Assessment of urban ecosystem health in experimental units of water cco 2civilization construction in Henan
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Abstract:
On the basis of summarizing the attributes of urban ecosystem and analyzing its content of health, an evaluation indica 2 tor system was established using the frequency statistics. A fuzzy matter model was then developed using the Hamming ap2 proach degree to estimate the urban ecosystem health in Zhengzhou, Luoyang, and Xuchang (the first batch of the experimental units of water eco 2civilization construction in Henan Province) from 2000 to 2013 and analyze the impact factors of urban eco2 system health. The results showed that (1) the level of urban ecosystem health in Zhengzhou, Luoyang, and Xuchang is impro2 ving slightly, but some indexes tend towards worse; (2) the level of urban ecosystem health from high to low is Zhengzhou, Luoyang, and Xuchang, but the improving rate in Xuchang is the highest while the lowest in Zhengzhou; and ( 3) the health de 2 gree differs in different cities and the harmony between each index is low. Consequently, we should focus on the development of indexes with low health degree, improve the harmony between each index, and increase the health level of urban ecosystem.
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