Long term positioning observation dataset of water content at Helen Station (2005, 2010, 2015)

a. Data content (data file/table name, including observation index content)The long-term positioning observation dataset of water content at Hailun Station (2005, 2010, 2015) reflects the farmland water situation in Hailun City, Heilongjiang Province, including multiple indicators such as soil moisture content, ion concentration, water storage, runoff, evaporation, irrigation, and evapotranspiration.b. Construction purposeMainly used for monitoring the dynamic changes of the national farmland ecosystem and researching related aspects of agricultural ecology.c. Service objectNational policy makers, students and researchers engaged in related research, management and teaching personnel, etc.d. Time range of data2005, 2010, 2015e. The spatial range of dataNational Field Science Observation and Research Station of Heilongjiang Hailun Agricultural Ecosystem in Hailun City, Heilongjiang Province