Abstract:

Land intensive use is an important component of constructing a resource conserving and environment friendly society. Changsha city as one of two-oriented society best practices, it is a mandatory requirement to evaluate its efficency and opitimize its path of land intensive use. The technology of data envelopment analysis (DEA) is employed to determine a land intensive use performance and project analysis is used to locate the deficient factors of input or output. It is shown that the land intensive use relative efficiency diversifies during 1991-2008: (1) the 2002, 2007 and 2008 are categories as DEA efficiency, 1991, 1994, 1995, 1997, 1999 and 2000 are listed as weakly DEA efficiency, 1992, 1993, 1996, 1998, 2001, 2003, 2004, 2005 and 2006 are assorted as non-DEA efficiency; (2) the deficient factors of land use varies in amplitude, which can be ranked as follows from high degree to low: labor input, land resources comsumption and capital input. The results indicate that land intensive use is a dynamic procedure, relative efficient evaluation can be used to distinguish land intensive use level. The DEA model and projection analysis provide a scientific reference for land use decision-makers, and it is convenient for decision-makers to get more satisfied land intensive use path by adjusting the index system of input and output.