Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1371/journal.pone.0106079 |
The Occurrence, Sources and Spatial Characteristics of Soil Salt and Assessment of Soil Salinization Risk in Yanqi Basin, Northwest China | |
Zhang Zhaoyong1,2; Abuduwaili, Jilili1; Yimit, Hamid3 | |
通讯作者 | Abuduwaili, Jilili |
来源期刊 | PLOS ONE |
ISSN | 1932-6203 |
出版年 | 2014 |
卷号 | 9期号:9 |
英文摘要 | In order to evaluate the soil salinization risk of the oases in arid land of northwest China, we chose a typical oasis-the Yanqi basin as the research area. Then, we collected soil samples from the area and made comprehensive assessment for soil salinization risk in this area. The result showed that: (1) In all soil samples, high variation was found for the amount of Ca2+ and K+, while the other soil salt properties had moderate levels of variation. (2) The land use types and the soil parent material had a significant influence on the amount of salt ions within the soil. (3) Principle component (PC) analysis determined that all the salt ion values, potential of hydrogen (pHs) and ECs fell into four PCs. Among them, PC1 (C1(-), Na+, SO42-, EC, and pH) and PC2 (Ca2+, K+, Mg2+ and total amount of salts) are considered to be mainly influenced by artificial sources, while PC3 and PC4 (CO3- and HCO32-) are mainly influenced by natural sources. (4) From a geo-statistical point of view, it was ascertained that the pH and soil salt ions, such as Ca2+, Mg2+ and HCO3-, had a strong spatial dependency. Meanwhile, Na+ and Cl- had only a weak spatial dependency in the soil. (5) Soil salinization indicators suggested that the entire area had a low risk of soil salinization, where the risk was mainly due to anthropogenic activities and climate variation. This study can be considered an early warning of soil salinization and alkalization in the Yanqi basin. It can also provide a reference for environmental protection policies and rational utilization of land resources in the arid region of Xinjiang, northwest China, as well as for other oases of arid regions in the world. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000341855900007 |
WOS关键词 | LAND-USE CHANGE ; SALINITY ; VARIABILITY ; IRRIGATION ; REGION ; OASIS ; PREDICTION ; VARIOGRAMS ; XINJIANG ; VALLEY |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
来源机构 | 中国科学院新疆生态与地理研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/184394 |
作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Xinjiang Normal Univ, Key Lab Xingjiang Arid Land Lake Environm & Resou, Urumqi, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang Zhaoyong,Abuduwaili, Jilili,Yimit, Hamid. The Occurrence, Sources and Spatial Characteristics of Soil Salt and Assessment of Soil Salinization Risk in Yanqi Basin, Northwest China[J]. 中国科学院新疆生态与地理研究所,2014,9(9). |
APA | Zhang Zhaoyong,Abuduwaili, Jilili,&Yimit, Hamid.(2014).The Occurrence, Sources and Spatial Characteristics of Soil Salt and Assessment of Soil Salinization Risk in Yanqi Basin, Northwest China.PLOS ONE,9(9). |
MLA | Zhang Zhaoyong,et al."The Occurrence, Sources and Spatial Characteristics of Soil Salt and Assessment of Soil Salinization Risk in Yanqi Basin, Northwest China".PLOS ONE 9.9(2014). |
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