nature preservation
2.Aiming at the scientific, effective and comprehensive management of marine areas, from 1989 to 1995 a total of 3,663 marine zones have been divided into different functional types by the relevant departments of the central and coastal area governments, encompassing development and utilization zones, control and protection zones, nature preservation zones, special function zones and reserved zones. 
3.Henry David Thoreau was a famous American nature writer and preservation thinker of the 19~(th) century.
7.He believes that the few nature areas in Singapore should be kept for our children and has been campaigning for the preservation of Chek Jawa.
8.Through the study of the close link between Jeffersonian republicanism and the ward system, the present thesis concludes that the nature of Jefferson’s conception of the ward system is the institutional preservation of Jeffersonian republicanism.
9.Developed for over twenty years, Jiujiang possesses more than 120 scenic areas that consist of one state-level scenic and historic interest area, two national nature reserves, six national forest parks, four state-level major cultural relic preservation sites, and three national key protective temples.
10.The nature of agrodiversity, its influencing factors and the role of agrodiversity in agro-ecosystem health are stated, indicating that agrobiodiversity protection needs not only the preservation of biological integrity and diversity, but also agroecosystem health and managements.
