Premium
Effects of Water Level and Salinity on TN and TP Contents in Marsh Soils of the Yellow River Delta, China
Author(s) -
Liu Peipei,
Bai Junhong,
Ding Qiuyi,
Shao Hongbo,
Gao Haifeng,
Xiao Rong
Publication year - 2012
Publication title -
clean – soil, air, water
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 66
eISSN - 1863-0669
pISSN - 1863-0650
DOI - 10.1002/clen.201200029
Subject(s) - salinity , soil water , soil salinity , delta , organic matter , nutrient , zoology , phosphorus , surface water , water level , water content , environmental science , hydrology (agriculture) , chemistry , soil science , geology , ecology , biology , environmental engineering , geography , cartography , geotechnical engineering , organic chemistry , engineering , aerospace engineering
A field experiment was carried out at three different water levels and four salinity levels to study the effects of water level and salinity on nutrient contents in mash soil of the Yellow River Delta, China. Contents of total nitrogen (TN) and total phosphorus (TP) in surface and subsurface soils were measured under different water and salinity levels during the study period. Results showed that TN contents gradually decreased with increasing salinities and the highest content appeared in surface soils in different sampling dates. Higher TN contents in August (361.55 mg/kg) and September (412.17 mg/kg) were observed under 0.52 and 16.7‰ salinity treatments, respectively, and 10 cm water level, and the highest value in October (504.81 mg/kg) was observed under 10.2‰ salinity treatment and 0 cm water level. TN contents showed significant differences among different water treatments. Similarly, TP content also appeared an accumulation in surface soils in each sampling date. However, significant differences of TP contents in subsurface soils were observed among three water levels. Salinity significantly influenced the changes in TN and TP contents in both soil layers under different water level treatments. Soil TN and TP contents were significantly correlated to soil organic matter.