International network for natural sciences – research journal
  • mendeley icon
  • linkedin icon
  • google plus icon
  • twitter icon
  • google scholar icon
  • facebook icon

An assessment of nutrient, sediment and carbon fluxes to the Indus Delta

By: Asif Inam, Mohsin Muzaffar, Khalid Mehmood Awan, Syed Imran Hasany, Ibrahim Zia, Mahmood Hashmi

Key Words: Nutrients, Carbon flux, Estuary, Khobar creek, Carbonate sediments, Suspended solids

J. Bio. Env. Sci. 10(6), 27-37, June 2017.

Abstract

Nutrient and carbon flux play a significant role in the deltaic nourishment. These fluxes significantly involved in the stability of deltaic coast. Recent studies reflect that Indus River discharge is subtracted due to Khobar Creek, which is presently the only creek that carries the fresh water of Indus River into the Arabian Sea. There has been a drastic reduction in the load of nutrients brought by Indus River for the last fifty years. This reduction in Indus discharge has a negative impact on the Indus estuary and the productivity of the mangrove forest and fisheries. The Indus River bed sediments have relatively low values of calcium carbonate (< 10%) because sand contains relatively high concentrations of mica (36%), quartz (37%) and feldspar (11%) with very little percentage of detrital carbonate sediments. The organic carbon and calcium carbonate content in the sediment samples obtained from the area averages <1% and <15% respectively. Low values of the Corg (< 1%) were obtained for the bed samples of the Indus River. The bed sediments are generally composed of fine sand size material. Therefore, they have comparatively less Corg. The Indus River water and sediment discharge to the deltaic area and eventually to Arabian Sea is limited to few days during the months of July and August.

| Views 60 |

An assessment of nutrient, sediment and carbon fluxes to the Indus Delta

Meynell PJ, Qureshi MT. 1993. Sustainable management of the mangrove ecosystem in the Indus Delta. In: Davis, T. J. (Ed.) Towards the Wise Use of Wetlands. Wise Use Project, Ramsar Convention Bureau, Gland, Switzerland.

www.panda.org/about_our_earth/ecoregions/indus_river_delta.cfm

Iftikhar U.  2002. Valuing the economic costs of environmental degradation due to sea intrusion in the Indus Delta’, in IUCN, Sea Intrusion in the Coastal and Riverine Tracts of the Indus Delta – A Case Study. IUCN – The World Conservation Union Pakistan Country Office, Karachi

Inam A, Clift PD, Giosan L, Tebrez AR, Tahir M, Rabbani MM, and Danish M. 2007. The Geographic, Geological and Oceanographic Setting of the Indus River. Book Geomorphology and Management, Chapter 16, 333-346.

IRIN. 2001. Pakistan: Intruding sea water threatens Indus River, UN Office for the co-ordination of humanitarian affairs integrated regional information networks article, December 31.

Kalhoro NA, He Z, Xu D, Faiz M, Yafei LV, Sohoo N, and Bhutto AH. 2016. Vulnerability of the Indus River Delta of the North Arabian Sea, Pakistan, Global NEST Journal, 18(3), 599-610.

Memon  AA. 2005. Devastation of the Indus River Delta. World water & Environmental Congress 2005, American Society of Civil Engineers, Environmental and water Resources Institute, Anchorage, Alaska,

May 14-15, 2005.

Asif Inam, Mohsin Muzaffar, Khalid Mehmood Awan, Syed Imran Hasany, Ibrahim Zia, Mahmood Hashmi.
An assessment of nutrient, sediment and carbon fluxes to the Indus Delta.
J. Bio. Env. Sci. 10(6), 27-37, June 2017.
http://www.innspub.net/jbes/assessment-nutrient-sediment-carbon-fluxes-indus-delta/
Copyright © 2017
By Authors and International Network for
Natural Sciences (INNSPUB)
http://innspub.net
brand
innspub logo
english language editing
  • CALL FOR PAPERS
    CALL FOR PAPERS
    Publish Your Article
  • CALL FOR PAPERS
    CALL FOR PAPERS
    Submit Your Article
INNSPUB on FB
Email Update