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Journal of Desert Research ›› 2024, Vol. 44 ›› Issue (4): 284-292.DOI: 10.7522/j.issn.1000-694X.2024.00096

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Characteristics of ecological environment changes and advices for combating desertification in typical semi-arid sandy land

Jiannan Lu1(), Yuqiang Li1,2(), Xueyong Zhao1, Baocheng Li3, Xuyang Wang1,2, Rui Zhang1,2   

  1. 1.Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands / Naiman Desertification Research Station,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Daliushu State-owned Sand Control Forest Farm in Naiman Banner,Naiman Banner 028300,Inner Mongolia,China
  • Received:2024-05-27 Revised:2024-07-13 Online:2024-07-20 Published:2024-08-29
  • Contact: Yuqiang Li

Abstract:

Sandy lands, as vital components of terrestrial ecosystems, possess unique structures and functions. In the agro-pastoral transitional zone of northern China's semi-arid and semi-humid regions, sandy lands have undergone rapid human-induced changes, both positive and negative. These changes are primarily reflected in phases of "destructive utilization" and "protective restoration utilization". Extensive development models have caused issues such as land desertification, over-exploitation of water resources, and ecological imbalance. This study focuses on the Horqin Sandy Land, Mu Us Sandy Land, Hunshandake Sandy Land, and Hulunbuir Sandy Land. It reviews literature and research findings on the regional differentiation characteristics of natural elements in typical semi-arid sandy lands, the spatiotemporal evolution of desertified land and its driving forces, and the co-evolution of vegetation-soil characteristics. Given the current state of land desertification and its management amidst climate change and human activities, future research should prioritize the coordination of human-land relationships in sandy lands under policy guidance, enhance ecological restoration and vegetation stability based on regional water balance, and scientifically advance key ecological engineering projects, such as those in the Horqin Sandy Land and Hunshandake Sandy Land, thereby promoting sustainable development across ecological, economic, and social systems in semi-arid sandy lands.

Key words: semi-arid regions, sandy land, natural elements, desertification, ecological governance

CLC Number: