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[期刊论文] 作者：KUANG Wenhui,YAN Fengqin,
来源：黑龙江科技学院学报 年份：2018
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者：YAN Fengqin,LIU Xingtu,CHEN Ji,
来源：中国地理科学：英文版 年份：2017
沼泽地数据库能提供基本数据那为沼泽地的保护和管理必要。很多沼泽地数据库在世界上以及在中国被建立了。在这份报纸，我们基于在在沼泽地把背景理论介绍给 RS 技术的申请以后......
Assessment of High-standard Farmland Construction Effectiveness in Liaoning Province During 2011–201
[期刊论文] 作者：PU Luoman,ZHANG Shuwen,YANG Jiuchun,YAN Fengqin,CHANG Liping,,
来源：Chinese Geographical Science 年份：2019
At present, the large-scale construction of high-standard farmland in China has improved the quality of cropland and crop production and enhanced the eco-environmental security. To obtain a comprehens...
[期刊论文] 作者：YAN Fengqin,LIU Xingtu,CHEN Jing,YU Lingxue,YANG Chaobin,CHANG Liping,YANG Jiuchun,ZHANG Shuwen,,
来源：Chinese Geographical Science 年份：2017
Wetland databases can provide the basic data that necessary for the protection and management of wetlands. A large number of wetland databases have been established in the world as well as in China. I...
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