Environmental policy and management
1. Modelling of Greenhouse Gas Emissions from Wheat Production in Irrigated and Rain-Fed Systems in Khorasan Razavi Province, Iran

Seyed Masood Motamed-Alshariati; Hassan Sadrnia; Mohammad Hossein Aghkhani; Mehdi Khojastehpour

Volume 7, Issue 1 , Winter 2017, , Pages 89-94

Abstract
  Agriculture has a key role in greenhouse gas emissions.  As such, the present study aimed to evaluate the greenhouse gas emissions from wheat production in irrigated and rain-fed systems. The primary data were collected from 116 wheat farmers. The results showed that the total greenhouse gas emissions ...  Read More

Environmental policy and management
2. Empirical Assessment of Environmental and Health Risks in Intensive Poultry Production in Kwara State, Nigeria

Busola Amolegbe Khadijat; Abimbola Usman Mutiat; Olayinka Animashaun Jubril

Volume 7, Issue 1 , Winter 2017, , Pages 59-70

Abstract
  The study was designed to assess the environmental and health risks arising from intensive poultry production in Kwara State, Nigeria. A total of 120 poultry farmers in Kwara State under the Poultry Association of Nigeria (PAN) were selected randomly for the study, and structured questionnaires were ...  Read More

Environmental policy and management
3. Valuing Recreational Benefits in an Aquatic Ecosystem Area with Contingent Valuation Method: Case of ShirinSou Wetland, Iran

Habib Shahbazi; Ahmad Samdeliri

Volume 7, Issue 1 , Winter 2017, , Pages 133-140

Abstract
  In this study, the recreational value of ShirinSou Wetland of the Kabodarahang County in Hamadan Province, Iran was estimated and the visitors' willingness to Pay (WTP) was measured by using Contingent Valuation Method (CVM) and One and One Half Bound model (OOHB) dichotomous choice (DC) questionnaire. ...  Read More

Farm Management
4. Farming Techniques, Environmental Challenges, and Technical Efficiency of Sweet Potato Production in Abia State, Nigeria

Nnamdi Ehirim; Glory Ben-Chendo; Stephen Onyeagocha; Ubon Essien; Emeka Osuji; Melissa Okwara

Volume 6, Issue 4 , Autumn 2016, , Pages 409-420

Abstract
  Viable sweet potato production is hard to achieve with indiscriminate use of farm inputs, resulting to wastage and environmental damages, as consequences are common problems of arable crop farming in Abia State. Issues arising from farm input use and their corresponding implications for environment called ...  Read More