A projection pursuit model for comprehensive assessment on eco-environmental quality of regional agriculture Dynamic assessment and forecasting of provincial eco-environmental quality from matter element model and Markov chain— A case study of Jiangxi Province Eco-environmental quality assessment of Luoyuan Bay, Fujian Province of East China based on biotic indices. Eco-environmental sustainability assessment of each province in China Sediments eco-environmental quality assessment in the Changjiang Estuary and its adjacent waters