scholarly journals Studies on Respiratory Mechanism of Roots in Rice Plants Growing on Submerged Paddy Fields. : (3)·(4) The influence of water-percolation on growth of rice plants (1)·(2)

1958 ◽  
Vol 26 (4) ◽  
pp. 249-251
Author(s):  
H. UEDA ◽  
K. OYAMA
Keyword(s):  
Paddy Fields ◽  
Rice Plants ◽  
Water Percolation ◽  
Influence Of Water ◽  
Respiratory Mechanism

scholarly journals Studies on the Influence of Water-Percolation in Rice Plants during Ripening Period in Ill-Drained Paddy-Field.

1960 ◽  
Vol 29 (1) ◽  
pp. 43-46 ◽  
Author(s):  
Masae HAYASHI ◽  
Atushi HASHIZUME ◽  
Seijiro SHINOZUKA ◽  
Gyozo IGARASHI
Keyword(s):  
Paddy Field ◽  
Ripening Period ◽  
Rice Plants ◽  
Water Percolation ◽  
Influence Of Water

Evaluation of soil water percolation under different irrigation practices, antecedent moisture and groundwater depths in paddy fields

2017 ◽  
Vol 192 ◽  
pp. 149-158 ◽  
Author(s):  
Baoli Xu ◽  
Dongguo Shao ◽  
Xuezhi Tan ◽  
Xia Yang ◽  
Wenquan Gu ◽  
...  
Keyword(s):  
Soil Water ◽  
Paddy Fields ◽  
Antecedent Moisture ◽  
Water Percolation ◽  
Irrigation Practices

Speciation and Degradation of Triphenyltin in Typical Paddy Fields and Its Uptake into Rice Plants

2011 ◽  
Vol 45 (24) ◽  
pp. 10524-10530 ◽  
Author(s):  
Fabiane G. Antes ◽  
Eva Krupp ◽  
Erico M. M. Flores ◽  
Valderi L. Dressler ◽  
Joerg Feldmann
Keyword(s):  
Paddy Fields ◽  
Rice Plants

Behaviour of Iodine-129 in Rice Paddy Fields

1994 ◽  
Vol 353 ◽  
Author(s):  
Shigeo Uchida ◽  
Yasuyuki Muramatsu
Keyword(s):  
Soil Solution ◽  
Root Zone ◽  
Brown Rice ◽  
Iodine Concentration ◽  
Rice Paddy ◽  
Paddy Fields ◽  
Transfer Factors ◽  
Rice Plants ◽  
Continuous Deposition ◽  
Gray Lowland Soil

AbstractTransfer factors of iodine from soil to rice were obtained by laboratory experiments using 125I tracer. Two typical soil types in Japan, Andosol and Gray lowland soil, were used. The transfer factor (TF) is defined as ’concentration of the nuclide in a plant organ at harvest’ divided by ’concentration of the nuclide in dry soil’. The TFs for brown (hulled) rice were 0.006 for Andosol and 0.002 for Gray lowland soil. The TFs for different organs of rice plants decreased in the order of blade > stem > rachis > unhulled rice >> brown rice.The concentration of iodine in soil solution under flooded conditions varied with time during cultivation. The iodine concentration in rice plants seemed to be influenced by the soil solution.The effect of removal of 1–129 from paddy fields by harvesting rice plants was also modelled. Even assuming continuous deposition of 1–129 onto the field, annual harvesting of the blades and stems of rice plants could effectively reduce the amount of the nuclide in the root zone.

Temporal changes of radiocesium in irrigated paddy fields and its accumulation in rice plants in Fukushima

2016 ◽  
Vol 208 ◽  
pp. 562-570 ◽  
Author(s):  
Baolu Yang ◽  
Yuichi Onda ◽  
Yoshifumi Wakiyama ◽  
Kazuya Yoshimura ◽  
Hitoshi Sekimoto ◽  
...  
Keyword(s):  
Temporal Changes ◽  
Paddy Fields ◽  
Rice Plants

scholarly journals The influence of water percolation through crevasses on the thermal regime of a Himalayan mountain glacier

2020 ◽  
Vol 14 (4) ◽  
pp. 1273-1288 ◽  
Author(s):  
Adrien Gilbert ◽  
Anna Sinisalo ◽  
Tika R. Gurung ◽  
Koji Fujita ◽  
Sudan B. Maharjan ◽  
...  
Keyword(s):  
Thermal Regime ◽  
Simple Method ◽  
Mountain Glacier ◽  
Basal Ice ◽  
Water Percolation ◽  
Influence Of Water ◽  
Mechanical Models ◽  
Himalayan Mountain ◽  
Ground Penetrating ◽  
Transient Thermal

Abstract. In cold and arid climates, small glaciers with cold accumulation zones are often thought to be entirely cold based. However, scattering in ground-penetrating radar (GPR) measurements on the Rikha Samba Glacier in the Nepal Himalayas suggests a large amount of temperate ice that seems to be influenced by the presence of crevassed areas. We used a coupled thermo-mechanical model forced by a firn model accounting for firn heating to interpret the observed thermal regime. Using a simple energy conservation approach, we show that the addition of water percolation and refreezing in crevassed areas explains these observations. Model experiments show that both steady and transient thermal regimes are significantly affected by latent heat release in crevassed areas. This makes half of the glacier base temperate, resulting in an ice dynamic mainly controlled by basal friction instead of ice deformation. The timescale of thermal regime change, in response to atmospheric warming, is also greatly diminished, with a potential switch from cold to temperate basal ice in 50–60 years in the upper part of the glacier instead of the 100–150 years that it would take without the effect of the crevasses. This study highlights the crucial role of water percolation through the crevasses on the thermal regime of glaciers and validates a simple method to account for it in glacier thermo-mechanical models.

scholarly journals Yields from Rice Plants Cultivated under Tree Canopies in Rainfed Paddy Fields on the Central Plain of Laos

2013 ◽  
Vol 16 (4) ◽  
pp. 325-334 ◽  
Author(s):  
Shuichi Miyagawa ◽  
Maki Seko ◽  
Mari Harada ◽  
Sengdeaune Sivilay
Keyword(s):  
Paddy Fields ◽  
Rice Plants ◽  
Central Plain ◽  
Tree Canopies

Effects of loosing Aigamo ducks on the growth of rice plants, weeds, and the number of arthropods in paddy fields

2007 ◽  
Vol 7 (1) ◽  
pp. 38-43 ◽  
Author(s):  
SEISHU TOJO ◽  
MASAHIRO YOSHIZAWA ◽  
TAKASHI MOTOBAYASHI ◽  
KENGO WATANABE
Keyword(s):  
Paddy Fields ◽  
Rice Plants
Sign in / Sign up

Export Citation Format

Share Document