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The land use structure and biological service function of Dian-chi lake watershed are being changed by the rapid development of social economy and urbanization, which finally leads to the generation and aggravation of agriculture and urban non-point source pollution in whole basin. Thereby, it is necessary to study the relationship and spatiotemporal process between human activities and land use/cover...
Some problems are emerged in crop residues (CRs) utilization in China today. Based on management theory, it is regarded that shorting management thoughts and methods contribute to the failure of the projects of utilizing CRs, which both wasted the money and counteracted the utilization of CRs. The relationship cycle model is given to clear the relationship among the government, the institution, the...
At the age of post-Kyoto Protocol, international forestry carbon sequestration project not only has strongly achieved the form of harmoniously developing between economy and environment conservancy in developing countries, but also is promoting the relative research on theory and technology in Forestry Carbon Sequestration. And this paper has discussed that how to establish the Geo-Spatial Model of...
Trust plays an important role in the development, implementation and operation of e-commerce systems. This paper Analyzes the current research of e-commerce trust model and research method, proposes a formal model of e-commerce trust management based on reputation, disccusses the various issues involved and their solution ideas, which gives a good foundation for further research.
This article established the SV-MTVP (time-varying parameters of SV-M model) model to describe the crude oil price volatility. Based on Bayesian principle, this paper used of the MCMC methods to estimate the parameter of the SV-MTVP model. And then established the MS model and analyzed the change-point of crude oil price volatility which based on the estimated results of the time-varying parameters...
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