PROGRESS IN GEOGRAPHY ›› 2020, Vol. 39 ›› Issue (4): 567-576.doi: 10.18306/dlkxjz.2020.04.004

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Spatiotemporal characteristics of human activity intensity and its driving mechanism in Hainan Island from 1980 to 2018

LIU Cai1,2(), ZHANG Haiyan3,*(), LI Qian1   

  1. 1. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing 100083, China
    2. College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, Sichuan, China
    3. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2019-04-24 Revised:2019-07-23 Online:2020-04-28 Published:2020-09-07
  • Contact: ZHANG Haiyan E-mail:cindy676@126.com;zhanghy.13b@igsnrr.ac.cn
  • Supported by:
    China Geological Survey Project(DD20190705);China Postdoctoral Science Foundation(2019M650820)

Abstract:

Quantitative assessment of regional human activity intensity can reflect the relationship between people and environment, which can provide a scientific basis for landuse-related decision making and eco-environment construction. Based on the land use/land cover data with 1 km resolution, we quantitatively evaluated the spatial-temporal features of human activity intensity in Hainan Island from 1980 to 2018. On this basis, we analyzed the overall change and spatial correlation of human activity intensity and explored its driving mechanism. The results showed that: 1) The main types of land use were woodland and farmland in the study area in 2018, accounting for 62.85% and 25.27%, respectively. Only bulit-up land increased sharply, and areas of all other land use types reduced from 1980 to 2018. The areal reductions of farmland and grassland were the largest and the decreases were 397.81 km2 and 303.02 km2, respectively. 2) Human activity intensity gradually increased from 10.54% (1980) to 12.86% (2018), risen by 22.01%. Before 2000, it was relatively stable and after that, it grew fast. 3) The spatial distribution of human activity intensity was high in the coastal areas and low in the central part of the island. Human activity intensity showed significant spatial agglomeration effect and the hotspots were concentrated mainly in areas of rapid urban development, such as Haikou City and Sanya City. 4) The human activity intensity in Hainan Island was mainly driven by government policy, rapid population growth, economic development, and so on.

Key words: human activity intensity, land use/land cover, Hainan Island