water resources are of vital human resources and of the three main elements of ecosystem. almost half of the agricultural products of the world are being produced in irrigation schemes. in today's world, the population is considerably increasing and consequently severe shortage of food threatens about two-third of the world's population. moreover, water resources are facing more serious crisis ...

A water simulation model (WaSim) to simulate the growth and development of Amaranthus cruentus as well as the components of water balance for a typical sandy-clay-loam soil of Akure has been described. Dry season experiments were carried between January and March of 2005 and 2006. Amaranthus seeds were established on the field and three irrigation water managements were imposed on the crop to d...

water user cooperatives were formed due to consideration to people's empowerment and participation in water investment and management. the purpose of this study was to investigate the mechanisms of development and strengthening of water user cooperatives in the aras river basin. the study population consisted of the management board members of the water user cooperatives in the aras basin in th...

Groups of mature (5+ year old) Arctic charr Salvelinus alpinus held in sea water were exposed for 34 days to either a high (mean +/-s.e. 0.15 +/- 0.01 sea lice Lepeophtheirus salmonis g(-1) fish mass) (HI), medium (0.07 +/- 0.00 sea lice g(-1) fish mass) (MI) or no [control (C)] sea-lice infection during early stages of gonad development (June to July). Infection with sea lice resulted in incre...

The Songhua River is the largest river in northeastern China; the river’s water quality is one of the most important factors that influence regional ecological health and food safety in northeastern China and even the downstream of the Heilong River in Russia. In recent years, the Chinese government implemented several water resource protection policies to improve the river’s water quality. In ...

The parameters such as temperature, PH, TSS, TDS, ammonia, phenol, cyanide, sulfide, oil and grease, chloride, DO, COD and BOD were taken to assess the water quality of Sirsiya river, central southern Nepal. Water samples were collected from upstream to downstream from the point receiving industrial effluent to Sirsiya river. It receives wastewater burden of more than 250 industries along Bara/...

Pakistan is blessed with abundant water resources but facing a critical shortage due to lack of storage facilities, poor governance, and the adverse impacts climate change. The burgeoning population at present 225 million, which expected cross 250 million by 2025 creating an additional burden on resources, as per capita availability depleting sharply from 5,000 m3 in 1951 1,100 2005, fall 800 2...