Malir River which is the major seasonal river of Karachi once supported the market gardening practiced in Karachi. Its valleys and plains, once comprises the cultivated lands of vegetables and fruits that fulfilled the local market demand. But with a shift in rainfall characteristics, the cultivation also started to recede slowly as many of the crops could not withstand the prolonged drought conditions and farmers were not ready to take the risks and hence abandoned cultivation. Hence, changing climate gives way to the industrialization of rapidly growing urban center which in turn inducing desertification. Since the cultivated land which is supplied with water also is helpful in evapo-transpiration leading to precipitation by taking part in the water cycle. But the whole process was disrupted by the abolition of agricultural activity in the area. The study gives a GIS (Geographical Information Sciences) perspective of Land Use/Land Cover of the southern part of Malir plain near its mouth – the Korangi and Landhi Area which were also the active flood plains of Malir during 1960s. Since the huge urbanization and population growth has led to water scarcity in the area due to the reduction of underground aquifers and the reduction of agriculture, high research efficiency can be achieved using satellite imagery and GIS.

Karachi is the major financial hub of Pakistan. The urban sprawl generates many sub financial hubs as well e.g. Saddar which is consider as CBD of metropolitan, specifically area along I.I. Chundrigar road is almost have offices and business set-up. The similar pattern has been emerged in many other places e.g. Shahrah-e-Faisal and Tariq road. Along all three major roads mixed-used development particularly commercialization has taken place prominently and these sectors emerged as main business Centre. The present study was aimed to assess the Land-Use/Land Cover (LU/LC), green cover and air quality index analysis through object based analysis on very high-resolution satellite imagery at Shahrah-e-Faisal. The obtained results showed that the combine three activities such as Shopping, Business and Trade (SBT), Social, Institutional and Infrastructure related activities (SII), and travel or movement (ToM) were occupied on 51.34% of land. The residential activities also make an attractive volume of proportion was up to 47.11%. Therefore, it can be the perfect example of smart growth if introduction greenways initiate more effectively along with some attraction spots for Leisure.

Solid waste management is a worldwide concern, particularly in the developing countries. The solid waste disposal and landfill site management is a serious issue. City planners and municipal corporations have to confront with the problem of Municipal Solid Waste Management all over the world, especially in the developing countries. Population growth is responsible for an increase in residential, commercial and infrastructure development, which poses adverse effects on the environment. One of the most serious and challenging environmental challenge being faced by the municipal corporations of developing countries is urban solid waste management. Dumping of municipal waste in unsuitable areas poses serious challenges to the local habitants of the neighborhood. Municipal solid waste, if not properly managed, is one of the major environmental issues that could further lead to different diseases' transmission, aesthetic and odor nuisance, and atmospheric and water pollution, etc. This paper aims to deal with the selection of suitable site for disposing off municipal solid waste management being produced at the Jacobabad City using Geographic Information Systems and Remote Sensing techniques. In the Jacobabad City, the existing open dumping systems are not environmentally sound posing serious environmental threats. Loads of generated waste (about 64 tons/day as per 2012 estimates) has been dumped into the inappropriate sites. Keeping in view the complicated process of landfill site, this study considers all the environmental, social and technical factors (distances from residences, proximity to road networks, schools, health facilities and reservoirs) to determine the best site for Municipal Solid Waste disposal in Jacobabad City. Different analysis like buffer analysis, Euclidean distance and overlay analysis were also performed in this study to come up with the most suitable landfill site.

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