Search Results - "YOKOZAWA, MASAYUKI"

A social system to disperse the irrigation start date based on the spatial public goods game by Nakagawa, Yoshiaki, Yokozawa, Masayuki

“…In paddy rice cultivation, the amount of water used during the beginning of the irrigation season is the highest. However, there is a possibility of a water…”
Get full text

Impacts of El Niño Southern Oscillation on the global yields of major crops by Iizumi, Toshichika, Luo, Jing-Jia, Challinor, Andrew J., Sakurai, Gen, Yokozawa, Masayuki, Sakuma, Hirofumi, Brown, Molly E., Yamagata, Toshio

“…The monitoring and prediction of climate-induced variations in crop yields, production and export prices in major food-producing regions have become important…”
Get full text

Climate changes and trends in phenology and yields of field crops in China, 1981–2000 by Tao, Fulu, Yokozawa, Masayuki, Xu, Yinlong, Hayashi, Yousay, Zhang, Zhao

“…A warming trend has become pronounced since the 1980s in China and is projected to accelerate in the future. Concerns about the vulnerability of agricultural…”
Get full text

How much has the increase in atmospheric CO2 directly affected past soybean production? by Sakurai, Gen, Iizumi, Toshichika, Nishimori, Motoki, Yokozawa, Masayuki

“…Understanding the effects of climate change is vital for food security. Among the most important environmental impacts of climate change is the direct effect…”
Get full text

Historical changes in global yields: major cereal and legume crops from 1982 to 2006 by Iizumi, Toshichika, Yokozawa, Masayuki, Sakurai, Gen, Travasso, Maria Isabel, Romanernkov, Vladimir, Oettli, Pascal, Newby, Terry, Ishigooka, Yasushi, Furuya, Jun

“…AIM: Recent changes in crop yields have implications for future global food security, which are likely to be affected by climate change. We developed a…”
Get full text

In silico simulation modeling reveals the importance of the Casparian strip for efficient silicon uptake in rice roots by Sakurai, Gen, Satake, Akiko, Yamaji, Naoki, Mitani-Ueno, Namiki, Yokozawa, Masayuki, Feugier, François Gabriel, Ma, Jian Feng

“…Silicon (Si) uptake by the roots is mediated by two different transporters, Lsi1 (passive) and Lsi2 (active), in rice (Oryza sativa). Both transporters are…”
Get full text

Prediction of seasonal climate-induced variations in global food production by Iizumi, Toshichika, Sakuma, Hirofumi, Yokozawa, Masayuki, Luo, Jing-Jia, Challinor, Andrew J., Brown, Molly E., Sakurai, Gen, Yamagata, Toshio

“…Increasing volatility in food markets and the rising incidence of climatic extremes could lead to more frequent spikes in food prices. A global assessment of…”
Get full text

Probabilistic evaluation of climate change impacts on paddy rice productivity in Japan by Iizumi, Toshichika, Yokozawa, Masayuki, Nishimori, Motoki

“…Projecting the impacts of climate change includes various uncertainties from physical, biophysical, and socioeconomic processes. Providing a more comprehensive…”
Get full text

Competition among plants can lead to an increase in aggregation of smaller plants around larger ones by Nakagawa, Yoshiaki, Yokozawa, Masayuki, Hara, Toshihiko

“…•We constructed and simulated a spatially explicit, individual-based model.•Model parameters were estimated based on the observed data during 30…”
Get full text

Detecting temporal changes in the extent of annual flooding within the Cambodia and the Vietnamese Mekong Delta from MODIS time-series imagery by Sakamoto, Toshihiro, Van Nguyen, Nhan, Kotera, Akihiko, Ohno, Hiroyuki, Ishitsuka, Naoki, Yokozawa, Masayuki

“…This paper presents the methodology used to detect temporal changes in the extent of annual flooding within the Cambodia and the Vietnamese Mekong Delta (VMD)…”
Get full text

Global warming, rice production, and water use in China: Developing a probabilistic assessment by Tao, Fulu, Hayashi, Yousay, Zhang, Zhao, Sakamoto, Toshihiro, Yokozawa, Masayuki

“…Uncertainties in global climate models (GCMs) and emission scenarios affect assessments of the impact of global warming as well as the communication of…”
Get full text

Evaluation and intercomparison of downscaled daily precipitation indices over Japan in present-day climate: Strengths and weaknesses of dynamical and bias correction-type statistical downscaling methods by Iizumi, Toshichika, Nishimori, Motoki, Dairaku, Koji, Adachi, Sachiho A., Yokozawa, Masayuki

“…In this study, we evaluate the accuracy of four regional climate models (NHRCM, NRAMS, TRAMS, and TWRF) and one bias correction‐type statistical model (CDFDM)…”
Get full text

Impacts of land-use changes on surface warming rates and rice yield in Shikoku, western Japan by Yoshida, Ryuhei, Iizumi, Toshichika, Nishimori, Motoki, Yokozawa, Masayuki

“…We evaluated the impacts of historical land‐use changes (LUCs) from 1987 to 2006 on surface warming rates and rice yields on the island of Shikoku, Japan. We…”
Get full text

Analysis of rapid expansion of inland aquaculture and triple rice-cropping areas in a coastal area of the Vietnamese Mekong Delta using MODIS time-series imagery by Sakamoto, Toshihiro, Van Phung, Cao, Kotera, Aikihiko, Nguyen, Khang Duy, Yokozawa, Masayuki

“…We applied a remote-sensing method using MODIS time-series imagery to detect the expansion of intensive farming systems (shrimp farming and triple rice…”
Get full text

A Model of Silicon Dynamics in Rice: An Analysis of the Investment Efficiency of Si Transporters by Sakurai, Gen, Yamaji, Naoki, Mitani-Ueno, Namiki, Yokozawa, Masayuki, Ono, Keisuke, Ma, Jian Feng

“…Silicon is the second most abundant element in soils and is beneficial for plant growth. Although, the localizations and polarities of rice Si transporters…”
Get full text

Complex network analysis reveals novel essential properties of competition among individuals in an even-aged plant population by Nakagawa, Yoshiaki, Yokozawa, Masayuki, Hara, Toshihiko

“…•Competition in a large plant population was analyzed using complex network analysis.•A plant was regarded as a node, and competition between plants as a…”
Get full text

Technological spillover in Japanese rice productivity under long-term climate change: evidence from the spatial econometric model by Kunimitsu, Yoji, Kudo, Ryoji, Iizumi, Toshichika, Yokozawa, Masayuki

“…Rice productivity will be affected by climate conditions not only in own region but also in neighboring regions through technological spillover. Measuring such…”
Get full text

Dependency of parameter values of a crop model on the spatial scale of simulation by Iizumi, Toshichika, Tanaka, Yukiko, Sakurai, Gen, Ishigooka, Yasushi, Yokozawa, Masayuki

“…Reliable regional‐scale representation of crop growth and yields has been increasingly important in earth system modeling for the simulation of…”
Get full text

Future climate change, the agricultural water cycle, and agricultural production in China by Tao, Fulu, Yokozawa, Masayuki, Hayashi, Yousay, Lin, Erda

“…Climate change would have a major impact on the hydrological cycle and consequently on available water resources, the potential for flood and drought, and…”
Get full text

Modeling irrigation‐based climate change adaptation in agriculture: Model development and evaluation in Northeast China by Okada, Masashi, Iizumi, Toshichika, Sakurai, Gen, Hanasaki, Naota, Sakai, Toru, Okamoto, Katsuo, Yokozawa, Masayuki

“…Replacing a rainfed cropping system with an irrigated one is widely assumed to be an effective measure for climate change adaptation. However, many…”
Get full text