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Study on the relationship between karst rocky desertification and climate change. Download the TM remote sensing images covering the entire Guangxi Landsat5 in 1990, 1995 and 2005 respectively, combine with field surveys to determine the rocky desertification grading indicators, use ENVI to interpret the rocky desertification in different three years and calculate the area. Statistics of the average annual temperature and annual rainfall in Guangxi karst areas in the past 16 years have been used to calculate the karst dissolution rate. The results show that the annual increase of karst rocky desertification in Guangxi is 651.52 km2, and the average annual dissolution rate of karst is 106.37 m3.km−2.a−1. The growth rate of rocky desertification in the first 5 years was 1282.69 km2, and the karst dissolution rate was 107.04 m3.km−2.a−1. In the following 10 years, the growth rate of rocky desertification decreased to 401.08 km2, and the karst dissolution rate was 105.97 m3.km− 2.a−1.From the perspective of climate change, it shows that changes in temperature and rainfall have exacerbated the evolution of rocky desertification. Climate change accelerates the evolution of rocky desertification in karst areas.

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Study on the Relationship Between Karst Rocky Desertification and Climate Change a Case of Guangxi

  • 会议论文

  • 发表日期：

    2026年

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  • Chengjie Su,
  • Yujun Shi,
  • Yajun Fan,
  • Jintao Yang

摘要

Study on the relationship between karst rocky desertification and climate change. Download the TM remote sensing images covering the entire Guangxi Landsat5 in 1990, 1995 and 2005 respectively, combine with field surveys to determine the rocky desertification grading indicators, use ENVI to interpret the rocky desertification in different three years and calculate the area. Statistics of the average annual temperature and annual rainfall in Guangxi karst areas in the past 16 years have been used to calculate the karst dissolution rate. The results show that the annual increase of karst rocky desertification in Guangxi is 651.52 km2, and the average annual dissolution rate of karst is 106.37 m3.km−2.a−1. The growth rate of rocky desertification in the first 5 years was 1282.69 km2, and the karst dissolution rate was 107.04 m3.km−2.a−1. In the following 10 years, the growth rate of rocky desertification decreased to 401.08 km2, and the karst dissolution rate was 105.97 m3.km− 2.a−1.From the perspective of climate change, it shows that changes in temperature and rainfall have exacerbated the evolution of rocky desertification. Climate change accelerates the evolution of rocky desertification in karst areas.