Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, China

Tourism is a primary socio-economic factor on many coastal islands. Tourism contributes to the livelihoods of the residents, but also influences natural resources and energy consumption and can become a significant driver of land conversion and environmental change. Understanding the influence of to...

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Main Authors: Lixia Chu, Francis Oloo, Bin Chen, Miaomiao Xie, Thomas Blaschke
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/12/17/2813
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author Lixia Chu
Francis Oloo
Bin Chen
Miaomiao Xie
Thomas Blaschke
author_facet Lixia Chu
Francis Oloo
Bin Chen
Miaomiao Xie
Thomas Blaschke
author_sort Lixia Chu
collection DOAJ
description Tourism is a primary socio-economic factor on many coastal islands. Tourism contributes to the livelihoods of the residents, but also influences natural resources and energy consumption and can become a significant driver of land conversion and environmental change. Understanding the influence of tourist-related activities is vital for sustainable tourism development. We chose Hainan Island in South China as a research area to study the influence of tourist-driven activities on environmental variables (as Land Surface Temperatures (LST) and related ecosystem variables) during the period of 2000 to 2019. In Hainan, the local economy relies heavily on tourism, with an ever-growing influx of tourists each year. We categorised location-based points of interest (POIs) into two classes, non-tourism sites and tourism-related sites, and utilised satellite data from the cloud-based platform Google Earth Engine (GEE) to extract LST and Normalized Difference Vegetation Index (NDVI) data. We analysed the LST variations, NDVI changes and the land use/land cover (LULC) changes and compared the relative difference in LST and NDVI between the tourism-related sites and non-tourism-related sites. The main findings of this study were: (1) The median LST in the tourism-related sites was relatively higher (1.3) than the LST in the non-tourism-related sites for the 20 years. Moreover, every annual mean LST of tourism-related sites was higher than the LST values in non-tourism-related sites, with an average difference of 1.2 °C for the 20 years and a maximum difference of 1.7 °C. We found higher annual LST anomalies for tourist-related sites compared to non-tourism sites after 2010, which indicated the likely positive differences in LST above the average LST during 20 years for tourism-related sites when compared against the non-tourism related sites, thus highlighting the potential influence of tourism activities on LST. (2) The annual mean NDVI value for tourism-related sites was significantly lower than for non-tourism places every year, with an average NDVI difference of 0.26 between the two sites. (3) The land cover changed significantly: croplands and forests reduced by 3.5% and 2.8% respectively, while the areas covered by orchards and urban areas increased by 2% and 72.3% respectively. These results indicate the influence of the tourism-driven activities includes the relatively high LST, vegetation degradation and land-use conversion particular to urban cover type. The outcome of this work provides a method that combines cloud-based satellite-derived data with location-based POIs data for quantifying the long-term influence of tourism-related activities on sensitive coastal ecosystems. It contributes to designing evidence-driven management plans and policies for the sustainable tourism development in coastal areas.
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spelling doaj.art-21c879c555bf4187b3221de91655bbad2023-11-20T11:55:03ZengMDPI AGRemote Sensing2072-42922020-08-011217281310.3390/rs12172813Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, ChinaLixia Chu0Francis Oloo1Bin Chen2Miaomiao Xie3Thomas Blaschke4Interfaculty Department of Geoinformatics–Z_GIS, University of Salzburg, Schillerstrasse 30, 5020 Salzburg, AustriaInterfaculty Department of Geoinformatics–Z_GIS, University of Salzburg, Schillerstrasse 30, 5020 Salzburg, AustriaSchool of Land Science and Technology, China University of Geosciences (Beijing), Haidian District, Beijing 100083, ChinaSchool of Land Science and Technology, China University of Geosciences (Beijing), Haidian District, Beijing 100083, ChinaInterfaculty Department of Geoinformatics–Z_GIS, University of Salzburg, Schillerstrasse 30, 5020 Salzburg, AustriaTourism is a primary socio-economic factor on many coastal islands. Tourism contributes to the livelihoods of the residents, but also influences natural resources and energy consumption and can become a significant driver of land conversion and environmental change. Understanding the influence of tourist-related activities is vital for sustainable tourism development. We chose Hainan Island in South China as a research area to study the influence of tourist-driven activities on environmental variables (as Land Surface Temperatures (LST) and related ecosystem variables) during the period of 2000 to 2019. In Hainan, the local economy relies heavily on tourism, with an ever-growing influx of tourists each year. We categorised location-based points of interest (POIs) into two classes, non-tourism sites and tourism-related sites, and utilised satellite data from the cloud-based platform Google Earth Engine (GEE) to extract LST and Normalized Difference Vegetation Index (NDVI) data. We analysed the LST variations, NDVI changes and the land use/land cover (LULC) changes and compared the relative difference in LST and NDVI between the tourism-related sites and non-tourism-related sites. The main findings of this study were: (1) The median LST in the tourism-related sites was relatively higher (1.3) than the LST in the non-tourism-related sites for the 20 years. Moreover, every annual mean LST of tourism-related sites was higher than the LST values in non-tourism-related sites, with an average difference of 1.2 °C for the 20 years and a maximum difference of 1.7 °C. We found higher annual LST anomalies for tourist-related sites compared to non-tourism sites after 2010, which indicated the likely positive differences in LST above the average LST during 20 years for tourism-related sites when compared against the non-tourism related sites, thus highlighting the potential influence of tourism activities on LST. (2) The annual mean NDVI value for tourism-related sites was significantly lower than for non-tourism places every year, with an average NDVI difference of 0.26 between the two sites. (3) The land cover changed significantly: croplands and forests reduced by 3.5% and 2.8% respectively, while the areas covered by orchards and urban areas increased by 2% and 72.3% respectively. These results indicate the influence of the tourism-driven activities includes the relatively high LST, vegetation degradation and land-use conversion particular to urban cover type. The outcome of this work provides a method that combines cloud-based satellite-derived data with location-based POIs data for quantifying the long-term influence of tourism-related activities on sensitive coastal ecosystems. It contributes to designing evidence-driven management plans and policies for the sustainable tourism development in coastal areas.https://www.mdpi.com/2072-4292/12/17/2813tourism-related activitiesland surface temperaturevegetation degradationland cover transformationGEEPOIs
spellingShingle Lixia Chu
Francis Oloo
Bin Chen
Miaomiao Xie
Thomas Blaschke
Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, China
Remote Sensing
tourism-related activities
land surface temperature
vegetation degradation
land cover transformation
GEE
POIs
title Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, China
title_full Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, China
title_fullStr Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, China
title_full_unstemmed Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, China
title_short Assessing the Influence of Tourism-Driven Activities on Environmental Variables on Hainan Island, China
title_sort assessing the influence of tourism driven activities on environmental variables on hainan island china
topic tourism-related activities
land surface temperature
vegetation degradation
land cover transformation
GEE
POIs
url https://www.mdpi.com/2072-4292/12/17/2813
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