| Author | Dost, Rahmatullah |
| Call Number | AIT RSPR no.WM-13-02 |
| Subject(s) | Irrigation water--Afghanistan--Central Arghandab Valley
|
| Note | Requirments for the degree of Master of Engineering in Water Engineering and Management, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studiesproject report ; no. WM-13-02 |
| Abstract | The study has investigated surface water availability and irrigation water supply in Central
Arghandab area, Kandahar, Afghanistan, In order, the water productivity (kg/m3
) and
response yield (ton/ha) of winter wheat were evaluated according different scenarios. In this
study the model procedure determined the water shortage periods during the years 1953-1978
with irrigable areas 211.72 km2
and 420.16 km2
, in order, to obtain the water needs on
monthly basis in the periods of water shortage and after that the study evaluated the water
availability with irrigation water supply for both irrigable areas in the drier and wettest
periods. The historical hydrologic data such as discharge above the reservoir (DAR),
discharge below the reservoir (DBR) and reservoir water content was used for the analysis,
and also the climatic data was used for running the Cropwat model to estimate the irrigation
water requirement (IWR) to determine the irrigation water supply (IWS). After that Aquacrop
modes was used for determining the water productivity as (kg/m3
) and response yield (ton/ha)
for the crop type of winter wheat according different scenarios.
The result showed that water shortages were occurred in five years as 1954, 1956, 1971, 1972
and 1978 when the irrigated area was 211.72 km2
, and the period of May/1971 up to
November/1971 was the serious drought. In addition, when the irrigable area was 420.16 km2
the analysis determined that the water shortages were occurred in every year except the 1957
which was the wettest year, and also the serious drought was exceeded to 16 months as from
August/1970 up to November/1971.
The high water supply than IWS for irrigated area 211.72 km2
showed that much water was
supplied related to IWS in every year without the 1971 drier year, but with the irrigable area
420.16 km2
the supply was not seen in the years as 1955, 1962, 1963, 1966, 1971 and 1978,
in addition, the year of 1957 was the wettest that supplied much water than IWS from the
month of November up to August for the irrigable area 211.72 km2
and from the month of
January to July for the irrigated area 420.16 km2
.
After that, the evaluated water productivity (km/m3
) and response yield (ton/ha) of winter
wheat were equal according scenarios (A1B, A2, B1, and B2) but defer with scenarios
(Average based on marine boundary layer air data) and (IPCC. BERN. A1B. CO2, IPCC
projections for A 1B scenario with BERN model). |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studiesproject report ; no. WM-13-02 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Perret, Sylvain Roger; |
| Examination Committee(s) | Babel, Mukand S.;Shrestha, Sangam; |
| Scholarship Donor(s) | (Loy Kandahar Reconstruction Organization (LKRO), Afghanistan) AIT Fellowship; |
| Degree | Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 2013 |