| Author | Malla, Indra Bahadur |
| Call Number | AIT Thesis no.RD-00-6 |
| Subject(s) | Landslides--Nepal--Rasuwa
|
| Note | A thesis submitted in pattial fulfillment of the requirements for the degree of Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | Landslides occurrence is a common phenomenon in the mountains of Nepal. Land use pattern,
slope gradient and rainfall intensity govern the distribution and occurrence of landslides.
Landslides in the study area affected about 7 percent of the total land area. Distribution of
landslide in agricultural land was relatively higher than other grazing, shrub and forest lands.
The occurrence of landslides was found high (90 percent) in 30-60 percent slope areas
followed by 9.5 percent in above 60 percent slope and less than one percent below 15-30
percent slope.
Large-scale landslides occurrence was associated with natural forces such as weak geological
structures (faults and fractures) and steep slope gradient and high intensity of rainfall within
short time. Besides human activities assist to accelerate the occurrence of landslides mainly in
agricultural land.
Local people are practicing indigenous technologies for prevention and rehabilitation of
landslides including terrace improvement and maintenance. Government line-agencies
(District soil conservation Office and Road department) assist to structural measures like
gabion check dams, retaining walls and bioengineering works to protect and rehabilitate the
landslide occurrence.
Emphasis should be given on preventive measures, which could reduce the extent of landslide
and soil erosion and cost of rehabilitation. In addition, attention must be given to channel the
rainwater into safe disposal points being collected in roads, foot trails and agricultural lands.
Land use regulation is an appropriate measure to minimize landslides. Most of the landslide
incidents were observed in marginal lands, therefore, they should be used for tree and shrub
cultivation, which could help to reduce soil erosion and landslides.
Training to relevant technicians engaged in soil conservation and watershed management
works could helps to upgrade the knowledge of the technicians and local farmers. They
should be educated on cause and consequences of landslides and appropriate countermeasures
to be undertaken. In addition, conservation demonstration on farmers' land could help to
disseminate and propagate the management technologies among farmers. |
| Year | 2000 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Development and Sustainability (DDS) |
| Academic Program/FoS | Rural Development, Gender and Resources (RD) |
| Chairperson(s) | Apisit Eiumnoh ;Thapa, Gopal B.; |
| Examination Committee(s) | Shrestha, Rajendra P.; |
| Scholarship Donor(s) | Danish International Development Assistance (DANIDA); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2000 |