1THE SPATIAL PATTERN CHARACTERISTICS OF SOIL NUTRIENTS AT THE FIELD SCALE

作者： Yang, Yujian; Zhu, Jianhua; Tong, Xueqin; Wang, Dianchang; SCI

机构： Shandong Acad Agr Sci, S&T Informat Engn Res Ctr, Jinan 250100, Shandong, Peoples R China;

来源：COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE II, VOL 1

关键词： soil nutrients spatial variability GIS precision agriculture

年份：2009

2The changes of land use and the temporal & spatial characteristics of salt-affected lands on the regional scale

作者： Yang, Yujian; Tong, Xueqin; Zhu, Jianhua; SCI

机构： Shandong Acad Agr Sci, S&T Informat Engn Res Ctr, Jinan 250100, Peoples R China;

来源：PROGRESS OF INFORMATION TECHNOLOGY IN AGRICULTURE

关键词： regional scale land use change spatial and temporal change salt-affected lands

年份：2007

3The spatial continuity study of NDVI based on Kriging and BPNN algorithm

作者： Yang, Yujian; Zhu, Jianhua; Liu, Shuyun; Tong, Xueqin; Zhao, Chunjiang; SCI

机构： Shandong Acad Agr Sci, S&T Informat & Engn Res Ctr, Jinan 250100, Peoples R China; Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China;

来源：MATHEMATICAL AND COMPUTER MODELLING

关键词： NDVI Back Propagation Neural Network Kriging Spatial continuity surface

4THE SPATIAL PATTERN CHARACTERISTICS OF SOIL NUTRIENTS AT THE FIELD SCALE

作者： Yang, Yujian; Zhu, Jianhua; Tong, Xueqin; Wang, Dianchang; SCI

机构： Shandong Acad Agr Sci, S&T Informat Engn Res Ctr, Jinan 250100, Shandong, Peoples R China;

来源：COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE II, VOL 1

关键词： soil nutrients; spatial variability; GIS; precision agriculture

年份：2009

5The changes of land use and the temporal & spatial characteristics of salt-affected lands on the regional scale

作者： Yang, Yujian; Tong, Xueqin; Zhu, Jianhua; SCI

机构： Shandong Acad Agr Sci, S&T Informat Engn Res Ctr, Jinan 250100, Peoples R China;

来源：PROGRESS OF INFORMATION TECHNOLOGY IN AGRICULTURE

关键词： regional scale; land use change; spatial and temporal change; salt-affected lands

年份：2007

6The spatial continuity study of NDVI based on Kriging and BPNN algorithm

作者： Yang, Yujian; Zhu, Jianhua; Liu, Shuyun; Tong, Xueqin; Zhao, Chunjiang; SCI

机构： Shandong Acad Agr Sci, S&T Informat & Engn Res Ctr, Jinan 250100, Peoples R China; Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China;

来源：MATHEMATICAL AND COMPUTER MODELLING

关键词： NDVI; Back Propagation Neural Network; Kriging; Spatial continuity surface

年份：2011