7614.05

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:

National Centre for Organic Agriculture, Yusipang

注释:

The labour contribution was from Laptsakha and Nichula villages as the electric fencing benefitted both villages. Therefore, a higher number of land users are involved in the construction of the technology.
The total cost for the establishment of the technology is USD 7614.05 for 7 km (USD 1087.7 for 1 km). This includes labour cost which is borne by the land users.

4.5 维护/经常性活动

	活动	时间/频率
1.	Replacement of energizers during breakdowns	As and when breakdown occurs
2.	Fence line clearing	Monthly

注释:

Between 2013 and 2019, approximately 20 energizer sets had to be replaced due to thunderstorm damage. To address this issue, the community transitioned to using solar-powered energizers instead of electricity, proving to be a more effective solution. Double batteries were employed to ensure consistent current flow during cloudy days. As part of the routine maintenance, the clearing of the fence line became a monthly task, with each household assigned an area of approximately 116 meters to manage.

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	Labor	Person-days	59.0	700.0	41300.0	100.0
技术维护所需总成本					41300.0
技术维护总成本，美元					516.25

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。:

145000.0

注释:

The beneficiaries covered the cost of acquiring the damaged energizers through monthly contributions of Nu. 200 per household and other penalty revenues. The total costs for maintenance of the technology is USD 516.25 for 7 km ( USD 73.75 for 1 km).

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 primary factor incurring the cost, according to the beneficiaries, was the energizer set, which necessitates frequent replacement.

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:

The gentle plain dominates the area with a slope ranging from 2 to 5 per cent.

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。:

Moisture content 3.31%, organic matter 7.16%, Organic carbon 4.16%, pH 6.81, electrical conductivity 261.97 µs/cm, nitrogen 0.21%, phosphorus 0.34 ppm, Potassium 201.07 mg/100ml, texture sand clay loam.
The soil analysis was conducted at the Science Laboratory of College of Natural Resources, Royal University of Bhutan, Lobesa, Punakha.

5.4 水资源可用性和质量

水的盐度有问题吗？:

否

该区域正在发生洪水吗？:

否

5.5 生物多样性

关于生物多样性的注释和进一步规范:

The rich periphery environment, higher vegetation coverage, and evident agroforestry indicate high species and habitat diversity.

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

• Family land ownership

土地使用权:

• 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

具体说明:

The land use rights in Bhutan is traditional legal system guided by formal land act and land rules and regulations.

5.9 进入服务和基础设施的通道

注释:

The community is striving for the upgradation of the present primary school to high school.

6.1 该技术的现场影响

社会经济效应

生产

收入和成本

社会文化影响

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

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	未知

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	非常好
局地雷暴	不好
局地风暴	非常好

水文灾害

	该技术是如何应对的？
山洪暴发	非常不好
滑坡	非常不好

注释:

As per the interviewee, the annual rainfall has remained constant over the past decade. However, there has been a noticeable shift in the rainfall pattern, characterized by erratic rainfall. In previous years, the rainfall followed a seasonal pattern, which is no longer consistent in recent times.

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

• > 50%

如若可行，进行量化（住户数量和/或覆盖面积）:

The 7 km electric fencing program has benefitted 60 households.

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%

注释:

The initial establishment was done through external support by covering the whole community catchment area. One-time maintenance involving the cost of Nu. 145,000/- was initiated by the community by mobilizing their fund.

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

其它（具体说明）:

Due to target animal species

具体说明技术的适应性（设计、材料/品种等）:

The existing electric fence, operational up to now, underwent significant modifications, incorporating a chain-link fence valued at 1.10 million between February and May 2023. This alteration is intended to deter active wildlife pests, specifically monkeys and elephants.

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
Electric fencing aligns with the convictions of the land users, avoiding harm to wildlife as a means of protecting the land from wild animals.
Scaring wild animals with a mild electric shock, the technology deters them from approaching due to the fear of the electric shock from the fence.
Creating a favorable environment for agricultural activities, the technology encourages land users to participate in farming, resulting in increased production and household income.

编制者或其他关键资源人员认为的长处/优势/机会
Reduced risk of loss of life: Wild animals, particularly elephants, pose a threat to the lives of land users, with some reported fatalities. The technology can help mitigate or prevent such incidents.
The replication of this technology can eliminate fatal attempts made by land users in various parts of the country to control wild pests.

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？
Continuous break down of energizers has incurred high maintenance costs	Solar-powered fencing has been the best alternative as implemented by the community.
Clearing of the land under the fence is labourious and time consuming.	Timely monitoring of the clearing activity should be done.

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 GI wire experiences swift rusting.	Timely greasing and utilizing superior quality GI wire.

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:

Technical Reference Manual for installation and maintenance of Electric Fence, National Plant Protection Centre (NPPC), n.d.

URL:

https://www.nppc.gov.bt/electric-fencing-manual/

标题/说明:

Implementation Guidelines for Electric Fencing System, National Plant Protection Centre (NPPC), 2015

URL:

https://www.nppc.gov.bt/electric-fencing-manual/

标题/说明:

EF accessories, National Plant Protection Centre (NPPC), 2015

URL:

https://www.nppc.gov.bt/ef-accessories/

7.4 一般注释

The questionnaire is not easy to apply for such technology in terms of sections 2.5 and 4.2. Under section 2.5 “specify the spread of the technology” the options are not applicable for this technology implemented in 7 km length. Under section 4.2. it is difficult to specify units for the cost calculation. The cost for overall technology implementation can be added. However, the cost specified in km is not uniform. For example, the cost for 1 km could be USD 95 but for 2 km it will be less than USD 190 as there is no need for two energizers and other accessories.