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FOREST RESOURCES WANAGEMENT ›› 2023, Vol. 0 ›› Issue (3): 9-14.doi: 10.13466/j.cnki.lyzygl.2023.03.002

• Ecological Forum • Previous Articles     Next Articles

Main Results of the Fourth Rocky Desertification Survey in Karst Area and Analysis of Rocky Desertification Control Situation

NING Xiaobin1,2(), WU Xiebao1,2(), HUANG Junwei1,2, WU Houjian1,2, LIU Wei1,2, PENG Xi1,2   

  1. 1. Central South Academy of Inventory and Planning of National Forestry and Grassland Administration,Changsha 410014,China
    2. Rocky Desertification Monitoring Center of National Forestry and Grassland Administration,Changsha 410014,China
  • Received:2023-03-28 Revised:2023-05-06 Online:2023-06-28 Published:2023-08-09

Abstract:

The fourth rocky desertification survey in Karst area was based on the result of the third national land survey,while taking 2021 as the base year to comprehensively investigate the condition and change of the rocky desertification land China.This paper briefly introduced the basic situation of the fourth rocky desertification survey,the present situation and dynamic change of rocky desertification land,as well as analyzed the current situation of rocky desertification control,and put forward countermeasures and suggestions.The results showed that,the rocky desertification land area was 7.223 million hm2 by 2021.Compared with 2016,the net decrease of rocky desertification land area was 3.331 million hm2,while the average annual decrease was 0.666 million hm2.The main results indicating that the rocky desertification land in China presents the overall evolution direction of "area decreasing,degree reduction and ecological condition being stable ".

Key words: karst area, rocky desertification, status, dynamic change

CLC Number: