Vetiver Hedge Barrier along Seashore and River bank [China]
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- Update:
- Compiler: Unknown User
- Editor: –
- Reviewers: Alexandra Gavilano, David Streiff
vetiver hedge barrier in huo garden
technologies_961 - China
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- Vetiver Hedge Barrier along Seashore and River bank: Maart 6, 2017 (inactive)
- Vetiver Hedge Barrier along Seashore and River bank: Maart 21, 2017 (inactive)
- Vetiver Hedge Barrier along Seashore and River bank: Maart 23, 2017 (inactive)
- Vetiver Hedge Barrier along Seashore and River bank: Sept. 4, 2019 (public)
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Expand all Collapse all1. General information
1.2 Contact details of resource persons and institutions involved in the assessment and documentation of the Technology
Key resource person(s)
SLM specialist:
1.3 Conditions regarding the use of data documented through WOCAT
When were the data compiled (in the field)?
21/11/1997
The compiler and key resource person(s) accept the conditions regarding the use of data documented through WOCAT:
Ja
2. Description of the SLM Technology
2.1 Short description of the Technology
Definition of the Technology:
Uprightness to the main windward, planting Vetiver hedge as barriers to prevent wind erosion.
2.2 Detailed description of the Technology
Description:
This technology is to use a good SWC vegetable --- Vetiver to form permanent hedge barrier. The barrier is upright to the main windward or along the river & dike bank. It is pruned 1-2 times after 2 months of planting. It can grow at about 1.5 m high within one year. Vetiver is a perennial plant, and has a strong fibrous roots, which can stretch 3 m beneath soils. It breeds by root & cane, and has strong adaptability. Vetiver is hygrophobe and can endure poor and saline-alkali soil. It is regarded as a saved money & low in labor input but with good benefits. This SWC technology is worth to be applied extensively.
2.3 Photos of the Technology
2.5 Country/ region/ locations where the Technology has been applied and which are covered by this assessment
Country:
China
Region/ State/ Province:
Fujian
Map
×2.6 Date of implementation
If precise year is not known, indicate approximate date:
- less than 10 years ago (recently)
2.7 Introduction of the Technology
Specify how the Technology was introduced:
- through projects/ external interventions
Comments (type of project, etc.):
From India.
3. Classification of the SLM Technology
3.1 Main purpose(s) of the Technology
- reduce, prevent, restore land degradation
3.2 Current land use type(s) where the Technology is applied
Cropland
- Annual cropping
Main crops (cash and food crops):
Rice-peanut-sweat potato etc.
Comments:
Major land use problems (compiler’s opinion): Serious wind erosion damages crops and cultivated land along the seashore.
Major land use problems (land users’ perception): Crops were often damaged and crop yield is decreasing gradually.
Type of cropping system and major crops comments: Rice-peanut-sweat potato etc.
3.3 Further information about land use
Water supply for the land on which the Technology is applied:
- rainfed
Comments:
Water supply also full irrigation
Number of growing seasons per year:
- 1
Specify:
Longest growing period in days: 365Longest growing period from month to month: Jan - Dec
3.4 SLM group to which the Technology belongs
- surface water management (spring, river, lakes, sea)
3.5 Spread of the Technology
Specify the spread of the Technology:
- evenly spread over an area
If the Technology is evenly spread over an area, indicate approximate area covered:
- 0.1-1 km2
Comments:
Total area covered by the SLM Technology is 0.5 m2.
The SWC area is about 0.5 sqkm.
3.6 SLM measures comprising the Technology
vegetative measures
- V1: Tree and shrub cover
3.7 Main types of land degradation addressed by the Technology
soil erosion by wind
- Et: loss of topsoil
chemical soil deterioration
- Cn: fertility decline and reduced organic matter content (not caused by erosion)
water degradation
- Ha: aridification
Comments:
Main type of degradation addressed: Et: loss of topsoil
Secondary types of degradation addressed: Cn: fertility decline and reduced organic matter content, Ha: aridification
4. Technical specifications, implementation activities, inputs, and costs
4.2 Technical specifications/ explanations of technical drawing
Technical knowledge required for field staff / advisors: low
Technical knowledge required for land users: moderate
Main technical functions: Wind-break
Secondary technical functions: improvement of ground cover, increase in organic matter, increase of infiltration, increase / maintain water stored in soil, water harvesting / increase water supply, Increase in soil fertility
Mulching
Material/ species: Vetiver
Quantity/ density: 10000
Remarks: alignment
Grass species: Vetiver
Slope (which determines the spacing indicated above): 30.00%
If the original slope has changed as a result of the Technology, the slope today is (see figure below): 20.00%
Gradient along the rows / strips: 50.00%
4.3 General information regarding the calculation of inputs and costs
Specify currency used for cost calculations:
- US Dollars
Indicate exchange rate from USD to local currency (if relevant): 1 USD =:
8.3
Indicate average wage cost of hired labour per day:
3.61
4.4 Establishment activities
Activity | Type of measure | Timing | |
---|---|---|---|
1. | treating material | Vegetative | mid-March |
2. | soil preparation | Vegetative | early March |
3. | planting | Vegetative | mid-March |
4. | water | Vegetative | planting day |
4.5 Costs and inputs needed for establishment
Comments:
Duration of establishment phase: 24 month(s)
4.6 Maintenance/ recurrent activities
Activity | Type of measure | Timing/ frequency | |
---|---|---|---|
1. | pruning | Vegetative | mid-May / |
2. | pruning | Vegetative | early June / |
3. | applying fertilizer | Vegetative | later May / |
4.7 Costs and inputs needed for maintenance/ recurrent activities (per year)
Comments:
Areas of vetiver cover.
4.8 Most important factors affecting the costs
Describe the most determinate factors affecting the costs:
seeds and labor.
5. Natural and human environment
5.1 Climate
Annual rainfall
- < 250 mm
- 251-500 mm
- 501-750 mm
- 751-1,000 mm
- 1,001-1,500 mm
- 1,501-2,000 mm
- 2,001-3,000 mm
- 3,001-4,000 mm
- > 4,000 mm
Specify average annual rainfall (if known), in mm:
1182.00
Agro-climatic zone
- humid
5.2 Topography
Slopes on average:
- flat (0-2%)
- gentle (3-5%)
- moderate (6-10%)
- rolling (11-15%)
- hilly (16-30%)
- steep (31-60%)
- very steep (>60%)
Landforms:
- plateau/plains
- ridges
- mountain slopes
- hill slopes
- footslopes
- valley floors
Altitudinal zone:
- 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.
Indicate if the Technology is specifically applied in:
- not relevant
5.3 Soils
Soil depth on average:
- very shallow (0-20 cm)
- shallow (21-50 cm)
- moderately deep (51-80 cm)
- deep (81-120 cm)
- very deep (> 120 cm)
Soil texture (topsoil):
- coarse/ light (sandy)
Topsoil organic matter:
- low (<1%)
If available, attach full soil description or specify the available information, e.g. soil type, soil PH/ acidity, Cation Exchange Capacity, nitrogen, salinity etc.
Soil fertility: very low
Soil drainage / infiltration: good
Soil water storage capacity: very low
5.6 Characteristics of land users applying the Technology
Off-farm income:
- less than 10% of all income
Relative level of wealth:
- average
Level of mechanization:
- manual work
- animal traction
Indicate other relevant characteristics of the land users:
Population density: 200-500 persons/km2
Annual population growth: < 0.5%
30% of the land users are average wealthy and own 20% of the land.
Off-farm income specification: This is an experimental project with small area so that not many persons involved in it.
5.8 Land ownership, land use rights, and water use rights
Land ownership:
- communal/ village
- individual, titled
6. Impacts and concluding statements
6.1 On-site impacts the Technology has shown
Ecological impacts
Water cycle/ runoff
surface runoff
Quantity before SLM:
60
Quantity after SLM:
35
Soil
soil loss
Quantity before SLM:
4.5
Quantity after SLM:
2
6.4 Cost-benefit analysis
How do the benefits compare with the establishment costs (from land users’ perspective)?
Short-term returns:
neutral/ balanced
Long-term returns:
very positive
How do the benefits compare with the maintenance/ recurrent costs (from land users' perspective)?
Short-term returns:
positive
Long-term returns:
very positive
6.5 Adoption of the Technology
- more than 50%
If available, quantify (no. of households and/ or area covered):
100 households and 100% of the area
Of all those who have adopted the Technology, how many have did so spontaneously, i.e. without receiving any material incentives/ payments?
- 50-90%
Comments:
50% of land user families have adopted the Technology with external material support
30 land user families have adopted the Technology with external material support
Comments on acceptance with external material support: estimates
50% of land user families have adopted the Technology without any external material support
30 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: Climate here is quite suitable for vetiver growing and it is easy to plant with low input and high output.
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