Gully erosion management [ອີທິໂອເປຍ]
- ການສ້າງ:
- ປັບປູງ:
- ຜູ້ສັງລວມຂໍ້ມູນ: Gizaw Desta Gessesse
- ບັນນາທິການ: –
- ຜູ້ທົບທວນຄືນ: Deborah Niggli
Borebore lemat (Amharic)
technologies_1597 - ອີທິໂອເປຍ
ເບິ່ງພາກສ່ວນ
ຂະຫຍາຍທັງໝົດ ຍຸບທັງໝົດ1. ຂໍ້ມູນທົ່ວໄປ
1.2 ຂໍ້ມູນ ການຕິດຕໍ່ພົວພັນ ຂອງບຸກຄົນທີ່ສໍາຄັນ ແລະ ສະຖາບັນ ທີ່ມີສ່ວນຮ່ວມ ໃນການປະເມີນເອກກະສານ ເຕັກໂນໂລຢີ
ຜຸ້ຊ່ຽວຊານ ດ້ານການຄຸ້ມຄອງ ທີ່ດິນແບບຍືນຍົງ:
Bekure Melese
WLRC
ຊື່ໂຄງການ ທີ່ອໍານວຍຄວາມສະດວກ ໃນການສ້າງເອກກະສານ/ປະເມີນ ເຕັກໂນໂລຢີ (ຖ້າກ່ຽວຂ້ອງ)
Water and Land Resource Centre Project (WLRC)1.3 ເງື່ອນໄຂ ກ່ຽວກັບ ການນໍາໃຊ້ຂໍ້ມູນເອກະສານ ທີ່ສ້າງຂື້ນ ໂດຍຜ່ານ ອົງການພາບລວມຂອງໂລກ ທາງດ້ານແນວທາງ ແລະ ເຕັກໂນໂລຢີ ຂອງການອານຸລັກ ທໍາມະຊາດ (WOCAT)
ຜູ້ປ້ອນຂໍ້ມູນ ແລະ ບຸກຄົນສຳຄັນ ທີ່ໃຫ້ຂໍ້ມູນ (ຫຼາຍ) ຍິນຍອມ ຕາມເງື່ອນໄຂ ໃນການນຳໃຊ້ຂໍ້ມູນ ເພື່ອສ້າງເປັນເອກກະສານຂອງ WOCAT:
ແມ່ນ
1.4 ແຈ້ງການວ່າ ດ້ວຍຄວາມຍືນຍົງຂອງ ເຕັກໂນໂລຢີ
ການນໍາໃຊ້ ເຕັກໂນໂລຢີ ດັ່ງກ່າວໄດ້ອະທິບາຍ ເຖິງບັນຫາ ກ່ຽວກັບ ການເຊື່ອມໂຊມຂອງດິນບໍ? ຖ້າບໍ່ດັ່ງນັ້ນ ມັນບໍ່ສາມາດ ຢັ້ງຢືນໄດ້ວ່າ ເປັນເຕັກໂນໂລຊີ ໃນການຄຸ້ມຄອງ ທີ່ດິນແບບຍືນຍົງ? :
ບໍ່ແມ່ນ
1.5 ອ້າງອີງເຖິງແບບສອບສອບຖາມ (ຫຼາຍ) ທາງດ້ານວິທີການ ໃນການຄຸ້ມຄອງ ທີ່ດິນແບບຍືນຍົງ
Community Organizations and Mobilization for Soil and Water … [ອີທິໂອເປຍ]
Community mobilization for soil and water conservation work in a watershed planning unit is an approach for collective action by organizing all active labor forces living in the kebele/peasant association into development group of 20-30 members and further divide into 1:5 work force to implement construction of soil and water …
- ຜູ້ສັງລວມຂໍ້ມູນ: Gizaw Desta Gessesse
'Cut and Carry' Grazing system or 'Zero Grazing' … [ອີທິໂອເປຍ]
Cut and carry grazing system (alternatively called zero grazing) is an approach where the community is consulted to identify and agree on areas to be closed and protected from free grazing; establish user groups are established to share the fodder biomass harvested from communal closed areas equitably; they utilize tree/shrub …
- ຜູ້ສັງລວມຂໍ້ມູນ: Gizaw Desta Gessesse
2. ການອະທິບາຍ ເຕັກໂນໂລຢີ ຂອງການຄຸ້ມຄອງ ທີ່ດິນແບບຍືນຍົງ
2.1 ຄໍາອະທິບາຍສັ້ນຂອງ ເຕັກໂນໂລຢີ
ການກຳໜົດຄວາມໝາຍ ຂອງເຕັກໂນໂລຢີ:
Gully erosion management is the application of combination of practices to control excess or concentrated runoff generation in the gully upstream catchment area, divert excess runoff upstream of gully heads and control further development of gully using appropriate structural and vegetative measures in the head, bed and sides of the gully and eventually convert into productive land through the consultation and involvement of local community.
2.2 ການອະທິບາຍ ລາຍລະອຽດ ຂອງເຕັກໂນໂລຢີ
ການພັນລະນາ:
Gully erosion occurs on cultivated and grazing/pasture lands. Gully erosion management is a practice aimed to rehabilitate and protect further development of gullies and change into productive land. It involves both runoff management and erosion control activities. Gully management and treatment is different at upstream catchment area, gully head and gully section. Proper land management practices and slope treatment measures such as terraces, infiltration ditches and grass or shrub hedgerows are taking place on upstream catchment of the gully in order to reduce the rate of surface runoff. The excess runoff above the gully head is safely drained using cutoff drains into natural or properly vegetated waterways in order to reduce the surface water entering into the gully and protect the constructed physical and biological measures being washed away. Before treating gully sections, for the purpose of stability of structures and quick healing, the gully should be reshaped and planted with grass sod. Gully wall reshaping is cutting off steep slopes of active gully flanks in to gentle slope of minimum at 45% slope, up to two-third of the total depth of the gully and constructing small trenches along contours for re-vegetating slanted part of the gully walls and beds. If the gully is wide and has meandering nature with huge accumulation of runoff flowing down, it requires constructing of retaining walls, to protect displaced (not yet stabilized) soils and soil materials and the sidewalls of the reshaped gully. Stabilization of gully sections involves the use of structural and vegetative measures in the head, floor and side of the gully. The construction of physical structures inside the gully section is followed by establishment of biological measures.
Purposes of gully erosion management are: 1) rehabilitate the land damaged due to gully erosion, 2) prevent further expansion and development of gully erosion, and 3) convert the land lost by gully erosion to productive land.
Gully erosion management begins with assessment and mapping of gully erosion that helps to have an overview of erosion, to document extent of damage, to identify the nature and causes of gully formation, and gives relevant information to design appropriate measures. At establishment stage, gully management requires: catchment treatment using different land treatment measures; runoff diversion by cutoff drain; and stabilization of gully sections by physical structures and vegetative measures. Stones for the construction of terraces, cutoff drains and waterways are required. Depending on the nature of gully and available material for construction, either stones, sand bags, brush woods, bamboo mat, gabion or concrete (sand, gravel and cement) are needed for constructing check-dams in a gully section. Different tree/shrub seedlings, grass cuttings, and seedlings of fruit trees are required to reinforce and stabilize the gully sections. The respective labor requirement for stone collection, construction of retaining wall, and gully reshaping is 0.5m3/person day, 5m/person day, and 1m3/person day. Approximately 0.25, 0.50, 0.50, 0.50 , and 1.0 m3/person day is required to construct gabion, loose stone, arc weir, sand bag, and bamboo mat check-dams respectively. About 3.0 m/person day is needed to construct brushwood check dams. The treated gullies should be checked regularly. The maintenance requirement is closely monitored and immediate repair is essential to avoid further damage and eventual collapse of structures. The inputs important for maintenance include stones or other materials for check dams, seedlings to replant areas covered with non-survived seedlings.
Gully erosion is prevalent in areas where excess runoff occurs in high rainfall areas associated with moderate to high erodible soils. It occurs in range of wet highland to moist Kolla areas where annual rainfall exceeds 900mm. Its occurrence is more frequent in heavy clay soils (Vertisols) characterized by low infiltration and in clay soils (like Nitosols) characterized by low organic matter. Often, gully formation occurs on overgrazed pasture lands and inappropriately managed crop lands. Gully erosion control requires mobilization of high input or materials and labor. Larger gullies need to be rehabilitated and treated through community labor mobilization. Subsequent maintenance activities, monitoring and benefit sharing should be made by the user groups who are entitled to utilize the benefits.
The living condition depends on subsistence crop-livestock mixed farming. On average households have 5-6 family size. Crop production is meant for home consumption with small surplus for local market. The services related to water supply, energy supply, and infrastructure are low. Besides it is an asset, animals often used to cope shocks during drought periods.
2.3 ຮູບພາບຂອງເຕັກໂນໂລຢີ
2.5 ປະເທດ / ເຂດ / ສະຖານທີ່ບ່ອນທີ່ ເຕັກໂນໂລຢີ ໄດ້ຮັບການນໍາໃຊ້ ແລະ ທີ່ຖືກປົກຄຸມດ້ວຍການປະເມີນຜົນ
ປະເທດ:
ອີທິໂອເປຍ
ພາກພື້ນ / ລັດ / ແຂວງ:
Amhara National Regional State (ANRS)
ຂໍ້ມູນເພີ່ມເຕີມຂອງສະຖານທີ່:
Dembecha/Mecha/Yilmana Densa
2.6 ວັນທີໃນການຈັດຕັ້ງປະຕິບັດ
ຖ້າຫາກວ່າ ບໍ່ຮູ້ຈັກ ປີທີ່ຊັດເຈນ ແມ່ນໃຫ້ປະມານ ວັນທີເອົາ:
- ຕໍ່າກວ່າ 10 ປີ ຜ່ານມາ (ມາເຖິງປະຈຸບັນ)
2.7 ການນໍາສະເໜີ ເຕັກໂນໂລຢີ
ໃຫ້ລະບຸ ເຕັກໂນໂລຢີ ໄດ້ຖືກຈັດຕັ້ງປະຕິບັດຄືແນວໃດ?
- ໃນໄລຍະການທົດລອງ / ການຄົ້ນຄວ້າ
- ໂດຍຜ່ານໂຄງການ / ການຊ່ວຍເຫຼືອຈາກພາຍນອກ
ຄວາມຄິດເຫັນ (ປະເພດ ໂຄງການ ແລະ ອື່ນໆ):
Since gully erosion management requires combination of practices, many actors mainly research, local development actors, community, and project are involved in the development of the technology
3. ການໃຈ້ແຍກ ເຕັກໂນໂລຢີ ໃນການຄຸ້ມຄອງ ດິນແບບຍືນຍົງ
3.1 ຈຸດປະສົງຫຼັກ (ຫຼາຍ) ຂອງເຕັກໂນໂລຢີ
- ຫຼຸດຜ່ອນ, ປ້ອງກັນ, ຟື້ນຟູ ການເຊື່ອມໂຊມຂອງດິນ
3.2 ປະເພດການນໍາໃຊ້ທີ່ດິນ ໃນປະຈຸບັນ() ທີ່ເຕັກໂນໂລຢີ ໄດ້ຖືກນໍາໃຊ້
ດິນທີ່ປູກພືດ
- ການປູກພືດປະຈໍາປີ
ທົ່ງຫຍ້າລ້ຽງສັດ
ທົ່ງຫຍ້າລ້ຽງສັດທໍາມະຊາດ:
- ແບບເຄິ່ງຂັງ / ເຄິ່ງປ່ອຍ
ທົ່ງຫຍ້າລ້ຽງສັດແບບສຸມ / ການຜະລິດອາຫານສັດ:
- ຕັດຫຍ້າ ແລະ ຂົນຫຍ້າ / ບໍ່ມີທົ່ງຫຍ້າທໍາມະຊາດ
ຄວາມຄິດເຫັນ:
Major land use problems (compiler’s opinion): Land degradation due to different forms of soil erosion and nutrient depletion, overgrazing, shortage of pasture lands and its low productivity, excessive and inappropriate construction of traditional ditches, and increased pressure on trees for the purpose of fuel wood and timber.
Major land use problems (land users’ perception): Soil erosion and soil nutrient depletion, shortage of cultivated land, shortage of grazing land and wood for fuel wood
The type of grazing is often free grazing on communal grazing lands/pasture, supplemented with crop residues and zero grazing combined with improved forages
3.3 ຂໍ້ມູນເພີ່ມເຕີມກ່ຽວກັບການນໍາໃຊ້ທີ່ດິນ
ການສະໜອງນໍ້າ ໃນພື້ນທີ່ ທີ່ໄດ້ນໍາໃຊ້ ເຕັກໂນໂລຢີ:
- ນໍ້າຝົນ
ຈໍານວນ ລະດູການ ປູກໃນປີໜຶ່ງ:
- 1
ລະບຸ ຊະນິດ:
Longest growing period in days: 220, Longest growing period from month to month: May to December; Second longest growing period in days: 180, Second longest growing period from month to month: June to November
ຄວາມໜາແໜ້ນ ຂອງສັດລ້ຽງ (ຖ້າຫາກວ່າກ່ຽວຂ້ອງ):
> 100 LU /km2
3.4 ການນໍາໃຊ້ເຕັກໂນໂລຢີ ທີ່ຢູ່ໃນກຸ່ມການຄຸ້ມຄອງ ທີ່ດິນແບບຍືນຍົງ
- ການປິດພື້ນທີ່ (ຢຸດການນໍາໃຊ້, ເພື່ອປູກເປັນປ່າຟື້ນຟູ)
3.5 ການຂະຫຍາຍເຕັກໂນໂລຢີ
ໃຫ້ລະບຸ ການແຜ່ຂະຫຍາຍ ເຕັກໂນໂລຢີ:
- ແຜ່ຂະຫຍາຍຢ່າງໄວວາໃນພື້ນທີ່
ຖ້າຫາກວ່າ ເຕັກໂນໂລຢີ ໄດ້ແຜ່ຂະຫຍາຍທົ່ວພື້ນທີ່ືື ຢ່າງສະໜ່ຳສະເໝີ, ໃຫ້ລະບຸ ເນື້ອທີ່ ໂດຍການຄາດຄະເນ:
- 10-100 ກມ 2
3.6 ມາດຕະການ ການຄຸ້ມຄອງ ທີ່ດິນແບບຍືນຍົງ ປະກອບດ້ວຍ ເຕັກໂນໂລຢີ
ມາດຕະການ ທາງດ້ານພືດພັນ
- V1: ເປັນໄມ້ຢືນຕົ້ນ ແລະ ການປົກຫຸ້ມຂອງໄມ້ພຸ່ມ
- V2: ຫຍ້າ ແລະ ພືດສະໝູນໄພທີ່ເປັນໄມ້ຢືນຕົ້ນ
ມາດຕະການໂຄງສ້າງ
- S2: ຄັນຄຸ, ແຄມຕາຝັ່ງ
- S3: ຮ່ອງ, ຄອງນໍ້າ, ທາງໄຫຼນໍ້າ
- S4: ລະດັບຮ່ອງ, ຂຸມ
- S6: ແລວກັນເຈື່ອນ, ຮົ້ວ
- S11: ອື່ນໆ
ຄວາມຄິດເຫັນ:
Type of vegetative measures: aligned: -contour, aligned: -along boundary
3.7 ປະເພດດິນເຊື່ອມໂຊມ ຫຼັກທີ່ໄດ້ນໍາໃຊ້ ເຕັກໂນໂລຢີ
ດິນເຊາະເຈື່ອນ ໂດຍນໍ້າ
- Wg: ການເຊາະເຈື່ອນຮ່ອງນ້ຳ / ຫ້ວຍ
- Wo: ຜົນກະທົບ ຂອງການເຊື່ອມໂຊມ ຕໍ່ພື້ນທີ່ພາຍນອກ
ການເຊື່ອມໂຊມ ທາງຊີວະພາບ
- Bc: ການຫຼຸດຜ່ອນການປົກຫຸ້ມຂອງພືດ
ຄວາມຄິດເຫັນ:
Main causes of degradation: deforestation / removal of natural vegetation (incl. forest fires), over-exploitation of vegetation for domestic use, overgrazing, Heavy / extreme rainfall (intensity/amounts), population pressure
Secondary causes of degradation: soil management, crop management (annual, perennial, tree/shrub), urbanisation and infrastructure development (Urbanization and infrastructure development induced excessive compaction, unprotected drainage systems and lead to gully formation), floods, land tenure (Land under undefined or communal use of grazing lands are subject to mismanagement that result in gully formation), poverty / wealth
3.8 ການປ້ອງກັນ, ການຫຼຸດຜ່ອນ, ຫຼືການຟື້ນຟູຂອງການເຊື່ອມໂຊມຂອງດິນ
ໃຫ້ລະບຸ ເປົ້າໝາຍ ເຕັກໂນໂລຢີ ທີ່ພົວພັນ ກັບຄວາມເຊື່ອມໂຊມຂອງດິນ:
- ຫຼຸດຜ່ອນການເຊື່ອມໂຊມຂອງດິນ
- ການຟື້ນຟູ / ຟື້ນຟູດິນທີ່ຊຸດໂຊມ
4. ຂໍ້ກໍາໜົດ, ກິດຈະກໍາການປະຕິບັດ, ວັດຖຸດິບ, ແລະຄ່າໃຊ້ຈ່າຍ
4.1 ເຕັກນິກ ໃນການແຕ້ມແຜນວາດ ເຕັກໂນໂລຢີ
ຜູ້ຂຽນ:
MOA, 2005, Water and Land Resource Center
4.2 ການແຕ້ມແຜນວາດອະທິບາຍເຕັກນິກ
A reshaped gully section treated with an integrated gully control measures including check dams made of loose stone and wooden and vegetative tree/shrub and grass hedgerows planted on the sides of gullies.
Location: Debre Mewi Learning Watershed. Yilmana Densa/West Gojam/Amhara Region
Date: 6/27/2016
Technical knowledge required for field staff / advisors: high (It requires knowledge of peak runoff and runoff management and skills to integrate different measures)
Technical knowledge required for land users: high (It needs skills to construct physical measures, and regular monitoring and maintenance of practices. The users must know and understand the growth nature and harvesting stage tree/shrub, grass species)
Main technical functions: control of concentrated runoff: impede / retard, control of concentrated runoff: drain / divert, reduction of slope angle
Secondary technical functions: reduction of slope length, improvement of ground cover, stabilisation of soil (eg by tree roots against land slides), increase of infiltration
Aligned: -contour
Vegetative material: T : trees / shrubs, G : grass
Number of plants per (ha): 2600
Spacing between rows / strips / blocks (m): 2-3
Vertical interval within rows / strips / blocks (m): 0.5-1.0
Width within rows / strips / blocks (m): 0.5
Aligned: -graded strips
Vegetative material: T : trees / shrubs
Aligned: -along boundary
Number of plants per (ha): 200
Vertical interval within rows / strips / blocks (m): 1
Width within rows / strips / blocks (m): 1
In blocks
Vegetative material: T : trees / shrubs
Vegetative measure: Alinged along side wall of gully
Vegetative material: T : trees / shrubs
Number of plants per (ha): 6800
Spacing between rows / strips / blocks (m): 2-3.0
Vertical interval within rows / strips / blocks (m): 0.5-1.0
Width within rows / strips / blocks (m): 0.5
Vegetative measure: Aligned along side wall of gully
Vegetative material: T : trees / shrubs
Number of plants per (ha): 4800
Spacing between rows / strips / blocks (m): 2-3.0
Vertical interval within rows / strips / blocks (m): 0.5
Width within rows / strips / blocks (m): 0.5
Vegetative measure: Vegetative material: T : trees / shrubs
Trees/ shrubs species: Susbania sesban, Acacia decurrence, treelucern, Acacia saligna
Grass species: Elphant grass, Sudan grass
Slope (which determines the spacing indicated above): 20-30%%
If the original slope has changed as a result of the Technology, the slope today is (see figure below): 18-25%%
Gradient along the rows / strips: 0.5%
Diversion ditch/ drainage
Depth of ditches/pits/dams (m): 0.3-0.7
Width of ditches/pits/dams (m): 1.2-2.8
Length of ditches/pits/dams (m): 100-250
Waterway
Depth of ditches/pits/dams (m): 0.3
Width of ditches/pits/dams (m): 1.5-2.0
Structural measure: Check dams
Vertical interval between structures (m): 1
Spacing between structures (m): 10-15
Height of bunds/banks/others (m): 1-1.5
Width of bunds/banks/others (m): 1.5-3.5
Construction material (earth): Excavated soil
Construction material (stone): Loose stones for check dam
Construction material (wood): Brush wood for check dam
Slope (which determines the spacing indicated above): 10-18%
If the original slope has changed as a result of the Technology, the slope today is: 8-12%
Vegetation is used for stabilisation of structures.
4.3 ຂໍ້ມູນທົ່ວໄປກ່ຽວກັບການຄິດໄລ່ປັດໃຈຂາເຂົ້າໃນການຜະລິດ ແລະ ມູນຄ່າອື່ນໆ
ສະກຸນເງິນອື່ນໆ / ປະເທດອື່ນໆ (ລະບຸ):
ETB
ລະບຸ ອັດຕາແລກປ່ຽນ ຈາກໂດລາ ເປັນເງິນຕາທ້ອງຖີ່ນ (ຖ້າກ່ຽວຂ້ອງ): 1 ໂດລາ =:
20.0
ລະບຸ ຄ່າຈ້າງ ຄ່າແຮງງານສະເລ່ຍ ຕໍ່ ວັນ:
2.50
4.4 ການສ້າງຕັ້ງກິດຈະກໍາ
ກິດຈະກໍາ | ປະເພດ ມາດຕະການ | ໄລຍະເວລາ | |
---|---|---|---|
1. | Seedling preparation | ການບໍາລຸງລ້ຽງ | January-June |
2. | Seedling Transportation | ການບໍາລຸງລ້ຽງ | June-July |
3. | Grass split transportation | ການບໍາລຸງລ້ຽງ | June -July |
4. | Plantation of biological measures inside the gully | ການບໍາລຸງລ້ຽງ | July |
5. | Surveying | ໂຄງສ້າງ | Dry season |
6. | Reshaping of gully | ໂຄງສ້າງ | Dry season |
7. | Construction of cutoff drains | ໂຄງສ້າງ | Dry season |
8. | Construction of waterways | ໂຄງສ້າງ | Dry season |
9. | Construction of stone check dams | ໂຄງສ້າງ | Dry season |
4.5 ຕົ້ນທຶນ ແລະ ປັດໄຈຂາເຂົ້າທີ່ຈໍາເປັນໃນຈັດຕັ້ງປະຕິບັດ
ລະບຸ ປັດໃຈ ນໍາເຂົ້າ ໃນການຜະລີດ | ຫົວໜ່ວຍ | ປະລິມານ | ຕົ້ນທຶນ ຕໍ່ຫົວໜ່ວຍ | ຕົ້ນທຶນທັງໝົດ ຂອງປັດໃຈຂາເຂົ້າ ໃນການຜະລິດ | % ຂອງຕົ້ນທຶນທັງໝົດ ທີ່ຜູ້ນໍາໃຊ້ທີ່ດິນ ໃຊ້ຈ່າຍເອງ | |
---|---|---|---|---|---|---|
ແຮງງານ | labour | ha | 1.0 | 8319.0 | 8319.0 | 99.0 |
ອຸປະກອນ | animal traction | ha | 1.0 | 9.0 | 9.0 | 100.0 |
ອຸປະກອນ | tools | ha | 1.0 | 901.8 | 901.8 | 50.0 |
ວັດສະດຸໃນການປູກ | grass | ha | 1.0 | 20.0 | 20.0 | |
ວັດສະດຸໃນການປູກ | seeds | ha | 1.0 | 24.0 | 24.0 | |
ວັດສະດຸໃນການປູກ | seedlings | ha | 1.0 | 63.45 | 63.45 | |
ຝຸ່ນ ແລະ ຢາຊີວະພາບ | compost/manure | ha | 1.0 | 15.86 | 15.86 | |
ວັດສະດຸກໍ່ສ້າງ | stone | ha | 1.0 | 1405.0 | 1405.0 | 91.0 |
ວັດສະດຸກໍ່ສ້າງ | wood | ha | 1.0 | 27.6 | 27.6 | |
ວັດສະດຸກໍ່ສ້າງ | earth | ha | 1.0 | 91.2 | 91.2 | |
ຕົ້ນທຶນທັງໝົດ ໃນການຈັດຕັ້ງປະຕິບັດ ເຕັກໂນໂລຢີ | 10876.91 |
ຄວາມຄິດເຫັນ:
Duration of establishment phase: 15 month(s)
4.6 ບໍາລຸງຮັກສາ / ແຜນຈັດຕັ້ງປະຕິບັດ ກິດຈະກໍາ
ກິດຈະກໍາ | ປະເພດ ມາດຕະການ | ໄລຍະເວລາ / ຄວາມຖີ່ | |
---|---|---|---|
1. | Seedling preparation | ການບໍາລຸງລ້ຽງ | January-June |
2. | Seedling and grass split transportation | ການບໍາລຸງລ້ຽງ | July |
3. | Replanting seedlings and grass splits | ການບໍາລຸງລ້ຽງ | July |
4. | Maintenance of cutoff drains/waterways | ໂຄງສ້າງ | Dry season (Jan-Apr) |
5. | Maintenance of check dams | ໂຄງສ້າງ | Dry season (Jan-Apr) |
4.7 ຄ່າໃຊ້ຈ່າຍ ແລະ ປັດໄຈນໍາເຂົ້າທີ່ຈໍາເປັນສໍາລັບການບໍາລຸງຮັກສາກິດຈະກໍາ / ແຜນປະຕິບັດ (ຕໍ່ປີ)
ລະບຸ ປັດໃຈ ນໍາເຂົ້າ ໃນການຜະລີດ | ຫົວໜ່ວຍ | ປະລິມານ | ຕົ້ນທຶນ ຕໍ່ຫົວໜ່ວຍ | ຕົ້ນທຶນທັງໝົດ ຂອງປັດໃຈຂາເຂົ້າ ໃນການຜະລິດ | % ຂອງຕົ້ນທຶນທັງໝົດ ທີ່ຜູ້ນໍາໃຊ້ທີ່ດິນ ໃຊ້ຈ່າຍເອງ | |
---|---|---|---|---|---|---|
ແຮງງານ | labour | ha | 1.0 | 902.0 | 902.0 | 67.0 |
ອຸປະກອນ | animal traction | ha | 1.0 | 4.5 | 4.5 | |
ວັດສະດຸໃນການປູກ | grass | ha | 1.0 | 10.3 | 10.3 | |
ວັດສະດຸໃນການປູກ | seedlings | ha | 1.0 | 33.0 | 33.0 | |
ຝຸ່ນ ແລະ ຢາຊີວະພາບ | compost/manure | ha | 1.0 | 8.5 | 8.5 | |
ວັດສະດຸກໍ່ສ້າງ | stone | ha | 1.0 | 50.0 | 50.0 | 41.0 |
ວັດສະດຸກໍ່ສ້າງ | wood | ha | 1.0 | 14.4 | 14.4 | |
ວັດສະດຸກໍ່ສ້າງ | earth | ha | 1.0 | 45.6 | 45.6 | |
ຕົ້ນທຶນທັງໝົດ ທີ່ໃຊ້ໃນການບໍາລຸງຮັກສາ ເຕັກໂນໂລຢີ | 1068.3 |
ຄວາມຄິດເຫັນ:
The costs are calculated on hectare basis
4.8 ປັດໄຈ ທີ່ສໍາຄັນ ທີ່ສົ່ງຜົນກະທົບ ຕໍ່ຄ່າໃຊ້ຈ່າຍ
ໃຫ້ອະທິບາຍ ປັດໃຈ ທີ່ສົ່ງຜົນກະທົບ ຕໍ່ຕົ້ນທຶນ ໃນການຈັດຕັ້ງປະຕິບັດ:
The costs for gully erosion management is dependent upon labor, material and transport costs, workability of the soil and maintenance costs.
5. ສະພາບແວດລ້ອມທໍາມະຊາດ ແລະ ມະນຸດ
5.1 ອາກາດ
ປະລິມານນໍ້າຝົນປະຈໍາປີ
- < 250 ມີລິແມັດ
- 251-500 ມີລິແມັດ
- 501-750 ມີລິແມັດ
- 751-1,000 ມີລິແມັດ
- 1,001-1,500 ມີລິແມັດ
- 1,501-2,000 ມີລິແມັດ
- 2,001-3,000 ມີລິແມັດ
- 3,001-4,000 ມີລິແມັດ
- > 4,000 ມີລິແມັດ
ຂໍ້ມູນສະເພາະ / ຄວາມເຫັນກ່ຽວກັບ ປະລິມານນໍ້າຝົນ:
Monsoon, 5-6 months rain and 6-7 dry months
ເຂດສະພາບອາກາດກະສິກໍາ
- ເຄີ່ງຄວາມຊຸ່ມ
Thermal climate class: subtropics. The lowest temperature is above 5°C but below 18°C between November to January
5.2 ພູມິປະເທດ
ຄ່າສະເລ່ຍ ຄວາມຄ້ອຍຊັນ:
- ພື້ນທີ່ຮາບພຽງ (0-2%)
- ອ່ອນ (3-5 %)
- ປານກາງ (6-10 %)
- ມ້ວນ (11-15 %)
- ເນີນ(16-30%)
- ໍຊັນ (31-60%)
- ຊັນຫຼາຍ (>60%)
ຮູບແບບຂອງດິນ:
- ພູພຽງ / ທົ່ງພຽງ
- ສັນພູ
- ເປີ້ນພູ
- ເນີນພູ
- ຕີນພູ
- ຮ່ອມພູ
ເຂດລະດັບສູງ:
- 0-100 ແມັດ a.s.l.
- 101-500 ແມັດ a.s.l.
- 501-1,000 ແມັດ a.s.l.
- 1,001-1,500 ແມັດ a.s.l.
- 1,501-2,000 ແມັດ a.s.l.
- 2,001-2,500 ແມັດ a.s.l.
- 2,501-3,000 ແມັດ a.s.l.
- 3,001-4,000 ແມັດ a.s.l.
- > 4,000 ແມັດ a.s.l.
5.3 ດິນ
ຄວາມເລິກ ຂອງດິນສະເລ່ຍ:
- ຕື້ນຫຼາຍ (0-20 ຊັງຕີແມັດ)
- ຕື້ນ (21-50 ຊຕມ)
- ເລີກປານກາງ (51-80 ຊຕມ)
- ເລິກ (81-120 ຊມ)
- ເລິກຫຼາຍ (> 120 cm)
ເນື້ອດິນ (ໜ້າດິນ):
- ປານກາງ (ດິນໜຽວ, ດິນໂຄນ)
- ບາງລະອຽດ / ໜັກ (ໜຽວ)
ຊັ້ນອິນຊີວັດຖຸ ເທິງໜ້າດິນ:
- ປານກາງ (1-3 %)
- ຕໍາ່ (<1 %)
5.4 ມີນໍ້າ ແລະ ຄຸນນະພາບ
ລະດັບ ນໍ້າໃຕ້ດິນ:
5-50 ແມັດ
ການມີນໍ້າ ເທິງໜ້າດິນ:
ປານກາງ
ຄຸນນະພາບນໍ້າ (ບໍ່ມີການບໍາບັດ):
ບໍ່ມີນໍ້າດື່ມ (ຮຽກຮ້ອງໃຫ້ມີການບຳບັດນ້ຳ)
5.5 ຊີວະນາໆພັນ
ຄວາມຫຼາກຫຼາຍ ທາງສາຍພັນ:
- ຕໍ່າ
5.6 ຄຸນລັກສະນະ ຂອງຜູ້ນໍາໃຊ້ທີ່ດິນ ທີ່ໄດ້ນໍາໃຊ້ເຕັກໂນໂລຢີ
ລະບົບ ການຕະຫຼາດ ແລະ ຜົນຜະລິດ:
- ກຸ້ມຕົນເອງ (ພໍພຽງ)
ລາຍຮັບ ທີ່ບໍ່ໄດ້ມາຈາກ ການຜະລິດ ກະສິກໍາ:
- ໜ້ອຍກ່ວາ 10 % ຂອງລາຍຮັບທັງໝົດ
ລະດັບຄວາມຮັ່ງມີ:
- ສະເລ່ຍ
ບຸກຄົນ ຫຼື ກຸ່ມ:
- ກຸ່ມ / ຊຸມຊົນ
ລະດັບ ການຫັນເປັນກົນຈັກ:
- ການໃຊ້ແຮງງານຄົນ
- ສັດລາກແກ່
ເພດ:
- ຜູ້ຍິງ
- ຜູ້ຊາຍ
ໃຫ້ລະບຸ ຄຸນລັກສະນະ ຂອງຜູ້ນໍາໃຊ້ທີ່ດິນ:
Land users applying the Technology are mainly common / average land users
Difference in the involvement of women and men: Women are involved in collecting stones and assisting men on heavy works
Population density: 200-500 persons/km2
Annual population growth: 2% - 3%
80% of the land users are average wealthy.
20% of the land users are poor.
Some land users involve in seasonal labor in towns and sell charcoal
5.7 ພື້ນທີ່ສະເລ່ຍຂອງທີ່ດິນ ຫຼື ເຊົ່າໂດຍຜູ້ໃຊ້ທີ່ດິນການນໍາໃຊ້ ເຕັກໂນໂລຢີ
- <0.5 ເຮັກຕາ
- 0.5-1 ເຮັກຕາ
- 1-2 ເຮັກຕາ
- 2-5 ເຮັກຕາ
- 5-15 ເຮັກຕາ
- 15-50 ເຮັກຕາ
- 50-100 ເຮັກຕາ
- 100-500 ເຮັກຕາ
- 500-1,000 ເຮັກຕາ
- 1,000-10,000 ເຮັກຕາ
- > 10,000 ເຮັກຕາ
ຖືໄດ້ວ່າ ເປັນຂະໜາດນ້ອຍ, ກາງ ຫຼື ໃຫຍ່ (ອີງຕາມເງື່ອນໄຂ ສະພາບຄວາມເປັນຈິງ ຂອງທ້ອງຖີ່ນ)? :
- ຂະໜາດນ້ອຍ
5.8 ເຈົ້າຂອງທີ່ດິນ, ສິດໃຊ້ທີ່ດິນ, ແລະ ສິດທິການນໍາໃຊ້ນໍ້າ
ເຈົ້າຂອງດິນ:
- ລັດ
ສິດທິ ໃນການນໍາໃຊ້ນໍ້າ:
- ເປີດກວ້າງ (ບໍ່ມີການຈັດຕັ້ງ)
- ຊຸມຊົນ (ທີ່ມີການຈັດຕັ້ງ)
ຄວາມຄິດເຫັນ:
Land use rights on crop land is individual while on grazing lands it is communal either unorganized or organized in some cases. Water is open accessible in most cases except organized communal utilization for some developed drinking water sources.
5.9 ການເຂົ້າເຖິງການບໍລິການ ແລະ ພື້ນຖານໂຄງລ່າງ
ສຸຂະພາບ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
ການສຶກສາ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
ການຊ່ວຍເຫຼືອ ດ້ານວິຊາການ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
ການຈ້າງງານ (ຕົວຢ່າງ, ການເຮັດກິດຈະກໍາອື່ນ ທີ່ບໍ່ແມ່ນ ການຜະລິດກະສິກໍາ):
- ທຸກຍາກ
- ປານກາງ
- ດີ
ຕະຫຼາດ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
ພະລັງງານ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
ຖະໜົນຫົນທາງ ແລະ ການຂົນສົ່ງ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
ການດື່ມນໍ້າ ແລະ ສຸຂາພິບານ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
ການບໍລິການ ທາງດ້ານການເງິນ:
- ທຸກຍາກ
- ປານກາງ
- ດີ
6. ຜົນກະທົບ ແລະ ລາຍງານສະຫຼຸບ
6.1 ການສະແດງຜົນກະທົບ ພາຍໃນພື້ນທີ່ ທີ່ໄດ້ຈັດຕັ້ງປະຕິບັດ ເຕັກໂນໂລຢີ
ຜົນກະທົບທາງເສດຖະກິດສັງຄົມ
ການຜະລິດ
ການຜະລິດອາຫານສັດ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Gullies are treated for purpose of improved grass and legume fodder production like napier, susbania, local grasses
ຄວາມໜາແໜ້ນ ຂອງຜົນຜະລິດ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Honey, fruits can be diversified under intensive gully development
ລາຍໄດ້ ແລະ ຄ່າໃຊ້ຈ່າຍ
ຄວາມຫຼາກຫຼາຍ ຂອງແຫຼ່ງລາຍຮັບ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
High fodder biomass provide an opportunity to do fattening; sometimes used to grow fruits;
ມີວຽກໜັກ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Under low productive soil where recovery rate is slow, establishment and maintenance cost of labor is high
ຜົນກະທົບດ້ານວັດທະນາທໍາສັງຄົມ
ສະຖາບັນ ການຈັດຕັ້ງຊຸມຊົນ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Watershed committee and user groups are established
ຄວາມຮູ້ກ່ຽວກັບ ການຄຸ້ມຄອງ ທີ່ດິນແບບຍືນຍົງ / ການເຊື່ອມໂຊມຂອງດິນ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Awareness of the community on gully management increased
ການຫຼຸດຜ່ອນ ຂໍ້ຂັດແຍ່ງ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Gullies are stabilized and no more conflict
contribution to human well-being
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Land users are organized into user groups and harvest the biomass (grass and fodder) for livestock feed which result in increased livestock productivity. Some land users attempt to fatten cattle and gain benefit.
ຜົນກະທົບຕໍ່ລະບົບນິເວດ
ວົງຈອນນໍ້າ / ນໍ້າ
ການໄຫຼ ຂອງນໍ້າໜ້າດິນ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Significant reduction of damage due to runoff
ການລະບາຍນໍ້າ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Cutoff drains used to drain excess runoff upstream
ຊັ້ນນໍ້າໄຕ້ດິນ / ນໍ້າ
ດິນ
ການປົກຄຸມຂອງດິນ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Plantation of gullies increase cover and biomass production
ການສູນເສຍດິນ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Check dams significantly reduce the soil loss from gullies
ຊີວະນານາພັນ: ສັດ, ພືດ
ມວນຊີວະພາບ / ຢູ່ເທິງຊັ້ນດິນ C
6.2 ຜົນກະທົບທາງອ້ອມ ຈາກການນໍາໃຊ້ເຕັກໂນໂລຢີ
ການໄຫຼຂອງນໍ້າໃນລະດູແລ້ງ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Stream size and duration has improved
ການທັບຖົມ ຂອງດິນຕະກອນ ຢູ່ເຂດລຸ່ມນໍ້າ
ຄວາມເສຍຫາຍ ກ່ຽວກັບພື້ນຖານໂຄງລ່າງ ສາທາລະນະ / ເອກກະຊົນ
ຄວາມຄິດເຫັນ / ລະບຸແຈ້ງ:
Reduction of damage on houses
6.3 ການປ້ອງກັນ ແລະ ຄວາມບອບບາງ ຂອງເຕັກໂນໂລຢິ ໃນການປ່ຽນແປງສະພາບດິນຟ້າອາກາດ ແລະ ກ່ຽວຂ້ອງກັບອາກາດທີ່ມີການປ່ຽນແປງທີ່ຮຸນແຮງ / ໄພພິບັດທາງທໍາມະຊາດ (ຮັບຮູ້ໄດ້ໂດຍຜູ້ນໍາໃຊ້ທີ່ດິນ)
ອາກາດ ທີ່ກ່ຽວພັນກັບຄວາມຮຸນແຮງ (ໄພພິບັດທາງທໍາມະຊາດ)
ໄພພິບັດທາງອຸຕຸນິຍົມ
ການນໍາໃຊ້ ເຕັກໂນໂລຢີ ສາມາດ ຮັບມື ໄດ້ຄືແນວໃດ? | |
---|---|
ພະຍຸຝົນ | ບໍ່ດີ |
ໄພພິບັດທາງພູມອາກາດ
ການນໍາໃຊ້ ເຕັກໂນໂລຢີ ສາມາດ ຮັບມື ໄດ້ຄືແນວໃດ? | |
---|---|
ແຫ້ງແລ້ງ | ດີ |
ໄພພິບັດທາງອຸທົກກະສາກ
ການນໍາໃຊ້ ເຕັກໂນໂລຢີ ສາມາດ ຮັບມື ໄດ້ຄືແນວໃດ? | |
---|---|
ໂດຍທົ່ວໄປ (ແມ່ນໍ້າ) ນໍ້າຖ້ວມ | ບໍ່ດີ |
ຄວາມຄິດເຫັນ:
Gully erosion management involves combination of biological and physical measures. Strong structural measures and upstream runoff management practices should be applied to tolerate flooding.
6.4 ການວິເຄາະຕົ້ນທຶນ ແລະ ຜົນປະໂຫຍດ
ຈະເຮັດປະໂຫຍດເພື່ອປຽບທຽບກັບຄ່າໃຊ້ຈ່າຍກັບສິ່ງກໍ່ສ້າງ (ຈາກທັດສະນະຂອງຜູ້ນຳໃຊ້ທີ່ດິນ) ໄດ້ແນວໃດ?
ຜົນຕອບແທນ ໃນໄລຍະສັ້ນ:
ຜົນກະທົບທາງບວກເລັກນ້ອຍ
ຜົນຕອບແທນ ໃນໄລຍະຍາວ:
ຜົນກະທົບທາງບວກ
ຈະໄດ້ຮັບຜົນປະໂຫຍດເມື່ອປຽບທຽບກັບ / ຄ່າໃຊ້ຈ່າຍໃນການບຳລຸງຮັກສາທີເ່ກີດຂື້ນອິກ (ຈາກທັດສະນະຄະຕິຂອງຜູ້ນຳໃຊ້ທີ່ດິນ) ໄດ້ແນວໃດ?
ຜົນຕອບແທນ ໃນໄລຍະສັ້ນ:
ຜົນກະທົບທາງບວກ
ຜົນຕອບແທນ ໃນໄລຍະຍາວ:
ຜົນກະທົບທາງບວກຫຼາຍ
ຄວາມຄິດເຫັນ:
The short term economic benefits of management of gully erosion include grass and fodder production for livestock feed. While the long term benefits may include product diversification like fruit, fodder, and grass production.
6.5 ການປັບຕົວຮັບເອົາເຕັກໂນໂລຢີ
ຄວາມຄິດເຫັນ:
About 3-5% of the total area of watersheds are treated with gully management. Gullies formed on crop lands and communal grazing lands are management collectively by the community labor with external material support such as gabion and seedlings
Gully management is beyond the capacity of land users. So, they are often supported with seedlings and gabions for large gullies
There is a little trend towards spontaneous adoption of the Technology
Land users show interest and motivation by delineating gully damage areas and control free grazing. They also do fencing with external support for nails and seedlings.
6.7 ຈຸດແຂງ / ຂໍ້ດີ / ໂອກາດ ໃນການນໍາໃຊ້ ເຕັກໂນໂລຢີ
ຈຸດແຂງ / ຂໍ້ດີ / ໂອກາດໃນການນໍາໃຊ້ທີ່ດິນ |
---|
It increases fodder production |
It protects further expansion and damage of settlement areas and infrastructures |
It increases the flow of streams |
ຈຸດແຂງ / ຈຸດດີ / ໂອກາດ ຈາກທັດສະນະຂອງຜູ້ປ້ອນຂໍ້ມູນ ຫຼື ບຸກຄົນສຳຄັນ |
---|
Gully erosion management provides an immediate fodder for cut-and-carry grazing system and encourages zero grazing |
It controls erosion and sediment transport as well it increases stream flows to downstream and subsequently changed to productive area |
It reduces conflict among adjacent land holders due to formation of gullies |
It does not only reduce degradation but also stabilize the soil, water and vegetation system in the area |
It increases the awareness level of farmers about land degradation and its causes |
6.8 ຈຸດອ່ອນ / ຂໍ້ເສຍ / ຄວາມສ່ຽງ ໃນການນໍາໃຊ້ ເຕັກໂນໂລຢີ ແລະ ວິທີການແກ້ໄຂບັນຫາ
ຈຸດອ່ອນ / ຂໍ້ເສຍ / ຄວາມສ່ຽງໃນມຸມມອງຂອງຜູ້ນໍາໃຊ້ທີ່ດິນ | ມີວິທີການແກ້ໄຂຄືແນວໃດ? |
---|---|
It is labor intensive and sometimes harbor rodents and pests | Apply traditional collective action mechanisms |
ຈຸດອ່ອນ/ຂໍ້ບົກຜ່ອງ/ຄວາມສ່ຽງ ຈາກທັດສະນະຂອງຜູ້ປ້ອນຂໍ້ມູນ ຫຼື ບຸກຄົນສຳຄັນ | ມີວິທີການແກ້ໄຂຄືແນວໃດ? |
---|---|
It requires high labor for regular monitoring and maintenance of structures and protect from damage by excessive runoff | Establish by laws and procedures for collective actions among the user groups |
7. ເອກະສານອ້າງອີງ ແລະ ການເຊື່ອມຕໍ່
7.1 ວິທີການ / ແຫຼ່ງຂໍ້ມູນ
- ການໄປຢ້ຽມຢາມພາກສະໜາມ, ການສໍາຫຼວດພາກສະໜາມ
- ການສໍາພາດ ຜູ້ນໍາໃຊ້ທີ່ດິນ
7.2 ເອກກະສານອ້າງອີງທີ່ເປັນບົດລາຍງານ
ຫົວຂໍ້, ຜູ້ຂຽນ, ປີ, ISBN:
Gully Rehabilitation: What Does it Costs to Heal Gullies and Make Productive? WLRC Brief No. 3. June 2015
ມີຢູ່ໃສ?ມູນຄ່າເທົ່າໃດ?
www.wlrc-eth.org
ຂໍ້ມູນການເຊື່ອມຕໍ່ ແລະ ເນື້ອໃນ
ຂະຫຍາຍທັງໝົດ ຍຸບທັງໝົດການເຊື່ອມຕໍ່
Community Organizations and Mobilization for Soil and Water … [ອີທິໂອເປຍ]
Community mobilization for soil and water conservation work in a watershed planning unit is an approach for collective action by organizing all active labor forces living in the kebele/peasant association into development group of 20-30 members and further divide into 1:5 work force to implement construction of soil and water …
- ຜູ້ສັງລວມຂໍ້ມູນ: Gizaw Desta Gessesse
'Cut and Carry' Grazing system or 'Zero Grazing' … [ອີທິໂອເປຍ]
Cut and carry grazing system (alternatively called zero grazing) is an approach where the community is consulted to identify and agree on areas to be closed and protected from free grazing; establish user groups are established to share the fodder biomass harvested from communal closed areas equitably; they utilize tree/shrub …
- ຜູ້ສັງລວມຂໍ້ມູນ: Gizaw Desta Gessesse
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