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Agricultural input intensity increases significantly during the rapid urbanization in China, which has contributed to the increasingly serious non-point pollution. Using the vector autoregression (VAR) model, this study analyzes the impact of urbanization on pollution-related agricultural input intensity in Hubei, China. Results of an impulse response function analysis reveal that pesticide use intensity...
With the emergy balance law as theoretical support, the basic principle to guide synergetic utilization of agricultural land with the emergy balance law is expounded by defining the basic connotations of that theory, and emergy indexes of Chinese agricultural land system are established; the synergetic degrees of China's agricultural land system in the past 10 years are judged so as to form a new...
Based on methods of lanscape ecology and TM images of the Ebinur lake during the diffierent period, This paper studies the characteristics of landscape pattern, function and its variation. The ecological process, mechanism and intensity of variation influenced by the human activities and physical factors are analyzed in order to offer the countermeasure and references for restoring and reconstructing...
Taking Jiangxia District in Wuhan City as the research region by using RS and GIS comprehensively. According to the country secondary category and classification standard interpretation. Reveal the characteristics of the fractal structures of the distribution of land use types. Explore the significance of the fractal on land use types. The fractal dimensions (D) and stability indexes (S) of first...
This paper presents a model for simulating country-wide changes in the land use pattern of China. It is based upon an empirical analysis of the spatial distribution of land use types in China which takes into account socioeconomic as well as geophysical variables. The empirical analysis indicates that a reasonably complete description of the land use distribution can be made by including demographic,...
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