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Are Karst Rocky Desertification Areas Affected by Increasing Human Activity in Southern China? An Empirical Analysis from Nighttime Light Data

by 1,2,3,*, 1,2 and 1,2,*
1
School of Geographical Sciences, State Cultivation Base of Eco-agriculture for Southwest Mountainous Land, Southwest University, Chongqing 400715, China
2
Chongqing Jinfo Mountain Field Scientific Observation and Research Station for Kaster Ecosystem, School of Geographical Sciences, Southwest University, Chongqing 400715, China
3
Chongqing Engineering Research Centre for Remote Sensing Big Data Application, School of Geographical Sciences, Southwest University, Chongqing 400715, China
*
Authors to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2019, 16(21), 4175; https://doi.org/10.3390/ijerph16214175
Received: 7 September 2019 / Revised: 23 October 2019 / Accepted: 28 October 2019 / Published: 29 October 2019
Due to remarkable socioeconomic development, an increasing number of karst rocky desertification areas have been severely affected by human activities in southern China. Effectively analyzing human activities in karst rocky desertification areas is a critical prerequisite for managing and restoring areas with tremendous negative impacts from desertification. At present, a timely and accurate way of quantifying the spatiotemporal variations of human activities in karst rocky desertification areas is still lacking. In this communication, we attempted to quantify human activities from the corrected Suomi National Polar-orbiting Partnership (NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) nighttime light composite data from 2012 to 2018 based on statistical analysis. The results show that a significant increase of night lights could be clearly identified during the study period. The total nighttime lights (TL) related to severe karst rocky desertification (S) were particularly concentrated in Guizhou and Yunnan. The nighttime light intensity (LI) related to the S areas in Chongqing was the strongest due to its rapid socioeconomic development. The annual growth rate of nighttime lights (GL) has been slow or even negative in Guangdong because of its various karst rocky desertification restoration programs. This communication could provide an effective approach for quantifying human activities and provide useful information about where prompt attention is required for policy-making on the restoration of the karst rocky desertification areas. View Full-Text
Keywords: nighttime light data; human activities; karst rocky desertification; environmental impact; China nighttime light data; human activities; karst rocky desertification; environmental impact; China
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MDPI and ACS Style

Shi, K.; Yang, Q.; Li, Y. Are Karst Rocky Desertification Areas Affected by Increasing Human Activity in Southern China? An Empirical Analysis from Nighttime Light Data. Int. J. Environ. Res. Public Health 2019, 16, 4175. https://doi.org/10.3390/ijerph16214175

AMA Style

Shi K, Yang Q, Li Y. Are Karst Rocky Desertification Areas Affected by Increasing Human Activity in Southern China? An Empirical Analysis from Nighttime Light Data. International Journal of Environmental Research and Public Health. 2019; 16(21):4175. https://doi.org/10.3390/ijerph16214175

Chicago/Turabian Style

Shi, Kaifang; Yang, Qingyuan; Li, Yuanqing. 2019. "Are Karst Rocky Desertification Areas Affected by Increasing Human Activity in Southern China? An Empirical Analysis from Nighttime Light Data" Int. J. Environ. Res. Public Health 16, no. 21: 4175. https://doi.org/10.3390/ijerph16214175

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