scholarly journals Analysis of eutrophic state at the southern basin of Lake Biwa. (3) Time series variation of eutrophic state.

1984 ◽  
Vol 13 (11) ◽  
pp. 781-785
Author(s):  
Shigeo FUJII ◽  
Isao SOMIYA
Keyword(s):  
Time Series ◽  
Lake Biwa ◽  
Southern Basin

Echosounding observations of coverage, height, PVI, and biomass of submerged macrophytes in the southern basin of Lake Biwa, Japan

Limnology ◽  
2007 ◽  
Vol 8 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Hiroki Haga ◽  
Taisuke Ohtsuka ◽  
Masanari Matsuda ◽  
Minako Ashiya
Keyword(s):  
Lake Biwa ◽  
Submerged Macrophytes ◽  
Southern Basin

Statistical Analysis of Grain Size Distribution in Pleistocene Sediments from Lake Biwa, Japan

1988 ◽  
Vol 30 (1) ◽  
pp. 12-18 ◽  
Author(s):  
Kenji Kashiwaya ◽  
Atsuyuki Yamamoto ◽  
Kaoru Fukuyama
Keyword(s):  
Time Series ◽  
Grain Size ◽  
Statistical Analysis ◽  
Size Distribution ◽  
Lake Biwa ◽  
Size Distributions ◽  
Solar Insolation ◽  
The Past ◽  
Grain Size Distributions ◽  
Milankovitch Theory

Time series of grain-size distributions from Pleistocene sediments deposited in Lake Biwa during the past 550 millennia show dominant periods of 40,000 and 20,000 yr that are very close to those predicted by the Milankovitch theory, as well as a period of about 70,000 yr not directly predicted by this theory. The 70,000-yr period is strongest, followed by the 20,000-yr period. The sequences also show that coarser particles were deposited, in general, during strong solar insolation, whereas finer particles were deposited during weak insolation.

scholarly journals Run-off of Herbicides from Paddy Fields around the Southern Basin of Lake Biwa.

1996 ◽  
Vol 19 (7) ◽  
pp. 547-556 ◽  
Author(s):  
Yasuhiro SASAGAWA ◽  
Saburo MATSUI ◽  
Harumi YAMADA
Keyword(s):  
Lake Biwa ◽  
Paddy Fields ◽  
Southern Basin ◽  
Run Off
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