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Spatial heterogeneity of soil fertility in coastal zones: a case study of the Yellow River Delta, China
Wang, Youxiao1,2; Liu, Gaohuan1,2; Zhao, Zhonghe1,2
2021-02-25
Source PublicationJOURNAL OF SOILS AND SEDIMENTS
ISSN1439-0108
Pages14
Corresponding AuthorLiu, Gaohuan(liugh@lreis.ac.cn)
AbstractPurpose At the intersection of land and sea, coastal zones are unstable areas that can suffer intensive coastal erosion or sedimentation. The Yellow River Delta, which has experienced rapid land growth, is of great significance in soil fertility research. Materials and methods To qualitatively and quantitatively analyse the basic soil fertility characteristics of coastal zones, we sampled six soil chemical indicators obtained from the Yellow River Delta in July 2019. Principal component analysis (PCA) and the Nemoro quality index (NQI) were integrated for the geostatistical analysis of soil fertility by using the ArcGIS and SPSS software. Results and discussion The NQI, modified NQI (mNQI) and PCA results significantly represented soil fertility, and the mNQI performed better than the NQI. The soil fertility met the classification of 'III, generally fertile'. The main factors affecting soil fertility were total potassium, total nitrogen and organic matter. The soil fertility indexes declined consistently from west to east. Increasing distance from the sea significantly negatively affected soil fertility, while soil fertility positively impacted land productivity. Conclusions Therefore, future agricultural planning should focus on soil total nitrogen, total potassium and organic matter and control salinization to improve land productivity. The eastern coastal zone, especially the south-eastern region, should be the first area of focus.
KeywordYellow River Delta Soil fertility index Principal component analysis Nemoro quality index Geostatistical analysis
DOI10.1007/s11368-021-02891-5
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFD0300403] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA23050101] ; National Natural Science Foundation of China[42001227]
Funding OrganizationNational Key R&D Program of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Agriculture
WOS SubjectEnvironmental Sciences ; Soil Science
WOS IDWOS:000621722600001
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/160498
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLiu, Gaohuan
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Youxiao,Liu, Gaohuan,Zhao, Zhonghe. Spatial heterogeneity of soil fertility in coastal zones: a case study of the Yellow River Delta, China[J]. JOURNAL OF SOILS AND SEDIMENTS,2021:14.
APA Wang, Youxiao,Liu, Gaohuan,&Zhao, Zhonghe.(2021).Spatial heterogeneity of soil fertility in coastal zones: a case study of the Yellow River Delta, China.JOURNAL OF SOILS AND SEDIMENTS,14.
MLA Wang, Youxiao,et al."Spatial heterogeneity of soil fertility in coastal zones: a case study of the Yellow River Delta, China".JOURNAL OF SOILS AND SEDIMENTS (2021):14.
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