Assessment of ecological functions for coastal wetlands based on hydrogeomorphic units: a case study on coastal wetland of Yancheng, Jiangsu Province, China An integrated assessment and comparison of urban ecosystem functions for sixteen coastal cities in Chinese mainland and Taiwan Biological control efficiency of ladybirds on arthropod pests in cotton agroecosystems Assessment of ecological restoration function of the Coriaria nepalensis-Erianthus rufipilus community in the phosphorus-enriched degraded mountain area in the Lake Dianchi Watershed, Southwestern China