Search

Global renewable energy have maintained a steady growth in recent years under the support of national policies and energy demand. Resource distribution, land supply, economy, voltage class and other relevant conditions affect the renewable energy distribution and development mode. Therefore, is necessary to analyze the spatialtemporal distribution and development modes for renewable energy, so as to provide reference and guidance for the renewable energy development around world. Firstly, the definitions and influence factors the renewable energy development mode are compared and summarized. Secondly, the renewable energy spatial-temporal distribution in Germany and Denmark are provided. Wind and solar power installations account for the largest proportion of all renewable energy in Germany and Denmark. Finally, renewable energy development modes are studied. The distributed photovoltaic generation accounts for more than 95%, and distributed wind power generation installations account for over 85% in Germany. Solar and wind resources are developed with distributed development mode, in which distributed wind power installation accounts for over 75%. [ABSTRACT FROM AUTHOR]

The spatial patterns of soil total nitrogen and organic matter was investigated for the Shangsha shoal of Jiuduansha shoals in Yangtze Estuary. Soils had a distinctive seasonal variation in the content of total nitrogen and organic matter, and these changes could be separated into three phases. The soil concentrations of total nitrogen and organic matter were negatively correlated with depth with the surface layer being characteristically accessible, with higher nitrogen content and a wavy surface while the other three deeper layers contained root masses and lower contents of both total nitrogen and organic matter. As expected, the concentrations of soil total nitrogen and organic matter content were positively correlated. This study provides background information for programs involving the environmental protection of the Jiuduansha wetlands. [ABSTRACT FROM PUBLISHER]