Construction of pasturing system for sustainable water environment in Mongolia

2015 Fiscal Year Final Research Report

• Project/Area Number: 24405046
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Boundary agriculture
• Research Institution: Tohoku University
• Principal Investigator: Nakai Yutaka 東北大学, (連合)農学研究科(研究院), 教授 (80155655)
• Co-Investigator(Kenkyū-buntansha): TADA Chika 東北大学, 大学院農学研究科, 准教授 (30413892) ; YOSHIHARA You 東北大学, 大学院農学研究科, 助教 (50552379) ; YONEZAWA Chinatsu 東北大学, 大学院農学研究科, 准教授 (60404844) ; TAJIMA Ryosuke 東北大学, 大学院農学研究科, 助教 (60530144) ; IKEDA Minoru 東北大学, 大学院農学研究科, 准教授 (70232204)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 水環境 / 病原性微生物 / モンゴル / 遊牧 / 遺伝子多様性 / 衛生画像解析 / 管理

Outline of Final Research Achievements

The effects of water quality in the Tuul River in Mongolia on the genetic diversity of fish and animal health were investigated. The water in the Tuul River was more polluted downstream. In 2014, very high numbers of Escherichia coli were detected in well water. Pathogenic E. coli was detected in animal feces. Sheep and goats had high carriage rates. Cryptosporidium was detected in cattle feces and river water. In 2015, the numbers of E coli in well water decreased after changing the well structure. Sheep that drank water downstream had a higher rate of pathogenic E. coli infection. The genetic diversity of fish was similar to that of fish in Lake Baikal. Satellite image analysis showed that vegetation was better farther from roads. The regulation of well construction and the use of pastures may make the pasturing environment sustainable.

Free Research Field

環境微生物