YUAN Baifei, MA Yutao, BAO Yan, et al. Effect of Rice Cultivation on Ameliorating Soil Fertility of Soda Saline-Alkali Soil in Western Jilin Province[J]. 2019, 33(3): 320-326.
DOI:
YUAN Baifei, MA Yutao, BAO Yan, et al. Effect of Rice Cultivation on Ameliorating Soil Fertility of Soda Saline-Alkali Soil in Western Jilin Province[J]. 2019, 33(3): 320-326. DOI: 10.13870/j.cnki.stbcxb.2019.03.047.
Effect of Rice Cultivation on Ameliorating Soil Fertility of Soda Saline-Alkali Soil in Western Jilin Province
The ameliorative effects of rice cultivation (5~30 years) on soda saline-alkali soil in western Jilin Province of northeast China were studied through field survey and laboratory analysis. The results showed that compared with the virgin soil before cultivating rice
the pH value and the contents of total salt
exchangeable sodium
alkalization degree
the contents of CO32-
HCO3-
Cl-
Ca2+
Na+ and silt plus clay (<0.053 mm) fractions of soil decreased significantly after rice planting
while the contents of SO42-
total organic carbon
water soluble organic carbon
humic acid carbon
fulvic acid carbon
alkali-hydrolyzable nitrogen and large aggregates (2~0.25 mm) in soil increased significantly. At the same time
the contents of alkyl carbon and alkoxycarbon in organic carbon increased whereas those of aromatic carbon and carbonyl carbon decreased in soil
resulting in an increase of the ratio of aliphatic carbon/aromatic carbon and a decrease of the ratios of alkyl carbon/alkoxycarbon and hydrophobic carbon/hydrophilic carbon. The above changes were usually more obvious with the extension of the rice planting years. The results indicated that rice planting could not only reduce soil alkalinity and salt content
but also increase the content and quality of soil organic carbon and improve soil structure. Therefore
rice planting was an effective way to ameliorate soda saline-alkali soil.
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Related Author
MA Yutao
YUAN Baifei
ZHANG Peng
WANG Yong
LI Cuilan
ZHANG Jinjing
DONG Yue
XIA Dong
Related Institution
College of Hydraulic & Environmental Engineering, China Three Gorges University
Hubei Provincial Engineering Research Center for Cement-based Ecological Restoration Technology, China Three Gorges University
College of Biological & Pharmaceutical Sciences, China Three Gorges University
Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences