Computing Spatio - Temporal Water Demand of Wheat Crop Using GIS and Remote Sensing - A Case Study of Faisalabad Irrigation District, Pakistan
Journal Title: Open Access Journal of Agricultural Research - Year 2018, Vol 3, Issue 6
Abstract
Water resources are considered to be finite and their management and judicious use is emerging as a big challenge in the 21st century due to high population growth rate and associated food security. For effective water management of water resources, the assessment of evapotranspiration is necessary. GIS and RS is a best tool to estimate crop evapotranspiration of agricultural crops. The aims and objectives of this study are to compute the real time spatially distributed crop coefficient (Kc) and water demand of wheat crop grown in Faisalabad Irrigation District, Pakistan. In this study monthly crop evapotranspiration for command area was computed using MODIS 13Q1 satellite imagery. The crop evapotranspiration (ETc) was computed by pixel wise multiplication of crop coefficient (Kc) maps and the reference evapotranspiration (ETo) in ERDAS Imagine Model Maker (EIMM). Kc maps were generated from MODIS 13Q1 satellite imagery while reference evapotranspiration (ET0) was estimation using CROPWAT model which compute ETO based FAO-24 modified Blaney-Criddle method using multi variables i.e., temperature, wind speed, sunshine, sun radiations and relative humidity. It was observed that ETc value varied from 0.30-0.89, 0.52-1.47, 0.68-1.64, and 0.61-2.49 mm/day for Dec, Jan, Feb and Mar respectively. Seasonal minimum and maximum value of ETc for wheat crop was 0.30 and 2.49 mm/day for whole command area. It was found that average ETc value for wheat was increased gradually from Dec to Feb as 0.59 to 1.16 mm/days and then decreased to 1.05 mm/days in March. Seasonal crop water requirement of wheat was varied from 265 mm to 665 mm with an average of 465 mm. Results of this study were very close to past studies therefore, it can be concluded that remote sensing based computation of Kc is capable of estimating crop water requirement of the command area satisfactorily for the wheat crop.
Authors and Affiliations
Arshad A1*, Bakhsh A1, Azzam A1, Ali S1 and Awais M2
Keywords
Related Articles
- EP ID EP755127
- DOI oajar-16000178
- Views 30
- Downloads 0
The Function of Molybdenum and Boron on the Plants
Plants favour to micronutrients to maintain physiological balance in plants to maintain growth and development of the plants. Molybdenum (Mo) and Boron (B) are essential micronutrients of the plants have a crucial role...
Performance of Bread Wheat (Triticum Aestivum L.) Line Originating from Various Sources
The performance of 78 bread wheat (Triticum aestivum L.) lines, 26 from the crossing block of the National Wheat Research Block and 52 lines introduced from CIMMYT and ICARDA, were evaluated at Kulumsa (WRCoE), Adet, an...
Cultural Control of Cacao Witches’ Broom Disease (Moniliophthora perniciosa) in Colombia: Results of Two Cases
Witches’ Broom (Moniliophthora perniciosa) is one the most harmful diseases of the cacao crops in South and Central America. It affects the vegetative growing of the trees as well as organs like pods and flower cushions...
Drouth in Furg
In this paper some agricultural problems of Furg village is reviewed. Also some parts of political matters from VOA Persian, BBC Persian and sayings from Eminent Crown Prince of Iran Reza Pahlavi were given.
Assessment of the Constraints to Effective Delivery of Agricultural Extension Services in Lagos State, Nigeria
This study assessed the constraints to effective delivery of agricultural extension services in Lagos State, Nigeria. A sample size of forty (40) respondents was interviewed. Data for this study were collected through in...