Yinkang Zhou

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Scientific interpretation of the mechanism of land use change is important for government planning and management activities. This study analyzes the land use change in Jiangsu Province using three land use maps of 2000, 2005 and 2008. The study results show that there was a significant change in land use. The change was mainly characterized by a continuous(More)
A 15N dilution experiment was carried out to investigate effects of cultivation on the gross N transformation rate in coastal wetland zone. Microbial community composition was estimated by phospholipid fatty acid (PLFA) analysis and abundance of soil ammonia-oxidizing bacteria (AOB) was quantified by real-time polymerase chain reaction (PCR). Soil salinity(More)
The abandonment of cultivated wetland soil increased the contents of light fraction organic matter (LFOM), heavy fraction organic matter (HFOM) and soil organic matter (SOM). The LFOM and HFOM content increased to 13.3 g kg−1 and 62.4 g kg−1 after 5 years whereas they were 8.4 and 47.9 g kg−1 after 9 years of cropping, respectively. Fourteen years after(More)
China’s recent rapid economic development has resulted in rampant urbanization and substantial farmland reduction, which makes food security a great policy concern, not only in China, but around the world. The Chinese government has been implementing large-scale land consolidation programs since 1998 in order to stabilize and improve the quantity and(More)
China is presently undergoing rapid economic development and unprecedented urbanization. Concerns over food security have prompted the Chinese government to implement large-scale land consolidation projects. However, no formal evaluation has been conducted on such projects. Thus, effectiveness of land consolidation policy remains uncertain. We obtained(More)
By linking DEA model to GIS technologies, this paper makes an empirical analysis about food production efficiency of 138 counties in Hebei Province from three aspects: total factor efficiency, technical efficiency and technological progress efficiency. The result shows that :1) The food production efficiency in Hebei Province grows rapidly during this(More)