干旱区生态环境知识资源中心(Arid): DEVELOPMENT OF WATER MANAGEMENT STRATEGIES IN ARID REGION OF PUNJAB PAKISTAN

Arid

	DEVELOPMENT OF WATER MANAGEMENT STRATEGIES IN ARID REGION OF PUNJAB PAKISTAN
	Mujtaba, Ahmad; Nabi, Ghulam; Masood, Muhammad; Sultan, Muhammad; Saleem, Ather; Saleem, Amjad; Ali, Ahsan; Ghaffar, Mubashir Ali
通讯作者	Mujtaba, A
来源期刊	FRESENIUS ENVIRONMENTAL BULLETIN
ISSN	1018-4619
EISSN	1610-2304
出版年	2022
卷号	31 期号:1
英文摘要	Development of different strategies for sustainable water management is very important in arid region of Punjab Pakistan having 280km2 area. In this research, water budget is estimated using the hydrologic water balance equation in Bahawalpur district in Punjab. Initially, landcover of the study area is determined using the Geographic Information System (GIS) and remote sensing. Due to excess rainfall and mostly grown crop in the study area, 4 scenarios were made, (1) 70% of sugarcane area is changed into wheat (2) 70% of sugarcane area is changed into wheat and cotton (3) 50% of sugarcane is changed into orchard (citrus) and 30% of sugarcane is changed into wheat (4) Construction of artificial ponds for storage of excess rainfall. Observed evapotranspiration is estimated using the Cropwat model, which is changed into the potential evapotranspiration for all the scenarios. Average annual rainfall in 2015 was 511.3mm in 51 events, with evapotranspiration of 4.29mmiday resulting in 366.34mm excess water. For estimation of precipitation recharge. runoff is estimated using the Hydrological Engineering Center Hydrological Modelling System (HEC HMS). The model was calibrated and validated for year 1996 and 1997 respectively, and runoff was estimated from 1998 to 2015. Streamflow (3L and 4L distributaries) recharge is estimated by using the average hydraulic conductivity value and interpolated on total length of distributaries. Groundwater recharge is estimated by adding precipitation recharge and stream flow recharge. Data of total number of pumping wells is taken from Agricultural Department, Punjab. Total groundwater pumpage is estimated for pumping rate of each well. Water budget for all 3 scenarios is estimated by subtracting groundwater recharge to groundwater pumpage. Actual groundwater levels were measured in the study area. Water budget is compared with the actual groundwater levels which show that our calculations are correct. Result shows that 102,575,200m3 of water can be saved annually for an area of 280km2. This study also concluded that annual average water deficit is -2.138m, -2.117m, -2.128m and -2.064m for actual condition, scenario 1, scenario 2 and scenario 3 respectively. For rainwater storage, about 7,000 artificial ponds can be constructed having capacity of 15,000m3. This water will not only cover the irrigation requirement but also decrease the threat to groundwater depletion. If these ponds are not constructed, then scenario 3 has the lowest water extraction rate and should be adopted in this region for proper water management.
英文关键词	Water Budget groundwater depletion Cropwat HEC-HMS Bahawalpur
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000736347700053
WOS关键词	GROUNDWATER ; COMMAND
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376768
推荐引用方式 GB/T 7714	Mujtaba, Ahmad,Nabi, Ghulam,Masood, Muhammad,et al. DEVELOPMENT OF WATER MANAGEMENT STRATEGIES IN ARID REGION OF PUNJAB PAKISTAN[J],2022,31(1).
APA	Mujtaba, Ahmad.,Nabi, Ghulam.,Masood, Muhammad.,Sultan, Muhammad.,Saleem, Ather.,...&Ghaffar, Mubashir Ali.(2022).DEVELOPMENT OF WATER MANAGEMENT STRATEGIES IN ARID REGION OF PUNJAB PAKISTAN.FRESENIUS ENVIRONMENTAL BULLETIN,31(1).
MLA	Mujtaba, Ahmad,et al."DEVELOPMENT OF WATER MANAGEMENT STRATEGIES IN ARID REGION OF PUNJAB PAKISTAN".FRESENIUS ENVIRONMENTAL BULLETIN 31.1(2022).