Landform intensity index of artificial construction and its characteristics of spatial pattern evolution in coastal zone of Xiangshangang Bay

doi:10.3969/j.issn.1001-909X.2018.01.005

Abstract

Abstract: With the rapid development of the eastern coastal harbor region and the continuous formation of man-made landforms, the geomorphic pattern of the harbor area has also changed accordingly. Quantitative study of the spatial and temporal pattern changes of coastal artificial constructed landform can be a comprehensive scientific and practical evaluation of human construction behavior, and it has a certain scientific and practical value. Four periods TM/OLI remote sensing images of 1990, 2000, 2010 and 2015 from Xiangshangang Bay were taken as the main data source, the changes of artificial constructed landform intensity during the last 25 years in Xiangshangang coastal zone were analyzed and its spatial pattern evolution was further explored. The research shows: (1) The development trend of artificial constructed landform in the coastal zone of Xiangshangang Bay appears a rapid growth in the early stage, a slow increase in the medium term and a strong follow-up, and its area growth has significant historical characteristics. (2) The number of punctate and surface topographic patches in each county (city) area rise in fluctuation as a whole, but its internal development level varies greatly. The rate and degree of geomorphic development in Ninghai County and Xiangshan County are in the lead. (3) The pattern evolution process can be divided into four important stages: point-like dispersion period, surface aggregation period, strip extension period and compound, update the diffusion period.

Key words: artificial constructed landform, artificial constructed landform intensity index, spatial pattern evolution, coastal zone of Xiangshangang Bay

CLC Number:

P737

HUANG Ri-peng, LI Jia-lin, YANG Lei, HE Gai-li, FENG Bai-xiang. Landform intensity index of artificial construction and its characteristics of spatial pattern evolution in coastal zone of Xiangshangang Bay[J]. Journal of Marine Sciences, 2018, 36(1): 46-57.

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