Nutrients exported from upland stream water enlarge perennial biomass crops

Abstract Rawanbuki, a variety of Japanese butterbur (Petasites japonicus subsp. giganteus), grow naturally along the Rawan River, Hokkaido, northern Japan. Most plants reach 2–3 m in height and 10 cm in diameter in 2 months and are much larger than those grown along other rivers. We examined the hyp...

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Autores principales:	Masaaki Chiwa, Yasuhiro Utsumi, Naoaki Tashiro, Yuko Yasuda, Ken’ichi Shinozuka, Yang Ru, Nao Nagano, Shusuke Murata, Takuma Nakamura, Kohei Yamauchi, Yuji Kabemura, Tatsuro Ando, Hiroshi Sawamura
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1d7c6da31b7f42b0ada9e32d1459eab1
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spelling	oai:doaj.org-article:1d7c6da31b7f42b0ada9e32d1459eab12021-12-02T13:24:17ZNutrients exported from upland stream water enlarge perennial biomass crops10.1038/s41598-021-81191-x2045-2322https://doaj.org/article/1d7c6da31b7f42b0ada9e32d1459eab12021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81191-xhttps://doaj.org/toc/2045-2322Abstract Rawanbuki, a variety of Japanese butterbur (Petasites japonicus subsp. giganteus), grow naturally along the Rawan River, Hokkaido, northern Japan. Most plants reach 2–3 m in height and 10 cm in diameter in 2 months and are much larger than those grown along other rivers. We examined the hypothesis that nutrients exported from upland streams enhance the growth of the Rawanbuki. Nutrient concentrations, including nitrogen, phosphorus, and base cations, in the Rawan River were much higher than those in rivers of adjacent watersheds. High nutrient concentrations and moisture contents were found in soil along the Rawan River and a significant relationship was found between physicochemical soil conditions and aboveground biomass of butterburs. This indicates that extremely large Rawanbuki plants could be caused by these high nutrient concentrations and moisture contents in the soils. A manipulation experiment showed that fertilization simulated the growth environment along the Rawan River and enhanced the stem height and stem diameter of butterburs. This study concluded that the extremely large butterburs are caused by a large amount of nutrients exported from upland areas. These results are the first demonstration of the role of stream water nutrients in enlarging agricultural crops.Masaaki ChiwaYasuhiro UtsumiNaoaki TashiroYuko YasudaKen’ichi ShinozukaYang RuNao NaganoShusuke MurataTakuma NakamuraKohei YamauchiYuji KabemuraTatsuro AndoHiroshi SawamuraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Masaaki Chiwa Yasuhiro Utsumi Naoaki Tashiro Yuko Yasuda Ken’ichi Shinozuka Yang Ru Nao Nagano Shusuke Murata Takuma Nakamura Kohei Yamauchi Yuji Kabemura Tatsuro Ando Hiroshi Sawamura Nutrients exported from upland stream water enlarge perennial biomass crops
description	Abstract Rawanbuki, a variety of Japanese butterbur (Petasites japonicus subsp. giganteus), grow naturally along the Rawan River, Hokkaido, northern Japan. Most plants reach 2–3 m in height and 10 cm in diameter in 2 months and are much larger than those grown along other rivers. We examined the hypothesis that nutrients exported from upland streams enhance the growth of the Rawanbuki. Nutrient concentrations, including nitrogen, phosphorus, and base cations, in the Rawan River were much higher than those in rivers of adjacent watersheds. High nutrient concentrations and moisture contents were found in soil along the Rawan River and a significant relationship was found between physicochemical soil conditions and aboveground biomass of butterburs. This indicates that extremely large Rawanbuki plants could be caused by these high nutrient concentrations and moisture contents in the soils. A manipulation experiment showed that fertilization simulated the growth environment along the Rawan River and enhanced the stem height and stem diameter of butterburs. This study concluded that the extremely large butterburs are caused by a large amount of nutrients exported from upland areas. These results are the first demonstration of the role of stream water nutrients in enlarging agricultural crops.
format	article
author	Masaaki Chiwa Yasuhiro Utsumi Naoaki Tashiro Yuko Yasuda Ken’ichi Shinozuka Yang Ru Nao Nagano Shusuke Murata Takuma Nakamura Kohei Yamauchi Yuji Kabemura Tatsuro Ando Hiroshi Sawamura
author_facet	Masaaki Chiwa Yasuhiro Utsumi Naoaki Tashiro Yuko Yasuda Ken’ichi Shinozuka Yang Ru Nao Nagano Shusuke Murata Takuma Nakamura Kohei Yamauchi Yuji Kabemura Tatsuro Ando Hiroshi Sawamura
author_sort	Masaaki Chiwa
title	Nutrients exported from upland stream water enlarge perennial biomass crops
title_short	Nutrients exported from upland stream water enlarge perennial biomass crops
title_full	Nutrients exported from upland stream water enlarge perennial biomass crops
title_fullStr	Nutrients exported from upland stream water enlarge perennial biomass crops
title_full_unstemmed	Nutrients exported from upland stream water enlarge perennial biomass crops
title_sort	nutrients exported from upland stream water enlarge perennial biomass crops
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1d7c6da31b7f42b0ada9e32d1459eab1
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Nutrients exported from upland stream water enlarge perennial biomass crops

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