Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Agro-ecological Aspects of Groundwater Utilization in Trishal Thana, Mymensingh

S. M. Shirazi
Project consultant
Farming Systems and Environmental Studies, BAU, Mymensingh..

M. S. U. Talukder
Professor
Department of Irrigation and Water Management, BAU, Mymensingh.

Abstract/ Executive Summary:

Groundwater is an important source of water for irrigation and public supplies in Bangladesh. It is the major source of water available in Trishal thana during dry season. The experimental soils were heterogeneous ranging from clay to silty clay loam. The results indicated that on an average soil pH, % N, % organic carbon and sulphur were low and phosphorus was high in all land types-high. medium and low land. The lowest water level dropped below 8 m for 2 to 3 months in almost every year for all the locations studied. The depth of water in peak period of dry season in Sutia river and in large, medium and small ponds were 0.95, 1.33, 0.45 and 0.00 m respectively because of the lowering of the groundwater table. This situation eliminated the possibility of use of shallow tube wells (STWs) or other surface mounted suction mode pumps in Trishai thana. Due to heavy abstraction of groundwater many environmental consequences have been encountered. Sowing time, pisciculture and growth of aquatic plants were seriously hampered. Likewise, oxygen deficiency in ponds, scarcity of water for domestic animal and soil cracking in critical period occurred. Due to low humidity and relatively high temperature prevailing in the study area the shallow rooted plants and vegetation which are not irrigated were drastically affected as evidenced from field survey results. This might cause ecological imbalance in Trishal Thana.

Keywords: Agro-ecology, Groundwater, Environment, Aquifer

Location: Trishal thana, Mymensingh district

Start Date: 00-00-1985

End Date: 00-00-1993

Program Area: Crop-Soil-Water Management

Commodity: Groundwater

Objectives:

To evaluate the effect of groundwater utilization on soil, available surface water sources, water level fluctuation and on the growth of plants and vegetation.

Methodology:

The study was conducted at Trishal thana of Mymensingh district. The location of the deep tube wells (DlWs) is shown. The monthly data of static groundwater levels monitored by the Bangladesh Agricultural Development Corporation (BADC) in 10 specific deep tube wells from 1985 to 1993 were collected from BADC office of Trishal thana. The climatic parameters such as rainfall, evaporation, temperature, humidity, wind speed and solar radiation controlling the local ecology over the study area were collected from the Weather Yard of BAU, Mymensingh. Soil samples were collected at 20, 40 and 60 cm depths from twelve unions of Trishal thana to determine its moisture status. These samples were analyzed at the Humboldt Soil Testing Laboratory of the Department of Soil Science, BAU, Mymensingh in order to determine the physico- chemical properties of the soil. The information about plant growth. vegetation and surface water conditions were collected from 100 randomly selected farmers covering the entire thana using a pre designed questionnaire through on-spot visit and interviewing.

Source of Information: Journal of the Institution of Engineers, Bangladesh; Agricultural Engineering Division, Vol. 24/ AE, No.1, Dec. 1996

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The lowest groundwater level dropped below 8 m for two to three months from March to May in almost every year for the overall study area. The experimental soils were heterogeneous ranging from clay to silty clay loam. The average soil pH, % N, % organic carbon and sulphur were low and phosphorus was high in high, medium and low land types. Sowing time of crops, pisciculture and growth of plants and vegetation were hampered due to heavy abstraction of groundwater. Conjunctive use of both surface and groundwater resources should be carried out in the study area in order to minimize many of the undesired consequences of groundwater abstraction.

Knowledge Management: Journal