Chanin Kaewmanee, Chotiwut Techakijvej, C. Phalaraksh
{"title":"土地利用变化对泰国南河上游水质和洪水的影响","authors":"Chanin Kaewmanee, Chotiwut Techakijvej, C. Phalaraksh","doi":"10.12982/cmjs.2024.008","DOIUrl":null,"url":null,"abstract":"Land use change is a crucial issue when considering global dynamics and their interactions with the hydrologic properties of the soil and water management in catchment areas. Between 2017 to 2018, research was conducted on the effects of land use changes on water quality and flooding in the upper Nan River Basin. In Nan Province, land use is distributed as follows: natural forest protection covers 61.77 percent, agricultural purposes account for 35.23 percent, residential areas constitute 1.95 percent, and water usage represents 0.7 percent. The results indicate that the expansion of urban and agricultural regions has impacted the water quality of the river basin. A significant positive correlation was observed between agricultural land use and total phosphate content, while a strong negative correlation was found between forest land and total phosphate content. Residential occupancy and water quality demonstrated a strong correlation with total coliform contents. There were significant differences in water quality between the wet and dry seasons, particularly temperature, turbidity, total solids, total dissolved solids, and conductivity. Moreover, increases in annual and seasonal stream flow amounts were noted in relation to water levels and residential and construction projects.","PeriodicalId":9884,"journal":{"name":"Chiang Mai Journal of Science","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of Land Use Changes on Water Quality and Flooding in Upper Nan River, Thailand\",\"authors\":\"Chanin Kaewmanee, Chotiwut Techakijvej, C. Phalaraksh\",\"doi\":\"10.12982/cmjs.2024.008\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Land use change is a crucial issue when considering global dynamics and their interactions with the hydrologic properties of the soil and water management in catchment areas. Between 2017 to 2018, research was conducted on the effects of land use changes on water quality and flooding in the upper Nan River Basin. In Nan Province, land use is distributed as follows: natural forest protection covers 61.77 percent, agricultural purposes account for 35.23 percent, residential areas constitute 1.95 percent, and water usage represents 0.7 percent. The results indicate that the expansion of urban and agricultural regions has impacted the water quality of the river basin. A significant positive correlation was observed between agricultural land use and total phosphate content, while a strong negative correlation was found between forest land and total phosphate content. Residential occupancy and water quality demonstrated a strong correlation with total coliform contents. There were significant differences in water quality between the wet and dry seasons, particularly temperature, turbidity, total solids, total dissolved solids, and conductivity. Moreover, increases in annual and seasonal stream flow amounts were noted in relation to water levels and residential and construction projects.\",\"PeriodicalId\":9884,\"journal\":{\"name\":\"Chiang Mai Journal of Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2024-01-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chiang Mai Journal of Science\",\"FirstCategoryId\":\"103\",\"ListUrlMain\":\"https://doi.org/10.12982/cmjs.2024.008\",\"RegionNum\":4,\"RegionCategory\":\"综合性期刊\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MULTIDISCIPLINARY SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chiang Mai Journal of Science","FirstCategoryId":"103","ListUrlMain":"https://doi.org/10.12982/cmjs.2024.008","RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MULTIDISCIPLINARY SCIENCES","Score":null,"Total":0}
Effects of Land Use Changes on Water Quality and Flooding in Upper Nan River, Thailand
Land use change is a crucial issue when considering global dynamics and their interactions with the hydrologic properties of the soil and water management in catchment areas. Between 2017 to 2018, research was conducted on the effects of land use changes on water quality and flooding in the upper Nan River Basin. In Nan Province, land use is distributed as follows: natural forest protection covers 61.77 percent, agricultural purposes account for 35.23 percent, residential areas constitute 1.95 percent, and water usage represents 0.7 percent. The results indicate that the expansion of urban and agricultural regions has impacted the water quality of the river basin. A significant positive correlation was observed between agricultural land use and total phosphate content, while a strong negative correlation was found between forest land and total phosphate content. Residential occupancy and water quality demonstrated a strong correlation with total coliform contents. There were significant differences in water quality between the wet and dry seasons, particularly temperature, turbidity, total solids, total dissolved solids, and conductivity. Moreover, increases in annual and seasonal stream flow amounts were noted in relation to water levels and residential and construction projects.
期刊介绍:
The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.