Estimation of the infiltration rate of a paddy field in Yun-Lin, Taiwan

Liu, Chen‐Wuing; Chen, Shih-Kai; Jou, Shew-Wen; Kuo, Sheng-Feng

doi:10.1016/s0308-521x(00)00062-7

Cited by 34 publications

(21 citation statements)

References 3 publications

(6 reference statements)

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“…In a paddy field, there is a variable ponding water depth above the top surface soil. Meanwhile, the top layer of the field soil itself comprises a low flow-resistant plow layer, followed below by a high flow-resistant hardpan layer, with a nonpuddled subsoil layer with, silty loam, or sandy loam soil type comprising the bottom (Kohno et al 1995;Liu et al 2001;Chen et al 2002;Aimrun et al 2004). Table 1 shows physical and chemical characteristics of plow layer of the paddy soil used for entire experiments (Watanabe et al 2007).…”

Section: Resultsmentioning

confidence: 99%

Micro paddy lysimeter for monitoring solute transport in paddy environment

Thuyet

Hien

Watanabe

et al. 2010

Paddy Water Environ

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The micro paddy lysimeter (MPL) was developed and evaluated for its performance to simulate solute transport in paddy environment under laboratory conditions. MPLs were constructed using soil collected from Field Museum Honmachi of Tokyo University of Agriculture and Technology, Japan. For the physical characteristics of the hardpan layer, parameters such as thickness, and soil aggregate size, affecting the percolation rate were studied. For the plow layer, two types of plow soils, sieved and un-sieved soils were compared. The sieved soil plow layer was produced by mixing air-dried soils of different aggregate sizes of D [ 9. 50, 9.50 C D [ 4.75, 4.75 C D [ 2.0 mm and D B 2.0 mm at 47.1, 19.5, 20.6, and 12.8%, respectively. The un-sieved plow layer soil was directly used after collecting from the field. Inert tracer was applied to ponding water with controlled boundary conditions to evaluate the reproducibility of the soil hydraulic characteristics. HYDRUS-1D was used to evaluate the movement of bromide tracer in the MPL. The proposed conditions of the MPL were that the hardpan layer can be made from soil aggregates smaller than 0.425 mm with 2 cm thickness and that the plow layer can be prepared with sieved or un-sieved soils. With these conditions, the obtained results proved that MPLs can be a useful tool to simulate solute transport in paddy environment.

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Section: Resultsmentioning

confidence: 99%

Micro paddy lysimeter for monitoring solute transport in paddy environment

Thuyet

Hien

Watanabe

et al. 2010

Paddy Water Environ

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“…A location in the southwestern part of the district was used. The area of each paddy field is about 30 m × 100 m. The study fields were cultivated in normal farming methods for paddy rice, as other paddy fields in Japan or other countries (e.g., Liu et al, 2001;Kim et al, 2006). The paddy fields in the district were surrounded by earthen levees and ponded during the irrigation period except the mid-summer drainage season.…”

Section: Field Investigation Of the Paddy Fieldmentioning

confidence: 99%

Cyclic Irrigation for Reducing Nutrients and Suspended Solids Loadings from Paddy Fields in Japan

Hama¹

2012

Irrigation - Water Management, Pollution and Alternative Strategies

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“…Infiltration rate restricts the entrance of water into the soil or porous material (Liu et al, 2001). The restriction often occurs at the soil surface.…”

Section: Infiltration Ratementioning

confidence: 99%

Land assessment for flood spreading site selection using geospatial information system

Alesheikh

Soltani

Nouri

et al. 2008

Int. J. Environ. Sci. Technol.

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AB STRA CT: Irregular patterns of precipitations from temporal as well as spatial perspectives not only cause destructions but also waste surface water resources. Hence, controlling surface water and leading the flood to underground stores improve the efficiency of water usage. Selecting appropriate sites for optimal use of water floods is one of the most important factors in recharging underground water tables in dry lands where the agricultural and rangelands are vulnerable. Traditional methods of site selections are, however, time consuming and error prone. This paper attempts to; analyze existing schemes of site selection; introduces an appropriate method of locating flood-spreading sites using Geospatial Information System; implements the strategy in a case study; and scientifically assesses its results. The study area of this research is Samal sub-basin covering 31571.7 ha of Ahrom basin in Boushehr province. In the present research, factors pertain to earth sciences (quaternary units, slope and landuse) and hydrology (runoff infiltration rate and aquifers' depth) are considered. Information layers are weighted, classified and integrated through several models such as boolean logics, index overlay and fuzzy logics. The results are then checked against the existing sites to estimate their accuracy. The results of this research demonstrated that fuzzy logic operators including gamma=0.1, gamma=0.2 and products of fuzzy logics yield the best when compared to control fields and therefore, the models are introduced as the most suitable site selection strategies for flood spreading.

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Estimation of the infiltration rate of a paddy field in Yun-Lin, Taiwan

Cited by 34 publications

References 3 publications

Micro paddy lysimeter for monitoring solute transport in paddy environment

Micro paddy lysimeter for monitoring solute transport in paddy environment

Cyclic Irrigation for Reducing Nutrients and Suspended Solids Loadings from Paddy Fields in Japan

Land assessment for flood spreading site selection using geospatial information system

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