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Dam breach would bring great loss to people’s life and properties, further, loss assessment of dam breach is an important part of dam risk management, which can provide important theoretical support for risk decision-making. In this study, the research progress of dam breach induced loss around the world was introduced, respectively for loss of life, economic loss, and ecologicalloss. According to the comparison of the evaluation indicators and simulation results for each loss assessment model, the advantages and disadvantages of the established models were studied. Simultaneously, the limitations of objective factors such as lack of measured data on dam breach loss assessment were discussed; in addition, some advices were put forward for the future research work. It is pointed out that: the reliability of basic data is crucial to the establishment and validation of dam failure loss assessment methods, and the lack of historical dam failure data and confusing records also restrict the establishment of assessment methods; the distillation and analysis of various loss influencing factors are the basis of dam failure loss assessment, and the quantification process of influencing factors also has an important impact on the reliability and accuracy of assessment models; the current domestic and international studies on dam failure loss of life and economic loss are mainly based on static indicators. The current studies on the loss of life and economic loss of dam failure at home and abroad are mainly based on static indicators, but the influence of human intervention to the assessment results of dam failure loss should be fully considered, and the dynamics of the dam failure evacuation system can be studied based on human behavior and social organization mechanisms to explore the quantitative relationship between dynamic indicators and dam failure loss, and to establish a comprehensive index system and dynamic assessment model for dam failure loss assessment. [ABSTRACT FROM AUTHOR]

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Taking Jiuli mine area of Xuzhou as an example, a NPP evaluation was taken by CASA model. The results indicate that: it is available to scale mining eco-environment by NPP; during the period of 1987--2008, the NPP decreased from 18.019 to 9. 261 gC/( m2 · month), and the average variation of NNP increased from 0. 293 to 3. 389 gC/(m² · month). With the increase of mining activity, ecological loss increased gradually; the variation of NPP in the ecological damage area was from 2. 752 to 4. 752 gC/( m² · month). The variation of NPP in the ecological influencing area was from 0. 152 to 0. 352 gC/( m² · month). The average variation in the ecological damage area was greater than the ecological influencing area; there is a significantly positive con-elation between NPP reduction and mining capacity. NPP begins to decrease in the construction period of mine, and NPP reduces markedly in the high stable production period of mining, and subsequently NPP has an increasing trend during the decay period of mining, and the mining eco-environment developes to the bright side. [ABSTRACT FROM AUTHOR]