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This paper reviews the Chinese Quaternary biogeographic record, which has traditionally been divided into the Palearctic (North China) and Oriental (South China) biozones. Notable findings are: (1) Open-steppe taxa (e.g., Equus sanmeniensis, E. yunnanensis, E. hemonius, Mammuthus) are found in the Oriental region during the Early and Late Pleistocene; (2) Beremendia is found in large numbers at the...
Given that the urban area is a complex ecosystem consisted of natural, societal and economic entities, urban ecosystem health evaluation is necessary for the scientific decision-making and proper ecological restoration. In this paper, the framework and methodology of urban ecosystem health evaluation based on emergy are proposed. The system of indices is developed including vigor, structure, resilience,...
Correct evaluation water resources sustainability of a city or an area is one of the most important way to understand the development potential of it. The paper introduced the concept of social adaptive ability, established a social index system and evaluation method of water resources scarcity, and took Tianjin as a case to evaluate water resources sustainability of it from 1998 to 2006. The results...
The first step of total water pollutants control is regional allocation. It is a key problem to settle water pollutants regional allocation on the principle of equity. According to different principles of equity, the indexes were chose to reflect these principles based on economic and nature environmental factors. The information entropy was used for reference. Entropy method was used to get weight...
The radiation of the 4th channel data of AVHRR used was adjusted. After that, the luminance temperature which is equivalent radiation is acquired through computation. According to a majority of researchers' procedure, the difference of luminance temperature between urban and suburb was used to stand for Heat Island temperature and expressed by centigrade temperature. We summed up twelve cities' square...
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