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Abstract A field survey was conducted in a contaminated industrial site of southern Beijing, China to investigate the contents and distribution of the organochlorine pesticides (alpha-, beta-, gamma-, delta-HCH, p,p'-DDT, p,p'-DDE, p,p'-DDD and o,p'-DDT) in the profiles of soil, and a health risk assessment was carried out with CalTOX multimedia exposure(More)
Eco-construction refers to the application of ecological principles to the development of human ecosystems in order to achieve sustainability. It consists of three components: ecological engineering, ecological institutional reestablishment and ecological cultural remolding. Since 1980, a vigorous campaign for demonstrating eco-construction has appeared in(More)
Based on the calculation of actual yield per unit area in 2002, this paper analyzed the ecological footprint and its composition of each province in China. The results showed that there was a significant difference in the ecological footprint and its composition among different provinces, e. g., cropland changed from 0. 078 hm2 x cap(-1) in Shaanxi to 0.126(More)
Markov chain has been widely applied in the study of land use and landscape changes, but its statistical properties were less tested. Based on the land use change data monitored in Beijing, and with Pearson chi-squared goodness-of-fit test, this paper examined the time stability and time independence of Markov chain of land use change. The results indicated(More)
By the methods of systematic ecology, and that of Simpson's biodiversity indices in particular, this paper quantitatively analyzed the ecological effects of ten years land use changes in a small town with rapid rural urbanization of Shaoxing County, Zhejiang Province, aimed to provide a scientific basis for healthy development of towns and small cities in(More)