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Land Resources Research Institute

SOIL ENVIRONMENT

Soil Environment is, relatively a new, Research Program established with the objectives to evaluate soil pollution – type, quantum and extent due to indiscriminate use of Agro-chemicals and municipal/industrial wastes for crop production and their mitigation and to develop suitable remedial technologies for safe use of polluted soils and municipal/industrial waste discharge.
 

 

 

 

 

 

 

 

OBJECTIVES

  • Rationalize use of urban and rural wastes.

  • Assess and improve soil quality for agricultural sustainability.

  • Minimize pollution in agro-ecosystems.

RESEARCH ACTIVITIES

  • Temporal monitoring of soil and produce quality of arable land being irrigated with untreated municipal/industrial effluents

  • Bio-remediation of heavy metals contaminated soils

  • Estimate sink capacity of soils for heavy metal pollutants

  • Evaluation of metal tolerance and bio-sorption potential of indigenous microbial isolates.

  • Metal transport behavior and redistribution in soil profile.

  • Development protocols for the treatment of municipal effluents for safe use of supplement irrigation.

RECENT SALIENT ACHIEVEMENTS

Metal Contamination of Vegetables Grown on Soils Irrigated with Untreated Municipal/industrial Wastewater

Metals in soils and vegetables irrigated with untreated metal contaminated municipal/industrial wastewater from Gujranwala, Sialkot, Hyderabad and Mirpurkhas were assessed. Cadmium, lead and nickel concentrations in almost all the soil samples were above the FAO/WHO recommended permissible limits while cadmium, chromium and lead concentrations were above the recommended permissible limits in all the examined vegetables.

 

Heavy Metals Phytoextraction Potential of Native Plant Species

Natural and chemically enhanced (using chelating agent, i.e., EDTA) phyto-extraction potential of native plant species, i.e., spinach, mustard, maize, sorghum and oat was assessed by growing on metal contaminated soils.

 

Apparent Metal Balance Sheet of Peri-urban Areas under Wastewater Irrigation

Apparent balance sheets for Pb, Cd, Cr, and Cu were prepared by growing maize fodder and spinach crops in Gujranwala peri-urban soils under municipal/industrial wastewater irrigation and net positive balance revealed that the addition of metals through municipal/industrial wastewater was more than the removal of metals by growing crops. 
 

 

Metal tolerance and sorption of Filamentous Fungi Isolated from Soils Irrigated with Untreated Municipal Effluent

Nineteen filamentous fungi were isolated from soils being irrigated long-term with metal-contaminated wastewater. These fungi were evaluated for their copper, cadmium, and nickel tolerance and sorption capacity and some of the isolated were found highly tolerant and sorbent.
 

 

 

Isolation and Metal Tolerance of Bacterial strains Isolated from Soils Irrigated with Untreated Municipal Effluent

A total of 60 bacterial strains were isolated from soils being irrigated long-term with metal-contaminated wastewater and tested for copper, cadmium, and chromium tolerance. Sixteen strains were found Cu, 20 Cd and 24 Cr tolerant.

 

Metals Sorption Behavior of Dominant Calcareous Soils under Untreated Municipal/Industrial Wastewater

Metals sorption parameter, i.e., buffer capacity, adsorption intensity and affinity of dominant soils in peri-urban areas of Gujranwala and Sialkot were determined using Langmuir. Lead sorption was in order of Gujranwala (703mg kg-1 soil) >Miranpur (666 mg kg-1 soil) >Nabipur (625 mg kg-1 soil) >Shahdara (567mg kg-1 soil). Similarly, cadmium and copper sorption was also higher in Gujranwala (3266 and 914 mg kg-1 soil) followed by Miranpur (3004 and 804 mg kg-1 soil), Nabipur (2534 and 765 mg kg-1 soil and Shahdara (1724 and 690 mg kg-1 soil). The order of adsorption intensity of all the metals was Gujranwala>Miranpur>Nabipur>Shahdara.

PUBLICATIONS

 

SCIENTIFIC STAFF

S. No

Name and Designation

Contacts

1

Dr. Muhammad Mahmood-ul-Hassan, Principal Scientific Officer

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.    Tel: +92 51 90733128

2

Dr. Rizwan Ahmad, Scientific Officer

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Tel: +92 51 90733127

3

Mr. Muhammad Yasin, Scientific Officer

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.   Tel: +92 51 90733127

4

Mr. VishandasSothur, Research Assistant/ PhD Scholar

E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. Tel: +92 51 90733137

 

Resource Person

Dr. M. Mahmood-ul-Hassan

 PSO

E-mail

  This email address is being protected from spambots. You need JavaScript enabled to view it. , 051-90733128

 

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