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LIJianping ZHANGBai GAOFeng 《地球空间信息科学学报》2005,8(2):104-109
By taking Daan city in Jilin Province as a research object and by using TM image in 1989 and ETM- image in 2001 from American LANDSAT satellite, all kinds of maps and documentation, information of grassland, saline-alkalized land, cropland, water area and forestland is extracted by man-computer interactive interpretation method with ArcView and Arclnfo GIS software, and statistics data is acquired. On the basis of this the changing trend of land use types in the next ten years is forecasted and analyzed with Markov model. The results indicate that the problem of grassland degradation in the study area is quite serious. 相似文献
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正中国建筑工业出版社将笔者20余年刻苦学习品读《徐霞客游记》(下面简称《游记》)的丰硕成果,于2014年6月出版了。6月17日拿到样书,爱不释手;连夜又从头到尾读了一遍,直到东方露出了霞光。心情正如徐霞客先生《游记》开篇之作的一句话:人意山光,俱有喜态。迎着初升灿烂的霞光,啊!新的一天又开始了,新的生活又开始了!啊!新,创新是一切事业的生命线,也是这本书追求的目标。笔者把本书的创新之处写在下面,和读者共享、交流。 相似文献
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