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Research Article
Leila Jafaria
University of Hormozgan
Corresponding Author
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Concerns about the negative effects of declining agricultural biodiversity due to modern agricultural practices and climatic constraints in various parts of the world, including Iran, on the sustainability of agricultural ecosystems are increasingly growing. However, the historical knowledge of temporal and spatial biodiversity is lacking. To identify the value and trend of crop diversity in Iran was used biodiversity indices based on the area under rainfed and irrigated crops and total from 1991 to 2018. The crop species diversity of irrigated cultivation was higher than the rainfed and total cultivations area. The Shannon and Simpson indices had experienced a constant trend, but species richness was increased, which was related to the rise in the area of some species in recent years. The area of wheat and barley had a significant impact on crop diversity so that Shannon diversity was reduced with their dominance. Overall, this study revealed that Iran's agricultural system relies on wheat and barley. We warn that by increasing the area of these crops and the prevalence of monoculture, the probability of damages increased due to external factors such as sudden weather changes or the spread of diseases and the important consequences of which will be instability and production risk in the future.
Keywords
monoculture, food, feed, fiber, fuel, multiple cropping, agricultural intensification, mechanization
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No competing interests reported.
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This preprint is under consideration at Scientific Reports. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Leila Jafaria
University of Hormozgan
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 17 May, 2021
No community comments so far
Reviews received
Received 14 Jun, 2021
Reviews received
Received 05 Jun, 2021
Reviewers agreed
On 29 May, 2021
Reviewers agreed
On 27 May, 2021
Reviewers agreed
On 25 May, 2021
Reviewers invited
Invitations sent on 24 May, 2021
Editor assigned
On 24 May, 2021
Editor invited
On 17 May, 2021
Submission checks complete
On 13 May, 2021
First submitted
On 12 May, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Concerns about the negative effects of declining agricultural biodiversity due to modern agricultural practices and climatic constraints in various parts of the world, including Iran, on the sustainability of agricultural ecosystems are increasingly growing. However, the historical knowledge of temporal and spatial biodiversity is lacking. To identify the value and trend of crop diversity in Iran was used biodiversity indices based on the area under rainfed and irrigated crops and total from 1991 to 2018. The crop species diversity of irrigated cultivation was higher than the rainfed and total cultivations area. The Shannon and Simpson indices had experienced a constant trend, but species richness was increased, which was related to the rise in the area of some species in recent years. The area of wheat and barley had a significant impact on crop diversity so that Shannon diversity was reduced with their dominance. Overall, this study revealed that Iran's agricultural system relies on wheat and barley. We warn that by increasing the area of these crops and the prevalence of monoculture, the probability of damages increased due to external factors such as sudden weather changes or the spread of diseases and the important consequences of which will be instability and production risk in the future.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
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