scholarly journals The Spatial and Temporal Variation Characteristics of CH<sub>4</sub> and CO<sub>2</sub> Emission Flux under Different Land Use Types in the Yellow River Delta Wetland

2015 ◽  
Vol 03 (06) ◽  
pp. 26-32 ◽  
Author(s):  
Qingfeng Chen ◽  
Junjian Ma ◽  
Changsheng Zhao ◽  
Rongbin Li
Keyword(s):  
Land Use ◽  
Yellow River ◽  
Yellow River Delta ◽  
Spatial And Temporal Variation ◽  
The Yellow River ◽  
Emission Flux ◽  
The Yellow River Delta ◽  
Land Use Types ◽  
Variation Characteristics ◽  
Yellow River Delta Wetland

Nitrate-Nitrogen Transport in Horizontal Soil Columns of the Yellow River Delta Wetland, China

2012 ◽  
Vol 40 (10) ◽  
pp. 1106-1110 ◽  
Author(s):  
Junhong Bai ◽  
Xiaofei Ye ◽  
Yuan Zhi ◽  
Haifeng Gao ◽  
Laibin Huang ◽  
...  
Keyword(s):  
Nitrate Nitrogen ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Nitrogen Transport ◽  
Soil Columns ◽  
The Yellow River Delta ◽  
Yellow River Delta Wetland

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.

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