Dehai Zhu
Biographic Data
| ID | 6314516 |
|---|---|
| NAME | Dehai Zhu |
| GIVEN NAMES | Dehai |
| FAMILY NAME | Zhu |
| SIGNATURE | ZHU D |
| AFFILIATIONS | Ministry of Natural Resources |
| VERIFIED | No |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 25 |
| AUTHOR COUNT | 6 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2020 |
| LATEST PUBLICATION YEAR | 2024 |
| H-INDEX | 2 |
Spatial pattern of cultivated land fragmentation in mainland China: Characteristics, dominant factors, and countermeasures
Systematically recognizing spatial patterns and driving factors of cultivated land fragmentation is of great significance for the exploration of locally appropriate path to relieve cultivated land fragmentation. This study aims to estimate cultivated land density, mean patch size and area-weighted mean shape index to respectively indicate the characteristics of cultivated land fragmentation from three dimensions, namely, natural resource endowmen…
HexTile: A Hexagonal DGGS-Based Map Tile Algorithm for Visualizing Big Remote Sensing Data in Spark
The advent of the era of big remote sensing data has transformed traditional data management and analysis models, among which visualization analysis has gradually become an effective method, and map tiles for remote sensing data have always played an important role. However, in high-latitude regions, especially in polar regions, the deformation caused by map projection still exists, which lowers the accuracy of global or large-scale visual analys…
A Quantitative Analysis of Factors Influencing Organic Matter Concentration in the Topsoil of Black Soil in Northeast China Based on Spatial Heterogeneous Patterns
Black soil is fertile, abundant with organic matter (OM) and is exceptional for farming. The black soil zone in northeast China is the third-largest black soil zone globally and produces a quarter of China’s commodity grain. However, the soil organic matter (SOM) in this zone is declining, and the quality of cultivated land is falling off rapidly due to overexploitation and unsustainable management practices. To help develop an integrated protect…
Evaluating Responses of Temperature Regulating Service to Landscape Pattern Based on ‘Source-Sink’ Theory
Thermal remote sensing provides a method to describe spatial heterogeneity of the “urban heat island” effect and to evaluate the function of temperature regulation. Rapid urbanization and heatwave events with increasing frequencies need a quantitative analysis on the supply and demand for an urban temperature regulating service, which is a gap in urban heat island (UHI) studies in rapidly urbanizing cities. In order to study the quantitative rela…
An Efficient Row Key Encoding Method with Ascii Code for Storing Geospatial Big Data in HBase
Recently, increasing amounts of multi-source geospatial data (raster data of satellites and textual data of meteorological stations) have been generated, which can play a cooperative and important role in many research works. Efficiently storing, organizing and managing these data is essential for their subsequent application. HBase, as a distributed storage database, is increasingly popular for the storage of unstructured data. The design of the…
Spatial pattern of arable land-use intensity in China
Spatial pattern of arable land-use intensity in China
Spatial pattern of cultivated land fragmentation in mainland China: Characteristics, dominant factors, and countermeasures
Systematically recognizing spatial patterns and driving factors of cultivated land fragmentation is of great significance for the exploration of locally appropriate path to relieve cultivated land fragmentation. This study aims to estimate cultivated land density, mean patch size and area-weighted mean shape index to respectively indicate the characteristics of cultivated land fragmentation from three dimensions, namely, natural resource endowmen…
Evaluating Responses of Temperature Regulating Service to Landscape Pattern Based on ‘Source-Sink’ Theory
Thermal remote sensing provides a method to describe spatial heterogeneity of the “urban heat island” effect and to evaluate the function of temperature regulation. Rapid urbanization and heatwave events with increasing frequencies need a quantitative analysis on the supply and demand for an urban temperature regulating service, which is a gap in urban heat island (UHI) studies in rapidly urbanizing cities. In order to study the quantitative rela…
An Efficient Row Key Encoding Method with Ascii Code for Storing Geospatial Big Data in HBase
Recently, increasing amounts of multi-source geospatial data (raster data of satellites and textual data of meteorological stations) have been generated, which can play a cooperative and important role in many research works. Efficiently storing, organizing and managing these data is essential for their subsequent application. HBase, as a distributed storage database, is increasingly popular for the storage of unstructured data. The design of the…
Spatial pattern of arable land-use intensity in China
A Quantitative Analysis of Factors Influencing Organic Matter Concentration in the Topsoil of Black Soil in Northeast China Based on Spatial Heterogeneous Patterns
Black soil is fertile, abundant with organic matter (OM) and is exceptional for farming. The black soil zone in northeast China is the third-largest black soil zone globally and produces a quarter of China’s commodity grain. However, the soil organic matter (SOM) in this zone is declining, and the quality of cultivated land is falling off rapidly due to overexploitation and unsustainable management practices. To help develop an integrated protect…
HexTile: A Hexagonal DGGS-Based Map Tile Algorithm for Visualizing Big Remote Sensing Data in Spark
The advent of the era of big remote sensing data has transformed traditional data management and analysis models, among which visualization analysis has gradually become an effective method, and map tiles for remote sensing data have always played an important role. However, in high-latitude regions, especially in polar regions, the deformation caused by map projection still exists, which lowers the accuracy of global or large-scale visual analys…
Spatial pattern of cultivated land fragmentation in mainland China: Characteristics, dominant factors, and countermeasures
Systematically recognizing spatial patterns and driving factors of cultivated land fragmentation is of great significance for the exploration of locally appropriate path to relieve cultivated land fragmentation. This study aims to estimate cultivated land density, mean patch size and area-weighted mean shape index to respectively indicate the characteristics of cultivated land fragmentation from three dimensions, namely, natural resource endowmen…
Land Use and Ecosystem Services (5 works) · Geography (4 works) · Computer Science (3 works) · Environmental Science (3 works) · Agriculture (2 works) · China (2 works) · Data Management and Algorithms (2 works) · Data mining (2 works) · Database (2 works) · Distributed computing (2 works)