Ecosystem services valuation of the Haihe River basin wetlands Ecological function regionalization of Haihe River basin. Environmental benefit-loss analysis of agro-ecosystem in Haihe River basin, China. Evaluation of the forest ecosystem services in Haihe River Basin, China STUDIES ON THE CONTENT FEATURE OF SULPHUR IN PLANTS IN HAIHE RIVER BASIN CHARACTERISTICS OF NITROGEN AND CARBON CONTENTS IN PIANTS AND SOILS IN THE HAIHE RIVER BASIN Improvement of HIMS evapotranspiration module and its application in Haihe River Basin Study on the ecological water demands for typical estuaries in Haihe River Basin