scholarly journals Distribution of carbon, nitrogen and phosphorus in coastal wetland soil related land use in the Modern Yellow River Delta

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Junbao Yu ◽  
Chao Zhan ◽  
Yunzhao Li ◽  
Di Zhou ◽  
Yuqin Fu ◽  
...  
Keyword(s):  
Land Use ◽  
Coastal Wetland ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Wetland Soil ◽  
Nitrogen And Phosphorus ◽  
Modern Yellow River Delta

scholarly journals Effects of biochar on nitrogen and phosphorus retention in the coastal wetland soil of the Yellow River Delta, China

2021 ◽  
Vol 251 ◽  
pp. 02028
Author(s):  
Jing Miao ◽  
Xiaotong Li ◽  
Xiao Wang
Keyword(s):  
Coastal Wetland ◽  
Yellow River ◽  
Nutrient Deficiency ◽  
Carbonaceous Material ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Wetland Soil ◽  
Nitrogen And Phosphorus ◽  
The Yellow River Delta

Nutrient deficiency (nitrogen, phosphorus) strongly limited the productivity of the degraded coastal soils in the Yellow River Delta. Biochar (BC) is a kind of porous carbonaceous material. It has raised wide interests because of their multiple benefits in soil improvement. The effects of biochar on the retention of nitrogen and phosphorus varied with the types of biochar and soil properties. In this study, a maize straw derived BC was applied into a coastal salt-affected soil collected from the Yellow River Delta to investigate the response of soil nutrient using a three-month cultivating experiment with the simulated rainfall. The results showed that the addition of biochar reduced the content of NH4+-N and NO3--N in all-depth soil by 8.1–27.0% and 25.3–51.9%, respectively. The content of TP in 0-30 cm soil was significantly increased, while it had no significant effect on the content of TP in 30-60 cm soil. These findings would provide theoretical basis and technical support for developing feasible technologies for remediating degraded coastal wetland soil.

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 Biochar addition reduced net N mineralization of a coastal wetland soil in the Yellow River Delta, China

Geoderma ◽  
2016 ◽  
Vol 282 ◽  
pp. 120-128 ◽  
Author(s):  
Xianxiang Luo ◽  
Lei Chen ◽  
Hao Zheng ◽  
Jingjing Chang ◽  
Hefang Wang ◽  
...  
Keyword(s):  
N Mineralization ◽  
Coastal Wetland ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Wetland Soil ◽  
Net N Mineralization ◽  
The Yellow River Delta

Properties of saline-alkaline soil under different land use types in Yellow River Delta

2009 ◽  
Vol 17 (6) ◽  
pp. 1132-1136
Author(s):  
Qing-Mei LI ◽  
Long-Yu HOU ◽  
Yan LIU ◽  
Feng-Yun MA
Keyword(s):  
Land Use ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
Alkaline Soil ◽  
Land Use Types

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.

Spatial Variability of Nitrogen and Phosphorus in Wetland Soils of the Yellow River Delta, China

2012 ◽  
Vol 610-613 ◽  
pp. 1028-1032
Author(s):  
Chen Huang ◽  
Jun Hong Bai ◽  
Jun Jing Wang ◽  
Qiong Qiong Lu ◽  
Qing Qing Zhao ◽  
...  
Keyword(s):  
Spatial Variability ◽  
Soil Nitrogen ◽  
Yellow River ◽  
Yellow River Delta ◽  
River Delta ◽  
The Yellow River ◽  
Model Parameters ◽  
Wetland Soils ◽  
Nitrogen And Phosphorus ◽  
The Yellow River Delta

Spatial variability of soil nitrogen and phosphorus in the Yellow River Delta was investigated using geostatistical method. Our results showed moderate variation in TN and TP and high variations in NH4+-N and AP. The best semi-variogram model for each nutrient was identified. The model parameters suggested that the structure variance dominated the total variance of TN, TP and NH4+-N, while the spatial variability of AP was relatively random. The spatial variation scales of soil nitrogen and phosphorus are similar.

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