关键词: 遗传多样性, 遗传多样性

Abstract: In order to make the spatial layout of indemnificatory housing more scientific and reasonable and the housing demands of low and medium income groups fully guaranteed, the research investigates the current ituation of independent indemnificatory housing in Hebei Province, selects two factors, including the distance to the city center and base land premium level, takes relative distance index and relative grade index separately to build the comparable bases in each city, applies AHP model, sets 3 level evaluation scale and makes quantitative evaluation on the locational advantages and disadvantages of indemnificatory housing in each city. Results demonstrate that the construction situation of indemnificatory housing in each city of Hebei Province is generally balanced, the address selections of indemnificatory housing of Zhangjiakou, Tangshan, Shijiazhuang are more reasonable than those in other cities. The authors deeply analyze the reasons why the land use distribution of indemnificatory housing in the current period is relatively ideal and recommend to optimize the construction of indemnificatory housing from law-making, living patterns, transition ideas, fruitful housing resources and other aspects.