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Responses of tree-ring growth and crop yield to drought indices in the Shanxi province, North China
Sun, JY (Sun, Junyan)[ 1 ]; Liu, Y (Liu, Yu)[ 2,1 ]
2014-09-01
Source PublicationINTERNATIONAL JOURNAL OF BIOMETEOROLOGY
Volume58Issue:7Pages:1521-1530
Subtype期刊论文
Abstract

In this paper, we analyze the relationships among the tree-ring chronology, meteorological drought (precipitation), agricultural drought (Palmer Drought Severity Index PDSI), hydrological drought (runoff), and agricultural data in the Shanxi province of North China. Correlation analyses indicate that the tree-ring chronology is significantly correlated with all of the drought indices during the main growing season from March to July. Sign test analyses further indicate that the tree-ring chronology shows variation similar to that of the drought indices in both high and low frequencies. Comparisons of the years with narrow tree rings to the severe droughts reflected in all three indices from 1957 to 2008 reveal that the radial growth of the trees in the study region can accurately record the severe drought for which all three indices were in agreement (1972, 1999, 2000, and 2001). Comparisons with the dryness/wetness index indicate that tree-ring growth can properly record the severe droughts in the history. Correlation analyses among agricultural data, tree-ring chronology, and drought indices indicate that the per-unit yield of summer crops is relatively well correlated with the agricultural drought, as indicated by the PDSI. The PDSI is the climatic factor that significantly influences both tree growth and per-unit yield of summer crops in the study region. These results indicate that the PDSI and tree-ring chronology have the potential to be used to monitor and predict the yield of summer crops. Tree-ring chronology is an important tool for drought research and for wider applications in agricultural and hydrological research.

KeywordTree-ring Chronology Drought Crop Yield
DOI10.1007/s00484-013-0757-5
Indexed BySCI
Language英语
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9786
Collection现代环境研究室
Corresponding AuthorLiu, Y (Liu, Yu)[ 2,1 ]
Affiliation1.The State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710075, China;
2.Department of Environmental Science and Technology, School ofHuman Settlements and Civil Engineering, Xi’an JiaotongUniversity, Xi’an 710049, China
Recommended Citation
GB/T 7714
Sun, JY ,Liu, Y . Responses of tree-ring growth and crop yield to drought indices in the Shanxi province, North China[J]. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,2014,58(7):1521-1530.
APA Sun, JY ,&Liu, Y .(2014).Responses of tree-ring growth and crop yield to drought indices in the Shanxi province, North China.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY,58(7),1521-1530.
MLA Sun, JY ,et al."Responses of tree-ring growth and crop yield to drought indices in the Shanxi province, North China".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 58.7(2014):1521-1530.
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