|Table of Contents|

Analysis of Soil Salinity Characteristics in Salinized Areas of Northern Minghua Township in the Middle Reaches of Heihe River

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年21
Page:
71-79
Research Field:
Publishing date:

Info

Title:
Analysis of Soil Salinity Characteristics in Salinized Areas of Northern Minghua Township in the Middle Reaches of Heihe River
Author(s):
GAO Zongjun1; REN Xiaohui1; AN Yonghui2; WU Xi2; HE Minghao1; LIU Jiutan1
(1.College of Earth Science and Engineering，Shandong University of Science and Technology，Qingdao，Shandong 266590；2.Center for Hydrogeology and Environmental Geology Survey，China Geological Survey，Baoding，Hebei 071051)
Keywords:
salinization; soil salinity; principal components analysis; Minghua township; middle reaches of Heihe river
PACS:
-
DOI:
10.11937/bfyy.20194716
Abstract:
In order to find out the salt composition of the soil and characteristics of soluble salt ions in the salinization area in the north of Minghua township，the middle reaches of Heihe river.Through field investigation，sampling and laboratory analysis，the total salinity，pH and contents of eight major ions (CO2-3，HCO-3，Cl-，SO2-4，Ca2+，Mg2+，K++Na+) in soil at different sampling depths were analyzed by mathematical statistics，correlation analysis and principal component analysis.The results showed that the soil salinization in the study area was serious and belonged to saline soil.The salt content showed surface aggregation characteristics.pH of the soil was between 8.56 and 9.64，which belonged to strong alkaline soil.pH increased with the increase of soil depth.The cations in the soil were mainly K++Na+，and the anions were mainly Cl- and SO2-4.The total salt content in each soil layer was always significantly positively correlated with K++Na+，Cl-，SO2-4.The main components of soil salt were chloride and sulfate.As the soil depth increases，the content of chloride in the total salt content decreased continuously，while the content of sulfate in the total salt content increased gradually.The total salt content，K++Na+，Cl-，SO2-4 was the characteristic factor for characterizing soil salinization in the study area.

References:

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Last Update: 2021-01-21