Geospatial-temporal analysis of land-use changes in the Yellow River Delta during the last 40 years

2004 ◽  
Vol 47 (11) ◽  
pp. 1008 ◽  
Author(s):  
Qinghua YE
Keyword(s):  
Land Use ◽  
Yellow River ◽  
Land Use Changes ◽  
Yellow River Delta ◽  
Temporal Analysis ◽  
River Delta ◽  
The Yellow River ◽  
The Yellow River Delta

scholarly journals STUDY ON REMOTE SENSING IMAGE CHARACTERISTICS OF ECOLOGICAL LAND: CASE STUDY OF ORIGINAL ECOLOGICAL LAND IN THE YELLOW RIVER DELTA

2018 ◽  
Vol XLII-3 ◽  
pp. 35-38
Author(s):  
G. Q. An
Keyword(s):  
Remote Sensing ◽  
Land Use ◽  
Vegetation Index ◽  
Yellow River ◽  
Spectral Characteristics ◽  
Texture Features ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
The Yellow River Delta

Takes the Yellow River Delta as an example, this paper studies the characteristics of remote sensing imagery with dominant ecological functional land use types, compares the advantages and disadvantages of different image in interpreting ecological land use, and uses research results to analyse the changing trend of ecological land in the study area in the past 30 years. The main methods include multi-period, different sensor images and different seasonal spectral curves, vegetation index, GIS and data analysis methods. The results show that the main ecological land in the Yellow River Delta included coastal beaches, saline-alkaline lands, and water bodies. These lands have relatively distinct spectral and texture features. The spectral features along the beach show characteristics of absorption in the green band and reflection in the red band. This feature is less affected by the acquisition year, season, and sensor type. Saline-alkali land due to the influence of some saline-alkaline-tolerant plants such as alkali tent, Tamarix and other vegetation, the spectral characteristics have a certain seasonal changes, winter and spring NDVI index is less than the summer and autumn vegetation index. The spectral characteristics of a water body generally decrease rapidly with increasing wavelength, and the reflectance in the red band increases with increasing sediment concentration. In conclusion, according to the spectral characteristics and image texture features of the ecological land in the Yellow River Delta, the accuracy of image interpretation of such ecological land can be improved.

Effect of different land-use patterns on the physical characteristics of the soil in the Yellow River delta region

2015 ◽  
Vol 35 (15) ◽  
Author(s):  
刘艳丽 LIU Yanli ◽  
李成亮 LI Chengliang ◽  
高明秀 GAO Mingxiu ◽  
张民 ZHANG Min ◽  
赵庚星 ZHAO Gengxing
Keyword(s):  
Land Use ◽  
Yellow River ◽  
Yellow River Delta ◽  
Physical Characteristics ◽  
River Delta ◽  
The Yellow River ◽  
Delta Region ◽  
Land Use Patterns ◽  
The Yellow River Delta ◽  
Use Patterns
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