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第1期陕北黄土高原土地类型区域分异规律遥感分析··············,····,·……陈楚群等(l)陕北黄土丘陵地区土壤侵蚀强度遥感分析方法探讨···············……陈正宜等(9)TM资料水体识别技术的改进·····················
No. 1 Remote Sensing Analysis of Regional Variation of Land Types in the Loess Plateau in North Shaanxi ········································ ············ ···························· Chen Chuqun et al (1) Soil Erosion in the Loess Hilly Region of Northern Shaanxi Discussion on Intensity Remote Sensing Analysis ···································································································································································································································· Chen Zhengyi et al ····