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논문 기본 정보

자료유형
학술저널
저자정보
Mohammadreza Khaledian (University of Guilan) Mahmoud Shabanpour (University of Guilan) Hajar Alinia (University of Guilan)
저널정보
한국자원공학회 Geosystem Engineering Geosystem Engineering Vol.19 No.6
발행연도
2016.1
수록면
266 - 274 (9page)

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The objective of this study was to identify the effects of the tillage on some soil properties, and the spatial and temporal variability of some soil properties. The research was conducted in a small kiwi fruit garden under drip irrigation with high frequency. The garden is located at the University of Guilan in Rasht in the North of Iran. This study was based on the use of the Beerkan infiltration method to provide soil hydraulic properties using a single ring infiltration test. After that, Ks was calculated with the BEST algorithm. The spatial structure of Ks was identified by the semivariogram using the GS + software. After identifying spatial variation, seven sets of infiltration measurements were taken for temporal variations assessment in three selected points in the garden. The results demonstrated that hydraulic properties changed over time. This change was related to the effects of wetting and drying cycles, soil biological activity and the effects of the root system. Changes in wetting dimensions due to tillage and temporal variations of Ks were studied with Schwartzman and Zur equation. It can be recommended that in order to mitigate agro-environmental risk, the application of fertilizers should be done after the restructuration of tilled soil.

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