Soil profile stratigraphy detected by ground penetrating radar in the modern Yellow River Delta

2020 ◽  
Author(s):  
Ping Wang ◽  
Xinju Li ◽  
Xiangyu Min ◽  
Shuo Xu
Keyword(s):  
Ground Penetrating Radar ◽  
Soil Profile ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Ground Penetrating ◽  
Modern Yellow River Delta

scholarly journals Soil organic carbon storage changes in coastal wetlands of the modern Yellow River Delta from 2000 to 2009

2012 ◽  
Vol 9 (2) ◽  
pp. 1759-1779 ◽  
Author(s):  
J. Yu ◽  
Y. Wang ◽  
Y. Li ◽  
H. Dong ◽  
D. Zhou ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Anthropogenic Activity ◽  
Regional Survey ◽  
Landscape Types ◽  
The Yrd ◽  
Modern Yellow River Delta

Abstract. Soil carbon sequestration plays an essential role in mitigating CO2 increases and the subsequently global greenhouse effect. The storages and dynamics of soil organic carbon (SOC) of 0–30 cm soil depth in different landscape types including beaches, reservoir and pond, reed wetland, forest wetland, bush wetland, farmland, building land, bare land (severe saline land) and salt field in the modern Yellow River Delta (YRD), were studied based on the data of the regional survey and laboratory analysis. The landscape types were classified by the interpretation of remote sensing images of 2000 and 2009, which was calibrated by field survey results. The results revealed an increase of 10.59 km2 in the modem YRD area from 2000 to 2009. The SOC density varied ranging from 0.73 kg m−2 to 21.60 kg m−2 at depth of 30 cm. There were ~3.97 × 106 t and 3.98 × 106 t SOC stored in the YRD in 2000 and 2009, respectively. The SOC storages changed greatly in beaches, bush wetland, farm land and salt field which were affected dominantly by anthropogenic activities. The area of the YRD increased greatly within 10 yr, however, the small increase of SOC storage in the region was observed due to landscape changes, indicating that the modern YRD was a potential carbon sink and anthropogenic activity was a key factor for SOC change.

Study on Microbial Community Characteristics in the Northern Wetland Reserve Area of the Modern Yellow River Delta

2013 ◽  
Vol 726-731 ◽  
pp. 463-469
Author(s):  
Guang Ming Zhao ◽  
Si Yuan Ye ◽  
Yuan Zheng Xin ◽  
Xi Gui Ding ◽  
Hong Ming Yuan ◽  
...  
Keyword(s):  
Microbial Community ◽  
Coastal Wetland ◽  
Yellow River ◽  
Salt Content ◽  
Yellow River Delta ◽  
River Delta ◽  
Community Characteristics ◽  
Different Depths ◽  
Negative Linear Relationship ◽  
Modern Yellow River Delta

Yellow River Delta has a special status of coastal wetland research in China. The microbial community characteristics such as community structure, activity and size in the wetland were investigated in the modern Yellow River Delta of Shandong Province. The aim was to find the effect of salinity on the microbial community. There was a significant negative linear relationship between soluble salt content and the total number of microbes, overall microbial activity, and diversity of culturally viable microbes. Differences of the soil bacterial community in different depths were monitored using the terminal restriction fragment length polymorphism (T-RFLP) and clone library analyses. In a word, these results indicate that higher salinity and deeper depth resulted in a smaller, more stressed microbial community which was less active and diverse .

scholarly journals Formation of Plant Communities of the Newly Created Wetland in Modern Yellow River Delta

2010 ◽  
Vol 2 ◽  
pp. 333-339 ◽  
Author(s):  
Jun Xiang ◽  
Qingfang Wang ◽  
Geng Wu ◽  
Yongquan Wu ◽  
Peng Han ◽  
...  
Keyword(s):  
Plant Communities ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Created Wetland ◽  
Modern Yellow River Delta

Study on Spatio-Temporal Changes of Wetland Landscape Patterns in the Modern Yellow River Delta

2014 ◽  
Vol 955-959 ◽  
pp. 1346-1350 ◽  
Author(s):  
Jun Chang ◽  
Wei Liu ◽  
Tao Li
Keyword(s):  
Driving Forces ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Landscape Patterns ◽  
Combination Method ◽  
Landscape Index ◽  
Natural Wetlands ◽  
Spatio Temporal ◽  
Modern Yellow River Delta

The wetland distribution in the modern Yellow River Delta is extracted by using a combination method of supervised classification based on the Landsat TM images in 1991, 2001 and 2011. The changes of wetland were analyzed from landscape index in the paper. The result shows that the area of natural wetland degrades, while the area of artificial wetland increases from 1991 to 2011. The transfer trajectory of spatial centroids of the wetland shows that it shifts towards southeast. Man-made driving forces are the main factors that cause natural wetlands degrades.

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