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

1.5 参考关于SLM方法（使用WOCAT记录的SLM方法）的调查问卷

Front Bank, Back Ditch on Contour Terraces [中国]

Using contour principle, constructing terraces with the front bank and back ditch in order to control soil & water erosion.

• 编制者： Unknown User
• 12/31/2008 midnight

2.1 技术简介

技术定义:

Contour terrace protection with front bank and three ditches in orchard rehabilitation.

2.2 技术的详细说明

说明:

There is sufficient rainfall in this area and runoff often destroys the existing terraces causing much cost for maintaining. Sluice system on the terraces is important. This technology of the contour terrace protection is to build front bank and three ditches on terraces in order to solve this problem. The method is that building front bank on a terrace edge and digging a ditch on the back terrace as well as digging a ditch upright the terrace along a relatively low rill to induct overflow out.

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:

中国

区域/州/省:

Fujian

具体说明该技术的分布:

• 均匀地分布在一个区域

如果技术均匀分布在一个区域，则指定覆盖的区域（单位为平方千米）:

2.0

如果不知道精确的区域，请注明大致覆盖的区域:

• 1-10 平方千米

注释:

Total area covered by the SLM Technology is 2 km2.

This is a experimental and demonstrating area for applying the "Three Ditches on Terrace" technology.

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:

• 通过项目/外部干预

注释（项目类型等）:

Experiences from the farmers' over years practice.

3.2 应用该技术的当前土地利用类型

农田

• 一年一作
• 多年一作（非木材）
• 乔木与灌木的种植

年作 - 具体指明作物:

• 油料作物 - 花生
• 根/块茎作物 - 红薯、山药、芋头/椰子，其他

• rice

乔木和灌木种植 - 指定作物:

• 水果、其他

每年的生长季节数:

• 2

具体说明:

Longest growing period in days: 365Longest growing period from month to month: Jan - Dec

注释:

Main crops: perennial fruit trees. Rice-peanut-sweat potato etc.

Major land use problems (compiler’s opinion): Lack of scientific planning, irrational development of the hilly and mountain areas causing serious soil loss and land degradation as well as yield decrease.

Major land use problems (land users’ perception): Low yield and much more input (fertilizer, pesticides etc.) needed to obtain the same production.

3.4 供水

该技术所应用土地的供水:

• 混合雨水灌溉

注释:

Water supply also rainfed

3.5 该技术所属的SLM组

• 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

• V1：乔木和灌木覆盖层

注释:

Type of agronomic measures: mulching, contour tillage

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

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: Cn: fertility decline and reduced organic matter content

Main causes of degradation: other natural causes (avalanches, volcanic eruptions, mud flows, highly susceptible natural resources, extreme topography, etc.) specify, education, access to knowledge and support services (lack of knowledge)

Secondary causes of degradation: other human induced causes (specify) (agricultural causes), poverty / wealth (lack of captial)

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

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

具体说明成本计算所用货币:

• 美元

4.3 技术建立活动

4.4 技术建立所需要的费用和投入

注释:

Duration of establishment phase: 72 month(s)

4.5 维护/经常性活动

4.6 维护/经常性活动所需要的费用和投入（每年）

注释:

Area of the terraces.

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:

Terrace sizes such as length, width, height etc.

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:

slopes on average also steep

land forms also mountain slopes.

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。:

soil fertility is medium, low is ranked second highest and high is ranked as lowest.

Soil drainage / infiltration is medium - poor

Soil water storage capacity is medium - low

5.6 应用该技术的土地使用者的特征

说明土地使用者的其他有关特征:

Population density: 200-500 persons/km2

Annual population growth: 0.5% - 1%

20% of the land users are rich and own 30% of the land.
80% of the land users are average wealthy and own 70% of the land.

Off-farm income specification: Additional income increased from fruit trees and cash crops planted in the SWC area.

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:

• 个人

用水权:

• 个人

6.1 该技术的现场影响

生态影响

水循环/径流

土壤

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）:

43 households and 100 % of the area covered

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%

注释:

65% of land user families have adopted the Technology with external material support

27 land user families have adopted the Technology with external material support

Comments on acceptance with external material support: estimates

35% of land user families have adopted the Technology without any external material support

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

Comments on spontaneous adoption: estimates

There is a moderate trend towards spontaneous adoption of the Technology

Comments on adoption trend: More and more farmers are getting to know that the SWC technology can produce benefits.

7.1 信息的方法/来源