PMID- 20962399
OWN - NLM
STAT- MEDLINE
DCOM- 20110103
LR  - 20131121
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 62
IP  - 8
DP  - 2010
TI  - Estimation of total nitrogen transport and retention during flow in a catchment 
      using a mass balance model incorporating the effects of land cover distribution 
      and human activity information.
PG  - 1837-47
LID - 10.2166/wst.2010.208 [doi]
AB  - The load of total nitrogen (TN) in stream water was surveyed in the Nagara River 
      Basin (2,000 km(2)), central Japan. Multivariate analysis placed the TN data in 
      an environmental and social context, relating TN to land use conditions such as 
      geologic features, population density, and percentage of the population using the 
      sewer system. Multivariate analysis was used to examine relationships among the 
      land use distribution with and without human activity and the amount of pollution 
      effluent from waste water treatment plants (WWTP). The pollution load in stream 
      water is related to characteristics of the land cover in the river basin, so the 
      influence of land use on the pollutant load was investigated. However, key 
      factors affecting the pollutant load are human activities associated with the 
      land use. In this study, a relationship between pollutant load, land use, and 
      human activity is developed. Land use was estimated from Landsat data using 
      ISODATA clustering. The distribution of the land cover factors was related to 
      human activities, i.e. population density, agricultural production, industrial 
      wastewater discharge, percentage of sewered population, and stock breeding in the 
      catchment. Multivariate analysis related the TN data to land use and human 
      activities. However, the types of land use were found to be insufficient to 
      evaluate the TN, which appeared to be largely governed by other human-related 
      factors such as industrial wastewater discharge, agricultural production, 
      population density, and livestock density. Socioeconomic data, were obtained from 
      government agencies. The results indicate that the TN load outflow 
      characteristics of the study catchment were affected not only by outside human 
      activity, but also largely by the various human activities in the small drainage 
      basin. Industrial waste water contributed as much to the pollution load outflow 
      as did human activity. This is shown quantitatively in that land use information 
      collected at the same time as that collected on human activities provides 
      effective baseline data. The model proposed here is suitable for evaluating best 
      management practices.
FAU - Mouri, Goro
AU  - Mouri G
AD  - The University of Tokyo, Meguro-ku, Tokyo 53-8505, Japan. 
      mouri@rainbow.iis.u-tokyo.ac.jp
FAU - Shinoda, Seirou
AU  - Shinoda S
FAU - Oki, Taikan
AU  - Oki T
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - 0 (Water Pollutants, Chemical)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Environmental Monitoring
MH  - Geological Phenomena
MH  - Humans
MH  - Japan
MH  - *Models, Theoretical
MH  - Multivariate Analysis
MH  - Nitrogen/*analysis
MH  - *Population Density
MH  - Rivers/*chemistry
MH  - Socioeconomic Factors
MH  - Water Movements
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2010/10/22 06:00
MHDA- 2011/01/05 06:00
CRDT- 2010/10/22 06:00
PHST- 2010/10/22 06:00 [entrez]
PHST- 2010/10/22 06:00 [pubmed]
PHST- 2011/01/05 06:00 [medline]
AID - 10.2166/wst.2010.208 [doi]
PST - ppublish
SO  - Water Sci Technol. 2010;62(8):1837-47. doi: 10.2166/wst.2010.208.