技术

Terrace with Tree Barrier [塔吉克斯坦]

technologies_1409 - 塔吉克斯坦

完整性: 69%

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:
SLM专业人员:
有助于对技术进行记录/评估的项目名称(如相关)
Pilot Program for Climate Resilience, Tajikistan (WB / PPCR)
有助于对技术进行记录/评估的机构名称(如相关)
NCCR North-South (NCCR North-South) - 吉尔吉斯斯坦
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。:

1.5 参考关于SLM方法(使用WOCAT记录的SLM方法)的调查问卷

Voluntary Labour Assistance
approaches

Voluntary Labour Assistance [塔吉克斯坦]

Voluntary labour assistance for labour intensive activities whereby community members help each other in contributing labour on the basis of mutual understanding.

  • 编制者: Erik Bühlmann

2. SLM技术的说明

2.1 技术简介

技术定义:

Forward sloping terraces stabilised with aligned poplar trees and adjacent grass strips

2.2 技术的详细说明

说明:

On steep and severely eroded cropland a forward sloping terrace (15% gradient) was established by moving available earth with a bulldozer. Below the terraced field, a cut-off drain diverts excessive rain and irrigation water to an existing gully. The terrace and the cut off drain are stabilised by an aligned tree barrier (poplar trees planted in 0.5 metre intervals), and by two parallel grass strips of 1-2 metres in width.
The terrace was built using a bulldozer. Digging the cut-off drain and planting the poplar cuttings was done by hand. For the initial establishment of the grass strip clods were transferred from a neighbouring pasture. The poplar trees are pruned in early spring; the cut off-drain needs to be cleared of washed in soil after heavy storm events. The described terrace is established on steep cropland prone to soil erosion. The technology is relatively simple to implement.

Purpose of the Technology: The terrace was established to reduce soil erosion and subsequent fertility decline through the reduction of the slope angle. The tree barrier is planted because of the usefulness of poplar trees for construction purposes and to mark field boundaries; its capability of acting as a stabilising terrace is a very useful extra side effect.

Establishment / maintenance activities and inputs: Establishment costs and the rather low maintenance costs are offset by the benefits of the harvested wood produced. Poplar trees can be gradually felled and used for construction purposes 15 years after they are initially planted. Through reduction of the slope angle, the risk of soil erosion is lowered significantly. However, poplar trees can only be planted on land where sufficient water for irrigation is available, since they need to be watered on a weekly basis during the summer. Furthermore, the technology covers land which then cannot be used for cultivation of food crops.

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

国家:

塔吉克斯坦

区域/州/省:

RRS

有关地点的进一步说明:

Faizabad Rayon

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:
  • 0.1-1 平方千米
注释:

Общая площадь, на которой задействована технология, 0,5 квадратных метра.

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

3. SLM技术的分类

3.1 该技术的主要目的

  • 减少、预防、恢复土地退化

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::

具体说明混合土地使用(作物/放牧/树木):
  • 农林业

农田

农田

  • 一年一作
  • 乔木与灌木的种植
年作 - 具体指明作物:
  • 谷类 - 小麦(春季)
  • 纤维作物 - 亚麻、大麻和其他
  • 豆科牧草和豆类 - 豌豆
乔木和灌木种植 - 指定作物:
  • 仁果类(苹果、梨子、柑橘等)
  • 核果(桃、杏、樱桃、李子等)
  • 树坚果(巴西坚果、开心果、核桃、杏仁等)
每年的生长季节数:
  • 1
具体说明:

Longest growing period in days: 210Longest growing period from month to month: March to August

注释:

Major land use problems (compiler’s opinion): severe water erosion (rills and gullies) and subsequent fertility decline on cropland and overgrazed pastures

Major land use problems (land users’ perception): soil erosion and fertility decline

Type of cropping system and major crops comments: If land is irrigated, then after the wheat harvest there can be immediate cultivation of vegetables

3.4 供水

该技术所应用土地的供水:
  • 混合雨水灌溉

3.5 该技术所属的SLM组

  • 农业林学
  • 横坡措施

3.6 包含该技术的可持续土地管理措施

植物措施

植物措施

  • V1:乔木和灌木覆盖层
结构措施

结构措施

  • S1:阶地
注释:

Main measures: structural measures

Secondary measures: vegetative measures

Type of vegetative measures: aligned: -contour, aligned: -along boundary

3.7 该技术强调的主要土地退化类型

土壤水蚀

土壤水蚀

  • Wt:表土流失/地表侵蚀
  • Wg:冲沟侵蚀/沟蚀
化学性土壤退化

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)
注释:

Main type of degradation addressed: Wt: loss of topsoil / surface erosion, Wg: gully erosion / gullying

Secondary types of degradation addressed: Cn: fertility decline and reduced organic matter content

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
注释:

Main goals: prevention of land degradation

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):

Терраса с уклоном вперед, укрепленная полосой деревьев и травяными полосами, отводной канал используется для отвода излишков воды вниз по склону
Место расположения: Карсанг. Файзабадский район

Дата: 15.07.2005

Необходимые технические навыки для работников: средний

Необходимые технические навыки для землепользователей: средний

Основные технические функции: сокращение угла откоса, сокращение длины откоса

Вторичные технические функции: контроль рассеивающихся поверхностных стоков: запруда / замедление, контроль над концентрированными стоками: запруда / замедление, контроль над концентрированными стоками: дрена / отводка, улучшение земляного покрова, повышение / поддержание сохранения воды в почве, сокращение скорости ветра

Выравнивание: -контур
Растительный материал: Д: деревья / кустарники
Количество растений на гектар: 200
Вертикальная протяженность полос / рядов / блоков в м : 0.5

Выравнивание: -вдоль границы
Растительный материал: Д: деревья / кустарники
Количество растений на гектар: 200

Мероприятия, связанные с растительностью: выравнивание: контур
Растительный материал: Т: трава
Ширина полос / рядов / блоков (м): 3

Мероприятия, связанные с растительностью: Растительный материал: Т: трава
Мероприятия, связанные с растительностью: Растительный материал: Т: трава

Мероприятия, связанные с растительностью: Растительный материал: Т: трава

Виды деревьев/ кустарников: тополь

Инженерные мероприятия: отводной канал
Глубина канав/ям/дамб (м): 0.1
Ширина канав/ям/дамб (м): 0.2
Длина канав/ям/дамб (м): по всему участку

Строительный материал (земля): почва переносится с террасы

Если естественный склон был изменен в результате применения технологии, то текущее состояние склона: 15%

Уклон горизонтальной поверхности: 2%

Растительность используется для укрепления инженерных сооружений

Location: Karsang. Faizabad Rayon

Date: 15.07.2005

Technical knowledge required for field staff / advisors: moderate

Technical knowledge required for land users: moderate

Main technical functions: reduction of slope angle, reduction of slope length

Secondary technical functions: control of dispersed runoff: impede / retard, control of concentrated runoff: impede / retard, control of concentrated runoff: drain / divert, improvement of ground cover, increase / maintain water stored in soil, reduction in wind speed

Aligned: -contour
Vegetative material: T : trees / shrubs
Number of plants per (ha): 200
Vertical interval within rows / strips / blocks (m): 0.5

Aligned: -along boundary
Vegetative material: T : trees / shrubs
Number of plants per (ha): 200

Vegetative measure: aligned: contour
Vegetative material: G : grass
Width within rows / strips / blocks (m): 3

Vegetative measure: Vegetative material: G : grass

Vegetative measure: Vegetative material: G : grass

Vegetative measure: Vegetative material: G : grass

Trees/ shrubs species: poplar trees

If the original slope has changed as a result of the Technology, the slope today is (see figure below): 15.00%

Structural measure: cut-off drain
Depth of ditches/pits/dams (m): 0.1
Width of ditches/pits/dams (m): 0.2
Length of ditches/pits/dams (m): fielding

Construction material (earth): earth moved to form terrace

If the original slope has changed as a result of the Technology, the slope today is: 15%

Lateral gradient along the structure: 2%

Vegetation is used for stabilisation of structures.

作者:

Erik Bühlmann, Berne, Switzerland

4.2 有关投入和成本计算的一般信息

注明雇用劳工的每日平均工资成本:

3.00

4.3 技术建立活动

活动 时间(季度)
1. digging of pits for tree planting spring
2. planting of poplar cuttings spring
3. transplanting of grass clods spring
4. construction of terrace autumn
5. digging of cut-off drain autumn

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 Building terrace ha 1.0 80.0 80.0 100.0
劳动力 Planting trees ha 1.0 75.0 75.0 100.0
设备 tools ha 1.0 10.0 10.0 100.0
技术建立所需总成本 165.0
技术建立总成本,美元 165.0
注释:

Duration of establishment phase: 1 month(s)

4.5 维护/经常性活动

活动 时间/频率
1. pruning of trees eraly spring /annual
2. cutting of grass (grass strips) summer /annual
3. irrigarion/watering of trees summer /weekly
4. clearing cut-off drain from washed in soil rainy season/after every rainfall event

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 Prunning ha 1.0 12.0 12.0 100.0
劳动力 Cutting ha 1.0 3.0 3.0 100.0
技术维护所需总成本 15.0
技术维护总成本,美元 15.0
注释:

costs per 100x100m plot, costs increase if longer field boundary is on contour

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
农业气候带
  • 半湿润
  • 半干旱

growing period 180-210 days

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.
关于地形的注释和进一步规范:

Altitudinal zone: Also 501-1,000 m a.s.l.

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):
  • 中粒(壤土、粉土)
  • 细粒/重质(粘土)
表土有机质:
  • 中(1-3%)
  • 低(<1%)
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。:

Soil fertility: low - high

Soil drainage / infiltration: medium - good

5.6 应用该技术的土地使用者的特征

生产系统的市场定位:
  • 生计(自给)
  • 混合(生计/商业)
非农收入:
  • > 收入的50%
相对财富水平:
  • 平均水平
  • 丰富
机械化水平:
  • 手工作业
  • 机械化/电动
说明土地使用者的其他有关特征:

5% of the land users are rich and own 15% of the land.
75% of the land users are average wealthy and own 70% of the land.

Off-farm income specification: In general, all farmers (including those applying SWC technologies) are highly dependent on off-farm income which in most cases is earned in Russia either by themselves or by their relatives.

Level of mechanization: whenever possible farmer rent tractors for tillage activities. All levels of mechanization are pre-existing.

Market orientation of production system subsistence (self-supply): only surpluses are sold

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
注释:

Average area of land owned or leased by land users applying the Technology also: 0.5-1 ha,

5.8 土地所有权、土地使用权和水使用权

土地所有权:
土地使用权:
  • 租赁

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

降低
增加
注释/具体说明:

due to increase in soil fertility

木材生产

降低
增加
注释/具体说明:

poplar trees gradually harvested for construction purposes

生产区域

降低
增加
注释/具体说明:

area occupied by grass strips, barriers and ditches

土地管理

妨碍
简化
注释/具体说明:

tree barriers impede accessibility with machines

收入和成本

农业收入

降低
增加

社会文化影响

社区机构

削弱
加强

生态影响

水循环/径流

多余水的排放

减少
改良
土壤

土壤水分

降低
增加

土壤流失

增加
降低
减少气候和灾害风险

风速

增加
降低

6.2 该技术的场外影响已经显现

下游洪水

增加
减少

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:

轻度消极

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:

中性/平衡

长期回报:

非常积极

注释:

The terraces were established with the help of bulldozers which is costly, therefore short-term benefits are slightly negative.

6.5 技术采用

如若可行,进行量化(住户数量和/或覆盖面积):

NA

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?:
  • 91-100%
注释:

100% of land user families have adopted the Technology without any external material support

Comments on spontaneous adoption: estimates

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
reduces soil erosion
slows fertility decline
15 years after establishment poplar trees can be harvested, their wood is essential for construction and renovation of houses
编制者或其他关键资源人员认为的长处/优势/机会
reduces slope angle and, hence, decreases risk of soil erosion
relatively simple to implement
moderate establishment costs, low maintenance costs
meets household needs for wood for construction

How can they be sustained / enhanced? trees should be gradually harvested and replaced with new cuttings

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?
loss of cropland due to structure, grass strips and trees
cultivation using a tractor is impossible due to the type of terrain impeding access
poplar trees require irrigation
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 poplar trees used to stabilise the structure require irrigation during summer
farm operations hindered

7. 参考和链接

7.1 信息的方法/来源

模块