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WATER SCARCITY AND DEGRADED ECOSYSTEMS: INNOVATIVE OPTIONS FOR MANAGING SCARCE WATER RESOURCES TO REHABILITATE DEGRADED RANGELANDS IN SEMI-ARID ECOLOGICAL ZONE OF PAKISTAN

IWRA World Water Congress 2011 Pernambuco Brazil
1. Adaptive water management
Author(s): Sahibzada Irfanullah Khan

Sahibzada Irfanullah Khan, Sustainable Land Management Project, Planning & Development, sahibzada.irfanullah@slmp.org.pk



Keyword(s): Degraded rangelands,water harvesting,water harvesting,silvo-pastoral system,water conservation,vegetation growth,semi-arid
Article: PDF

Abstract

This paper depicts results of rehabilitation work initiated in 2003 under the SDC funded Farm Forestry Support Project in District Karak using rainwater harvesting and management techniques to strengthen silvo-pastoral system with hillside ditches and sand dune stabilization. The area lies in southern semi-arid region of Pakistan covering 75% of the land area with aridity index 0.05-0.65. Resided by poor pastoral communities, it is characterized by degraded rangeland ecosystem due to over-use and drought conditions. The results recorded in 2008 showed profuse plant growth with a potential to provide timber, fuel wood and fodder for livestock. Maximum harvesting of rainwater and conservation of moisture resulted in enormous growth of natural grasses and shrubs. After 5 years, plant growth in height and diameter of 6 m and 20 cm respectively was recorded. Average vegetation soil cover of 45% and increase in soil organic mater and nitrogen content was also recorded.

Key words: Degraded rangelands, Semi-arid, Water Harvesting

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