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

1.3 关于使用通过WOCAT记录的数据的条件

（现场）数据是什么时候汇编的？:

01/08/2001

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:

An agroforestry system which combines coffee with shade trees - including fruit, timber and leguminous species - in a systematic fashion.

2.2 技术的详细说明

说明:

Shade-grown coffee is a traditional and complex agroforestry system where coffee is associated with various other species in different storeys (or ‘levels’). This provides ecologically and economically sustainable use of natural resources. Café arbolado, the example promoted by PRODAF (Programme for Agroforestry Development, see related approach: ‘Agroforestry Extension’) since 1987 is one technical option for shade-grown coffee.
While based on a traditional system the shade-grown coffee technology has a specific layout, and a reduced number of intercropped species. It comprises: (1) Coffee (Coffea arabica) planted on the contour at approximately 5,000 plants per hectare; (2) Associated trees: fruits, most commonly oranges (120 trees/ha), cedar (Cedrela odorata) or caoba (Swietenia macrophylla) for timber (60 trees/ha) and also two legumes, poró (Erythrina poeppigiana) and chalum (Inga sp.) which act as shade trees and at the same time improve the soil by fixing nitrogen (60 trees/ha). Farmers often include bananas in the system. In some cases, orange trees have partly been substituted by avocado (Persea americana), soursop (Anona muricata), and/or jocotes (Spondias purpurea). The latter two command good market prices and do not compete with labour needed for harvesting and other activities; (3) Supportive soil conservation measures on steep slopes to avoid soil erosion, predominantly strips of lemon grass (Cymbopogon citratus) on the contour, retention ditches and soil cover improvement; (4) Fertilizers: both organic and inorganic combined.

Full establishment of a shaded coffee plot can be achieved in two years - after replanting trees which fail to establish. Coffee yields a harvest after two years, but timber from associated trees can be expected after only 25 years. The trees grown in association allow more efficient cycling of nutrients (because of deep rooting and nitrogen fixation) and provide a favourable microclimate for coffee. This production system is well adapted to the local biophysical and socio-economic conditions, characterised by steep erosion-prone mountain slopes, humid climate and small to medium scale agriculture. Based on café arbolado a new, and further developed system of ‘sustainable coffee’ has evolved. This involves certification of the overall process and is attractive to the growing number of environmentally conscious consumers.

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

2.7 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

3.1 该技术的主要目的

• 改良生产
• 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

注释:

Major land use problems (compiler’s opinion): Severe deforestation, inappropriate land management practices (monocultures on steep slopes; lack of conservation measures); resulting in physical (soil erosion) and chemical (fertility decline) degradation of agricultural soils, low productivity and low yields.

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

具体说明:

Longest growing period in days: 270, Longest growing period from month to month: Apr - Dec

3.4 该技术所属的SLM组

• 农业林学

3.5 技术传播

注释:

Total area covered by the SLM Technology is 400 m2.

3.6 包含该技术的可持续土地管理措施

注释:

Type of agronomic measures: mixed cropping / intercropping
Type of vegetative measures: aligned: -contour

3.7 该技术强调的主要土地退化类型

注释:

Main causes of degradation: deforestation / removal of natural vegetation (incl. forest fires), over-exploitation of vegetation for domestic use, overgrazing, education, access to knowledge and support services (Falta de conocimientos), Falta de tecnología
Secondary causes of degradation: poverty / wealth (Falta de capital), Falta de fortaleza de legislación / de autoridad

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

4.1 该技术的技术图纸

4.2 技术规范/技术图纸说明

Example layout of coffee grown below shade trees: various species are used for shade, and each has intrinsic value of its own - orange trees (for fruit) are associated with strips of lemon grass, tall cedars (for timber) are planted in rows alternating with Erythrina sp. (for fertility improvement). Optionally, banana trees are interplanted.

Technical knowledge required for field staff / advisors: high
Technical knowledge required for land users: high

Main technical functions: improvement of ground cover, increase in organic matter, increase of infiltration, increase in soil fertility
Secondary technical functions: control of raindrop splash, control of concentrated runoff, control of dispersed runoff

Agronomic measure: organic/chem. Fertilization
Aligned: -contour
Vegetative material: T : trees / shrubs
Number of plants per (ha): 60-120
Spacing between rows / strips / blocks (m): 12
Width within rows / strips / blocks (m): 6

Vegetative measure: grass strips
Vegetative material: G : grass
Spacing between rows / strips / blocks (m): 12

Vegetative measure: aligned shrubs
Vegetative material: G : grass
Number of plants per (ha): 5000
Spacing between rows / strips / blocks (m): 1.8
Width within rows / strips / blocks (m): 0.8

Vegetative measure: Vegetative material: G : grass
Trees/ shrubs species: poró (Erythrina poeppigiana), chalum (Inga spp.)
Fruit trees / shrubs species: Coffee, oranges, cedar or caoba for timber, bananas, oranges or avocado, soursop , and/or jocotes
Grass species: lemon grass (Cymbopogon citratus)
Structural measure: retention ditches (supp.)

4.4 技术建立活动

	活动	措施类型	时间
1.	Clearing of land.	植物性的	beginning of rainy season (March/April)
2.	Surveying for contour planting of coffee, grass strips, trees etc.	植物性的	beginning of rainy season (March/April)
3.	Digging holes, fertilizer application.	植物性的	beginning of rainy season (March/April)
4.	Planting coffee, trees, grass barriers etc along the contour.	植物性的	beginning of rainy season (March/April)
5.	Replanting coffee that fails to establish in first year.	植物性的	beginning of rainy season (March/April)

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	labour	ha	1.0	700.0	700.0	100.0
植物材料	Seedlings: poró/cedar	ha	1.0	15.0	15.0
植物材料	Seedlings: orange trees	ha	1.0	220.0	220.0
植物材料	Seedlings: coffee	ha	1.0	1240.0	1240.0
肥料和杀菌剂	fertilizer	ha	1.0	350.0	350.0
其它	transport	ha	1.0	10.0	10.0
技术建立所需总成本					2535.0

注释:

Duration of establishment phase: 24 month(s)

4.6 维护/经常性活动

	活动	措施类型	时间/频率
1.	Fertilization	农业学的	May, July, November / 1–3 times
2.	Pest control (spraying)	农业学的	May, September / 1–2 times
3.	Application of lime.	农业学的
4.	Pest control (spraying)	农业学的	May, September / 1–2 times
5.	Application of lime.	农业学的
6.	Weed control	植物性的	Weed control
7.	Pruning coffee	植物性的	February or March /
8.	Pruning shade trees.	植物性的

4.7 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	labour	ha	1.0	28.0	28.0	100.0
肥料和杀菌剂	fertilizer	ha	1.0	175.0	175.0	100.0
其它	transport	ha	1.0	127.0	127.0	100.0
技术维护所需总成本					330.0

注释:

Machinery/ tools: shovel, machete, knapsack
The costs of planting coffee are included. Shade-grown coffee is an integrated production system, and thus costs for coffee and the agroforestry component cannot be disaggregated.

5.1 气候

5.2 地形

5.3 土壤

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:

Off-farm income specification: subdivision of land (through inheritance), improved communications linking the capital with rural areas, and a better system of education all provide for increased off-farm income earning opportunities

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:

• 个人，未命名
• 个人，有命名

土地使用权:

• 个人

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

土壤

减少气候和灾害风险

6.2 该技术的场外影响已经显现

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

注释:

100% of land user families have adopted the Technology with external material support
There is a little trend towards spontaneous adoption of the Technology. There is a slight trend towards growing spontaneous adoption - after the end of the programme. However, the crisis triggered by the big drop in coffee prices has had a negative impact on adoption of the technology. Many coffee farms have been abandoned specially those located under 800-900 m a.s.l. where coffee is of a lower quality due to climatic conditions.

6.7 该技术的优点/长处/机会

编制者或其他关键资源人员认为的长处/优势/机会
Increased overall crop production and diversity: coffee, fruit, timber, legumes
Different crops harvested at different periods, gives better distribution of labour (and income) throughout the year; participation of all family members; increased food security and minimal economic risk
Improved profitability.
More efficient use of nutrients, nitrogen fixation, lower inputs of fertilizers.
Increased pest resistance, lower external inputs of biocides. Coffe plants continue to produce over 25 years due to optimal microclimate (only 15 years in conventional system without trees). Production system adapted to steep erosion prone slopes, thus a productive alternative to simple afforestation. Not labour-intensive compared with structural measures of SWC. High commercial potential of environmentally friendly produced coffee due to new market trends. Price increase for agricultural inputs has favoured a shift from conventional to shade-grown coffee, the latter being a system with a higher ratio of applied inputs/harvested yields although total production is usually lower than in modern coffee plantations.

6.8 技术的弱点/缺点/风险及其克服方法

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？
Slight decrease in production of coffee per hectare compared to the conventional pure stand	Compensate by additional benefits: wood production, fruit, etc.
Short-term negative cost-benefit ratio in the first 4–5 years: Costintensive technology in the establishment phase.	Identify fast growing species or species providing intermediate products.
Timber harvest only in the long term (after 25 years)

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:

PRODAF . Sistema agroforestal – Café arbolado, Ecología y economía para el progreso, Puriscal, Costa Rica. 1994.

标题、作者、年份、ISBN:

Neuenschwander E . Agorforstwirtschaftlicher Kaffeeanbau als Lösungsansatz für eine ökologisch nachhaltige Bodennutzung der Hanglagen inCosta Rica: eine Fallstudie im Rahmen des WOCAT Programms, unpublished MSc thesis. 2002.

可以从哪里获得?成本如何?

Science Faculty, University of Berne, Centre for Developmentand Environment