Prof. Yuhuan Li Profile

Prof. Yuhuan Li

at Shandong Agricultural Univ

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Author

Publications (4)

Proceedings Article | 1 November 2005 Paper

Comprehensive evaluation of land quality basing on 3S technology and farmers’ survey: A case study in Crisscross Region of Wind-drift Sand Regions along the Great Wall and Loess Plateau

Yan-yu Zhang, Jing Wang, Yan-xi Shi, Yu-huan Li, Chun-yan Lv

Proceedings Volume 5983, 59831J (2005) https://doi.org/10.1117/12.627765

KEYWORDS: Vegetation, Remote sensing, Soil science, Geographic information systems, Agriculture, Volume rendering, Environmental hazards, Data modeling, Data integration, Information technology

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The Crisscross Region of Wind-drift Sand Regions along the Great Wall and Loess Plateau locates in southern Ordos Plateau and northern Chinese Loess Plateau, where wind erosion and water erosion coexist and specified environmental and socio-economic factors, especially human activities induce serious land degradation. However, there are only a few studies provide an overall assessment consequences. Integrated land quality assessment considering impacts of soil, topography, vegetation, environmental hazards, social-economic factors and land managements are imperative to the regional sustainable land managements. A pilot study was made in Hengshan County (Shanxi Province) with the objective of developing comprehensive land quality evaluation model integrating data from farmers' survey and Remote Sensing. Surveys were carried out in 107 households of study area in 2003 and 2004 to get farmers' perceptions of land quality and to collect correlative information. It was found out that farmers evaluated land quality by slope, water availability, soil texture, yields, amount of fertilizer, crop performance, sandy erosion degree and water erosion degree. Scientists' indicators which emphasize on getting information by RS technology were introduced to reflecting above indicators information for the sake of developing a rapid, efficient and local-fitted land quality assessment model including social-economic, environmental and anthropogenic factors. Data from satellite and surveys were integrated with socio-economic statistic data using geographical information system (GIS) and three indexes, namely Production Press Index (PPI), Land State Index (LSI) and Farmer Behavior Index (FBI) were proposed to measure different aspects of land quality. A model was further derived from the three indexes to explore the overall land quality of the study area. Results suggest that local land prevalently had a poor quality. This paper shows that whilst the model was competent for its work in the study area and evaluation results would supply beneficial information for management decisions.

Proceedings Article | 31 October 2005 Paper

Land use change and its effects on eco-environment in Bashang area of Hebei province

Chunyan Lv, Jing Wang, Yuhuan Li, Ting He

Proceedings Volume 5983, 59830J (2005) https://doi.org/10.1117/12.649854

KEYWORDS: Agriculture, Environmental monitoring, Environmental sensing, Landsat, Geographic information systems, Climatology, Statistical analysis, Statistical methods, Remote sensing, Earth observing sensors

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Proceedings Article | 26 October 2004 Paper

Separability of lab and indoor measured hyperspectral soil lines of soil from Loess Plateau of China

Yuhuan Li, Jing Wang, Jixian Zhang, Ting He

Proceedings Volume 5568, (2004) https://doi.org/10.1117/12.565489

KEYWORDS: Soil science, Principal component analysis, Chemical analysis, Iron, Relativity, Matrices, Agriculture, Computer simulations, Error analysis, Statistical analysis

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Proceedings Article | 22 October 2004 Paper

Change of land use in Beijing-around region

Jing Wang, Qing Zhou, Yuhuan Li, Ting He

Proceedings Volume 5574, (2004) https://doi.org/10.1117/12.566400

KEYWORDS: Forestry, Platinum, Remote sensing, Agriculture, Bismuth, Barium, Lithium, Scientific research, Environmental monitoring, Geographic information systems

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