Optimizing cropping area by proposing a combined water-energy productivity function for Neyshabur Basin, Iran
| Autor: | Mohammad Mousavi Baygi, Yavar Pourmohamad, Amin Alizadeh, Mohammad Bannayan, Ali Naghi Ziaei, Mekonnen Gebremichael |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Irrigation
Profit (real property) business.industry 0208 environmental biotechnology Soil Science 04 agricultural and veterinary sciences 02 engineering and technology 020801 environmental engineering Agriculture Agricultural land 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Economic impact analysis business Water resource management Agronomy and Crop Science Cropping Productivity Groundwater Earth-Surface Processes Water Science and Technology |
| Zdroj: | Agricultural Water Management. 217:131-140 |
| ISSN: | 0378-3774 |
| DOI: | 10.1016/j.agwat.2019.02.040 |
| Popis: | Unsustainable groundwater withdrawal is a major challenge facing semi-arid and arid regions of the world, where groundwater is the primary source of irrigation water. Conversion of some agricultural land to fallow land is one of the possible solutions to reduce the groundwater withdrawal to bring it to safe yield. Such a solution has a negative economic impact. In this study, we have developed an optimization approach that can use used to identify the size (and type) of the agricultural area to be fallowed to ensure sustainable groundwater use for irrigation with as little economic impact as possible. This approach is based on the concept of profit productivity, which relies on Landsat imageries to calculate crop yield and irrigation water withdrawal, and available in-situ data to calculate energy cost. We have applied this approach to the Neyshabour basin in Iran that has been experiencing unsustainable groundwater withdrawal for the last 30 years. Our sample results indicate that in order to ensure sustainable groundwater withdrawal with minimum economic impact, 4% of the agricultural land needs to be converted to fallow land by fallowing most of the agricultural land used for growing tomatoes. |
| Databáze: | OpenAIRE |
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