Atmospheric and Hydrospheric Sciences(A)
Session Sub-categoryHydrology & Water Environment
Session IDA-HW20
TitleMaterials transport and nutrient cycles in watersheds; Human and climate impacts
Short TitleWatershed material transport & nutrient cycle
Main ConvenerNameMitsuyo Saito
AffiliationGraduate School of Environmental and Life Science, Okayama University
Co-Convener 1NameShin-ichi Onodera
AffiliationGraduate School of Integrated and Arts Sciences, Hiroshima University
Co-Convener 2NameTakahiro Hosono
AffiliationPriority Organization for Innovation and Excellence, Kumamoto University
Co-Convener 3NameAdina Paytan
AffiliationUniversity of California Santa Cruz
Session LanguageEE
ScopeThis session aims to synthetize watershed sciences in order to understand dynamical processes of materials transport and nutrient cycles in watersheds from headwaters to coastal seas focusing on human and climate impacts. The session will be integrating a variety of research disciplines including limnology, ground water hydrology, coastal oceanography, meteorology, pedology, sedimentology, forestry, agriculture, fishery, social science and more. The watershed sciences also challenge us to solve environmental issues emerged in the watersheds through our profound understanding of relations between humanity and nature. For instance, on one hand, human land uses alter water resources, dynamics of sediments, nutrients and pollutants in waters and soils on watershed scales, while changing climates may alter water cycle, the frequency and intensity of materials transport and natural disaster, sometimes having catastrophic effects on the watershed systems. This session also calls for ideas on new methods for the watershed sciences, such as tracer and molecular technique, hydrological modeling, paleontological approaches, laboratory and field experiments, social-scientific evaluation of ecosystem services and social-ecological systems, and so on, in order to elucidate physical, chemical and biological mechanisms for shedding light on natural phenomena and their changes over time in complex and dynamic watershed systems. Through this session, we would like to facilitate interdisciplinary collaboration among participants to create new knowledge on watershed sciences.
Presentation FormatOral and Poster presentation
Joint Session withAGU
Co-Sponsoring Societies
(Society Members)
The Oceanographic Society of Japan, Japanese Association of Hydrologic of Science, The Sedimentological Society of Japan., Japanese Association of Groundwater Hydrology, Japanese society of soil physics, The Japanese Society of Physical Hydrology
Invited Authors
  • Adina Paytan (University of California Santa Cruz)
  • Jianyao CHEN (Sun Yastsen University)
  • Iwan Ridwansyah (Research Center for Limnology Indonesian Institute of Sciences)
  • Takeo Onishi (Faculty of Applied Biological Sciences, Gifu University)
Time Presentation No Title Presenter Abstract
Oral Presentation May 20 PM1
13:50 - 14:10 AHW20-01Assessing Cumulative Effects of Climate Change Manipulations on Phosphorus Limitation in a Californian GrasslandAdina Paytan Abstract
14:10 - 14:25 AHW20-02Biodiversity and phosphorus cycling in the river ecosystemNoboru Okuda Abstract
14:25 - 14:40 AHW20-03Spatial variation in phosphorus and nitrogen spiral metrics in a tropical watershed in relation to land usesIrisse Bianca Baldovino De Jesus Abstract
14:40 - 14:55 AHW20-04Land-use and topographic characteristics control nitrate concentration in river water of Lake Kitaura Basin, JapanTetsuro Kikuchi Abstract
14:55 - 15:15 AHW20-05Reconstruction of environmental changes and anthropogenic activities based on sedimentary records in the Pearl River Delta, ChinaJianyao CHEN Abstract
Oral Presentation May 20 PM2
15:30 - 15:45 AHW20-06Historical changes of water quality and circulation type in Lake Tazawa, JapanKazuhisa A. Chikita Abstract
15:45 - 16:00 AHW20-07Estimation of Lacustrine Groundwater Discharge (LGD) via two paths in Lake Biwa, JapanShin-ichi Onodera Abstract
16:00 - 16:15 AHW20-08Estimation of lacustrine groundwater discharge into Biwa LakeKunyang Wang Abstract
16:15 - 16:30 AHW20-09Groundwater hydrochemical condition in Delta Cimanuk River, West Java, IndonesiaAnna Fadliah Rusydi Abstract
16:30 - 16:45 AHW20-10Stable Isotopes Reveal Anthropogenic Impacts on the Littoral Food Webs of Laguna de Bay, PhilippinesElfritzson Martin Peralta Abstract
16:45 - 17:00 AHW20-11The examination of environmental factors on the community composition of riverine bacteria and microalgae in an epilithon during irrigation season in the Yasu River, JapanTohru Ikeya Abstract
Oral Presentation May 21 AM1
09:00 - 09:15 AHW20-12Modelling Surface and Shallow Groundwater Interactions in Cimanuk Catchment Area using the SWAT ModelIwan Ridwansyah Abstract
09:15 - 09:30 AHW20-13A comparative study on evapotranspiration methods using SWAT model in a forest-dominated watershed, western JapanYuta Shimizu Abstract
09:30 - 09:45 AHW20-14Estimation of flow path in headwater area, using hourly resolution SWAT Model analysisYang Cao Abstract
09:45 - 10:00 AHW20-15Elemental distributions in a high biodiversity forested catchment in SingaporeTrinh Canh Tien Nguyen Abstract
10:00 - 10:15 AHW20-16The rate of capillary rise in sandstone: experiment and modelingTadashi Yokoyama Abstract
10:15 - 10:30 AHW20-17Transportation and accumulation of geogenic arsenic (As) from soil water to paddy rice via irrigation water at Japanese paddy rice fields in river systemShinji Nakaya Abstract
Oral Presentation May 21 AM2
10:45 - 11:00 AHW20-18Evaluation of climate change impacts on discharge and water quality of the Ise Bay watershedsTakeo Onishi Abstract
11:00 - 11:15 AHW20-19Calculation of N, P, and SS load factors by a simple basin land-use model –Analysis of Hokkaido and Tohoku regions–Seiko Yoshikawa Abstract
11:15 - 11:30 AHW20-20Estimation of dissolved chemical loading flowing into Lake Issyk-KulKei Saitoh Abstract
11:30 - 11:45 AHW20-21Nitrate concentrations of groundwater and surface water in Sao Paulo State, Brazil.
The reasons why they are low.
Norio Tase Abstract
11:45 - 12:00 AHW20-22Nitrogen in groundwater of agricultural areas in São Paulo State, BrazilMitsuyo Saito Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 21 Core Time
AHW20-P01 Application of Model for Prediction Across Scales in Drought Index and Reservoir Inflow Estimation Yu-Chi Wang Abstract
AHW20-P02 Daily rainfall forecasting through an ensemble numerical weather prediction system with an AI-based integration strategy Ming-Chang Wu Abstract
AHW20-P03 An assessment of Water and Nutrient dynamics in a large agricultural watershed in Brazil using SWAT model Yuta Shimizu Abstract
AHW20-P04 Attempt to quantify the water resource storage function of company-owned forests —A case study of "Asahi no Mori"— Rei Sato Abstract
AHW20-P05 Estimating water budget in forested watershed flowing to Ariake-sea using SWAT model Soichiro Fujii Abstract
AHW20-P06 A comparison of initial deposition and current inventory of radiocesium in forest ecosystems surrounding Tokyo metropolitan area Yuko Itoh Abstract
AHW20-P07 Dynamics of radioactive and stable cesium in a forest in Fukushima, Japan Masahiro Kobayashi Abstract
AHW20-P08 Annual Variation in Sediment Yield and Nutrient Load in Chugoku Region, Western Japan Fandy Tri Admajaya Abstract
AHW20-P09 Long term variation of water balance controlled by land use change in an urbanization catchment, Yamato River Kunyang Wang Abstract
AHW20-P10 Estimation of water budget including deep groundwater discharge in small islands, using hourly resolution SWAT Model analysis Yang Cao Abstract
AHW20-P11 Hydrogen and oxygen stable isotopic ratio altitude effect and water quality features on the east coast of Lake Biwa Yusuke Tomozawa Abstract
AHW20-P12 Spatial variations of stable isotopic and biogeochemical properties at headwater catchments Tomoki Ohira Abstract
AHW20-P13 Changes in the surrounding water environment due to Ontake volcano (140927) Kazuki Asami Abstract
AHW20-P14 Influence of Hakone volcanic eruption (150629) on the surrounding water environment Masaki Horiuchi Abstract
AHW20-P15 A comparative Study on Water Environment of Isolated Islands -
Focusing on Islands in Nagasaki Prefecture - (2)
Go Yamaki Abstract
AHW20-P16 A preliminary study of redox conditions of groundwater in the coastal area of Indramayu, Indonesia Seiichiro Ioka Abstract
AHW20-P17 Nitrate Dual-Stable Isotope Analysis Identifies Sources of Groundwater Nitrogen Pollution in the Silang-Sta. Rosa Subwatershed of Laguna de Bay Osbert Leo Alcantara Privaldos Abstract
AHW20-P18 Effect of over-levee irrigation on nutrient concentration in paddy field Takuya Ishida Abstract
AHW20-P19 Influence of new introduction of circulation irrigation on water quality in Inbanuma, Chiba, Japan Tomijiro Kubota Abstract
AHW20-P20 Effects of agricultural practices in rice crop systems on the diversity of periphyton and phosphorus dynamics in streams of the Yasu River watershed Tomoya Iwata Abstract
AHW20-P21 What is difference between orthophosphate and SRP in lake waters? Rong YI Abstract
AHW20-P22 Zooplankton Community Structure in the Littoral Zones of Laguna de Bay reflects Land Cover and Nutrient Loading in near-shore areas Mary Michelle Villanueva Guinto Abstract
AHW20-P23 Migration history of pelagic crucian carp " Carassius auratus grandoculis" endemic to Lake biwa: Reconstructed from otolith strontium stable isotope. Yoshitoshi Uehara Abstract
AHW20-P24 Feasibility study for toxicity evaluation of river sediments by bioassay using Chironomus yoshimatsui Shinji Nakaya Abstract
AHW20-P25 Observation for the groundwater inflow to the lagoons connected to Lake Biwa Mitsuyo Saito Abstract
AHW20-P26 Typhoon impact submarine groundwater discharge and its nutrient load in a tidal flat MINAMI MORITA Abstract
AHW20-P27 Estimation of erosion rate and deposition process of a small pond in an agricultural catchment, subtropical small island Shin-ichi Onodera Abstract
AHW20-P28 Effects of Dam Construction on Suspended Sediment and Dissolved Solids Transport in the Ca River, North-Central Vietnam Phuong Thi Ho Abstract
AHW20-P29 Possibility of Nitrogen Emissions Evaluation from the Viewpoint of State-Scale Agricultural Product Production and Transport in Brazil Kunihide Miyaoka Abstract