A reseArch of theoreticAl frAmework for ecologicAl trAnsportAtion Empirical rEsEarch on construction of a mEasurEmEnt framEwork for tourism carbon Emission in china A research on environmental education development A study on fiscal and taxation policies for ecological compensation A reseArch on urbAn ecologicAl environment evAluAtion system:tAking the yAngtze river DeltA As An exAmple A Framework for the Assessment of Research and Its Impacts Research on domestic characteristic towns: A review Developing a modernized economy from the perspective of ecological civilization Towards a new climaTe economics:research areas and prospecTs Usage Count:A New Indicator to Detect Research Fronts