The analysis of NDVI trends in the coastal zone based on Mann-Kendall test: a case in the Jiaodong Peninsula

LIU Ya-long; WANG Qing; BI Jing-zhi; ZHANG Ming-ming; XING Qian-guo; SHI Ping

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Article Navigation > Haiyang Xuebao > 2010 > 32(3): 79-87

LIU Ya-long, WANG Qing, BI Jing-zhi, ZHANG Ming-ming, XING Qian-guo, SHI Ping. The analysis of NDVI trends in the coastal zone based on Mann-Kendall test: a case in the Jiaodong Peninsula[J]. Haiyang Xuebao, 2010, 32(3): 79-87.

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The analysis of NDVI trends in the coastal zone based on Mann-Kendall test: a case in the Jiaodong Peninsula

1.
Coast Lnstitute, Ludong University, Yantai 264025,China
2.
Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences,Yantai 264003,China

Received Date: 2009-09-02
Rev Recd Date: 2010-04-28

Abstract

Abstract

On the basis of 372 images of Spot/Vegetation from 1998 to 2008, the Mann-Kendall non-parametric trend test method was used to analyze the normalized difference vegetation in dex(NDVI) trends on the Jiaodong Penisula.During past decade, the areas with decreasing NDVI trends dominated the Jiaodong Peninsula. About 19.3% of the whole area exhibited significant declining trends in the NDVI, and merely 2.8% of areas showed increasing trends. The areas with decreasing trends distributed annularly along the coastline. The increasing trends gradually became more prominent from the coastline to the inner land. Most regions which manifested distinct weakening trends were mainly located within a distance of 30 km apart from the coastline. The regions showing obvious improvement were located in the central peninsula and the coastal forest shelterbelt areas. Human activity and its spatial distribution were the main causes of NDVI changes. Urbanization, industrialization and exploitation of the coastal wetlands resulted in the decaying of NDVI. Protection of the mountain vegetation and the construction of the coastal forest shelterbelt promoted the increasing of NDVI.
- NDVI,
- time series,
- Mann-Kendall test,
- coastal zone,

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References(32)

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