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From the point of view of geobotany, with the method of correlative factors of growth of plants, a countrywide theoretic ecological division was done for the introduction of Camptotheca acuminata and three kinds of areas of ecological preferent zone, ecological adaptive zone and ecological unadaptable zone were divided. With the theory of synecology, the characteristic on environment, constitution, life form spectrum, diversity, similarity of plots of communities were researched. Applying the method of species association, discrete distribution, indensity index, fractal geometry, etc. to research relations between the species of the communities, space distribution of Camptotheca acuminata, structure of age of Camptotheca acuminata, in different communities. Using the theories of autoecology, distibutons of seeds on land and growth of seedlings in vertical and horizontal directions, biomass of organ of Camptotheca acuminata were analyzed. On the opinions of conservation biology, the external and internal factors impressing Camptotheca acuminata were analyzed to research the mechanism of the endangered species, and with using of CTM Model, the future development direction of Camptotheca acuminata in different communities were forecasted, and. Standing on the position of resources ecology, discussing the regularity of camptothein in Camptotheca acuminata of different sites and seeding of different resources, also the the derive technics of camptothecin.

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The main study areas are as follows: 1 The landscape classification system of the urban-rural ecotone is set up based on the studying on land-use type of urban area and rural area, and then it is used to establish a regional landscape data warehouse for deposition, modification and management; 2 A group of landscape structure and pattern indices and patch area spectrum analysis methods are used to describe the structural and heterogeneous characters of all the landscape elements from different aspects; 3 The temporal and spatial difference of the landscape pattern of main road belts of the research area are also analyzed with the same method. Their basic process and regularity of urban axial expanding of the southwestward of Shanghai City are initially knewn well; 4 According to the traits of the ecotone, the principles and basis of vegetation classification, the ecotone vegetation classification system is set up, its species constitute, community patch characters, the relationship between vegetation types and landscape categories are analyzed, meanwhile, the vegetation sample maps are made; 5 Based on above studies, some landscape ecological stratedies within the research area were discussed. The following are the results of this study

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It is basic for the land banking plan to formulate control scale based on land utilization economically.

基于集約利用的土地儲(chǔ)備控制規(guī)模的確定是土地儲(chǔ)備規(guī)劃和土地儲(chǔ)備年度計(jì)劃制定的基礎(chǔ)。

Based on land use data of 1985 and 2000 in Hetao Irrigation District, land use change and landscape pattern change were analyzed.

：利用1985年和2000年的土地利用數(shù)據(jù)黄视频色网站，對(duì)內(nèi)蒙古河套灌區(qū)的土地利用變化及景觀格局變化進(jìn)行了研究最新最近中文字幕视频。

Thoreau embarked on a two-year experiment in simple living on July 4, 1845 when he moved to a second-growth forest around the shores of beautiful Walden Pond and lived in a self-built house on land owned by Emerson.

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George's Anglican Church and Van Diemen's Land Folk Museum, a Georgian building on landscaped grounds.

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Columbus and a crew of eighty-eight men left Spain on August third, Fourteen-Ninety-Two in three ships. On October Twelfth, they stood on land again on an island that Columbus named San Salvador.

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