技术

Buffer Strip on Steep Sloping Cropland [塔吉克斯坦]

technologies_1003 - 塔吉克斯坦

完整性: 67%

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

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。:

2. SLM技术的说明

2.1 技术简介

技术定义:

A buffer strip of grass is left uncultivated in the middle of an area of steep sloping cropland to help reduce soil erosion.

2.2 技术的详细说明

说明:

A grass strip, approximately 10m wide is left uncultivated across the upper part of the slope. This buffer strip is followed by an adjacent drainage ditch to enhance the technology’s capability of reducing run-on onto the field further down the slope. Neighbouring land users decided to implement the technology in order to reduce soil erosion on their cropland (wheat, chickpeas and flax), and to prevent disputes about land management practices. Upslope and downslope land users reported a significant reduction of observed rill development and fertility decline, emphasising that the benefits of the grass strip offset the area of crop land lost to it. The farmers paid equally for the lost cropland area.

Establishment / maintenance activities and inputs: Apart from the annual digging of the drainage ditch no establishment activities are required, since the grass strip was simply left uncultivated when the former pasture was turned into cropland. The drainage ditch needs to be cleared out of soil on a regular basis; the grass strip is cut for haymaking once during each growing season. The technology is neither cost nor labour intensive and is easy to implement. Farmers state the area lost to the grass growing as the only disadvantage. However, the grass strip alone does only reduce, not fully prevent soil erosion and should therefore be combined with other SWC technologies such as drainage ditches, terraces and/or agroforestry.

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

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)

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

农田

农田

  • 一年一作
年作 - 具体指明作物:
  • 豆科牧草和豆类 - 豌豆
  • 纤维作物 - 亚麻、大麻和其他
  • 谷类 - 小麦(春季)
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: Mar - Aug

注释:

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

Major land use problems (land users’ perception): fertility decline, soil erosion and washing downslope of seeds before they can sprout.

Type of cropping system and major crops comments: winter wheat and sometimes chickpeas are sown in autumn because farmers lack time for land cultivation in spring, flax and also chickpeas are cultivated in spring

3.5 该技术所属的SLM组

  • 改良的地面/植被覆盖
  • 横坡措施

3.6 包含该技术的可持续土地管理措施

农艺措施

农艺措施

  • A1:植被和土壤覆盖层
植物措施

植物措施

  • V2:草和多年生草本植物
注释:

Main measures: vegetative measures

Secondary measures: agronomic measures

Type of vegetative measures: aligned: -contour

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

Secondary types of degradation addressed: Wg: gully erosion / gullying, 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
  • 减少土地退化
注释:

Main goals: mitigation / reduction of land degradation

Secondary 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):

Grass strip with adjacent drainage ditch on an area of steep sloping cropland

Location: Karsang. Faizabad Rayon, RRS

Date: 16.07.2005

Technical knowledge required for field staff / advisors: low

Technical knowledge required for land users: low

Main technical functions: control of dispersed runoff: impede / retard, control of concentrated runoff: impede / retard, reduction of slope length

Secondary technical functions: control of concentrated runoff: drain / divert, improvement of ground cover, increase of infiltration, increase / maintain water stored in soil

Agronomic measure: drainage ditch
Remarks: width: 0.3m, depth: 0.1m, adjacent to grass strip

Aligned: -contour
Vegetative material: G : grass
Width within rows / strips / blocks (m): 10

Slope (which determines the spacing indicated above): 60%

作者:

Erik Bühlmann, Berne, Switzerland

4.2 有关投入和成本计算的一般信息

具体说明成本计算所用货币:
  • 美元
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. no establishment activities needed as grass strip is left uncultivated

4.4 技术建立所需要的费用和投入

注释:

Duration of establishment phase: 0 month(s)

4.5 维护/经常性活动

活动 时间/频率
1. digging of drainage ditch sowing of crop / annual
2. clearing of drainage ditch from washed in soil rainy season / after every rainfall event
3. cutting of grass (haymaking) summer /annual

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 digging of drainage ditch ha 1.0 1.0 1.0
劳动力 clearing of drainage ditch from washed in soil ha 1.0 3.0 3.0
技术维护所需总成本 4.0
技术维护总成本,美元 4.0
注释:

Machinery/ tools: tools: spade, sickle

costs per hectare (including adjacent land upslope and dowslope)

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:

If the technology is not established at the point of the initial cultivation of the cropland, grass clods will need to be transplanted which considerably increases the establishment costs

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.

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: medium - 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
机械化水平:
  • 手工作业
说明土地使用者的其他有关特征:

75% of the land users are average wealthy and own 70% of the land (since technology requires space, poor and very poor farmers will find it difficult to implement).

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: Steep slopes do not allow cultivation by tractor or animal traction

Market orientation of production system mixed (subsistence/ commercial): Only surpluses are sold or exchanged for other goods

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

生产区域

降低
增加
注释/具体说明:

loss of land for crop production

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

土壤

土壤水分

降低
增加

土壤覆盖层

减少
改良

土壤流失

增加
降低
注释/具体说明:

prevented formation of large rills

其它生态影响

soil fertility

decreased
icreased

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:

积极

长期回报:

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:

积极

长期回报:

积极

6.5 技术采用

  • 单例/实验
如若可行,进行量化(住户数量和/或覆盖面积):

Household 1

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

1 land user families have adopted the Technology without any external material support

Comments on spontaneous adoption: estimates

There is no trend towards spontaneous adoption of the Technology

Comments on adoption trend: no other land users have adopted the technology so far

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
protects his land from water erosion
prevents downslope washing of seeds before germination
no conflicts about land management with neighbours upslope
defines field boundaries
编制者或其他关键资源人员认为的长处/优势/机会
effectively reduces formation of large rills on steep sloping cropland

How can they be sustained / enhanced? substitution of drainage ditch with a permanent cut-off drain (graded) would enhance the technologies capability of reducing soil erosion
very little costs for establishment and maintainance
easy to implement, easy to maintain
helps to prevent disputes between neighbouring land users about land management practices

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 area only disadvantage
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?
does only reduce, not fully prevent soil erosion combination with other SWC technologies, such as graded drainage ditches (TAJ10)
occupies a relatively large amount of space

7. 参考和链接

7.1 信息的方法/来源

模块