نتایج جستجو برای: economic water productivity

تعداد نتایج: 917923  

Journal: :Sustainability 2022

Water demand management through price and market mechanisms is crucial for agricultural water management. However, how to set an appropriate remains unclear due the uncertainty regarding response of changes complexity hydro-economic system. Thus, this study developed a water-economic model examine both issues in Heihe River Basin. The empirical results revealed that basin’s currently price-inel...

2004
EDWARD B. BARBIER

Several hydrological studies forecast a global problem of water scarcity. This raises the question as to whether increasing water scarcity may impose constraints on the growth of countries. The influence of water utilisation on economic growth is depicted through a growth model that includes this congestible nonexcludable good as a productive input for private producers. Growth is negatively af...

In Nigeria irrigated agriculture is an important tool for economic growth, food security, and poverty reduction during dry periods of rain-fed agriculture. The concentration and composition of dissolved constituents in water determines its quality for irrigation use. Water quality studies strongly suggest that agriculture is a leading source of water quality problems, due to pesticides and othe...

امینی, علیرضا,

This paper tries to measure and analyze the trend of indicators of labor and capital productivity as well as Total Factor Productivity (TFP) in the economic sectors introduced in the 4th five-year-development plan for the period within 1971-2003. According to the results, the productivity indicator throughout Iran has increased 0/9% on average annually and the highest growth has been in the tel...

Journal: :اقتصاد و توسعه منطقه ای 0
منصور خلیلی عراقی سجاد برخورداری

abstract governments in regional and national level try to improve economic and productivity growth by different polices. the being aware of effective factors in national and regional economic and productivity growth is essential for government success. in this paper, to being of aware determinant factors in productivity inequality, we use decomposition approach and econometric estimation for 2...

Journal: :medical journal of islamic republic of iran 0
farid najafi research center for environmental determinants of health, kermanshah university of medical sciences, kermanshah, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمانشاه (kermanshah university of medical sciences) behzad karami-matin research center for environmental determinants of health, kermanshah university of medical sciences, kermanshah, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمانشاه (kermanshah university of medical sciences) satar rezaei research center for environmental determinants of health, kermanshah university of medical sciences, kermanshah, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمانشاه (kermanshah university of medical sciences) ardashir khosravi tehran, iran, & non-communicable diseases research center, tehran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (tehran university of medical sciences) moslem soofi research center for environmental determinants of health, kermanshah university of medical sciences, kermanshah, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمانشاه (kermanshah university of medical sciences)

background: economic burden due to premature mortalities is significant both on health system and on the society as a whole. this study aimed to determine the productivity costs and years of potential life lost associated with five leading causes of death in iran from 2006 to 2010.   methods: data on mortality by sex and age-groups due to five main leading causes of death   (myocardial infarcti...

ژورنال: علوم زراعی ایران 2020
Farid, Nasrin, Ghalamboran, Mohammad Reza, Moradi Telavat, Mohammad Reza, Siadat, Seyed Ataollah,

This experiment was carried out to investigate the effect of biopolymer coated urea under deficit irrigation on ear yield, nitrogen uptake, nitrogen recovery efficiency and nitrogen use efficiency, grain protein and plant nitrogen content in sweet corn (KSc 403). The experiment was carried out in strip plot arrangement based on randomized complete block design with four replications in Agricult...

A. R. SEPASKHAH M. M. MOGHIMI

ABSTRACT- Efficient use of irrigation water for summer crops should be considered seriously due to rare occurrence of precipitation in summer. This research was focused on the assessment of water use efficiency for dominant crops of summer cropping pattern in the study area (i.e., maize and rice) via considering water productivity (WP) with different water management scenarios at farm level at ...

Journal: Pollution 2017

In Nigeria irrigated agriculture is an important tool for economic growth, food security, and poverty reduction during dry periods of rain-fed agriculture. The concentration and composition of dissolved constituents in water determines its quality for irrigation use. Water quality studies strongly suggest that agriculture is a leading source of water quality problems, due to pesticides and othe...

Journal: :اقتصاد و توسعه کشاورزی 0
احسانی احسانی دشتی دشتی حیاتی حیاتی قهرمان زاده قهرمان زاده

abstract some issues such as dehydration, local and chronological disproportion of rainfall, low productivity of water in agricultural sector, increasing demand for agricultural products due to increase in population participate with doughtiness are the most challenges of agricultural water. these factors caused water to be as one of the important and scarce inputs is agricultural products. the...

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