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Select the Ejina oasis research object article using RS and statistical techniques, and the use of the 2000 and 2007 Landsat TM / ETM two remote sensing images as background data, interpreted two Ejina Oasis landscape type maps; obtained by calculating landscape pattern refers to the number as well as the transition matrix to reflect the dynamic changes in the landscape types, analysis of the study area in the the Heihe watershed project started seven years landscape pattern characteristics and landscape dynamic changes; and principal component analysis and comprehensive analysis of the impact of landscape pattern change drive factor, aims to restore the oasis vegetation data base, and spatial decision-making basis. The landscape dynamic analysis: woodland, shrub land in coverage grassland and low coverage grassland, difficult to use land and bare land for the roll-out type, farmland, open woodland, canals, towns, and saline land is transferred to the type. Main steering: shrub land, open woodland, grassland the woodland major turning; shrub land turned to grassland, arable land, saline land; moderate coverage grass turned to arable land, high coverage grassland; low coverage grassland turned to saline-alkali soil; difficult to use the land turned to the town; bare land mainly turned to canals, arable land, grassland, shrub land. Landscape pattern analysis: seven years, the increased LANDSCAPE fragmentation and landscape pattern tends to be simple, there is a high diversity of landscape types, but by the impact of fragmentation makes the landscape tends to be homogeneous. Arable land and the number of patches increased, showing a trend of fragmentation in the oasis landscape. Woodland, shrub land area decreased, the increase in the number of patch broken distribution in the oasis landscape; open woodland area increased due to the degradation of forest land; the grassland landscape due to the environmental impact is extremely prone to shift, with a very high degree of dynamic crushing distribution landscape. Canals, and the increase in the area of ??urban landscape, social development and economic needs of the construction; in difficult to make use of unused land and bare land area is reduced, while the saline-alkali soil toward the expansion of woodland and grassland landscape. Principal component analysis factor analysis of 15 individuals, ultimately exclude the total population and the runoff. That the rest of the per capita GDP, the total power of agricultural machinery, the amount of chemical fertilizer, the primary industry, and local revenues, local fiscal expenditure, farmers and herdsmen per capita net income of urban residents per capita disposable income, the end of the year total number of livestock, all industrial output value, total retail sales of social consumer goods, total fixed asset investment, the construction industry output value 13 is the dominant factor of the oasis landscape changes, and is divided into four factors of socio-economic factors, policy factors, technical factors, cultural factors be Analysis.
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