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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (4): 99-109.DOI: 10.7522/j.issn.1000-694X.2021.00214

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Impacts of landscape structure changes on ecosystem services in the Hunshandake Sandy Land

Jing Luo1(), Xiaoxia Huang1(), Hong Cheng2(), Ning Jiang2, Xuyu Mo3, Xiuyu Wang1   

  1. 1.School of Earth Sciences / Key Laboratory of Atmospheric Environment and Processes in the Boundary Layer Over the Low-latitude Plateau Region,Yunnan University,Kunming 650091,China
    2.State Key Laboratory of Earth Surface Processes and Resource Ecology / Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China
    3.Yunnan Atmospheric Observation Technology Support Centre,Yunnan Meteorological Bureau,Kunming 650034,China
  • Received:2021-09-29 Revised:2021-12-12 Online:2022-07-20 Published:2022-08-29
  • Contact: Xiaoxia Huang,Hong Cheng

Abstract:

As one of the huge national ecological restoration projects aimed at social-ecological sustainability, the Beijing-Tianjin Sand Source Control Project (BTSSCP) has been launched for nearly 20 years, which significantly improved the environmental status in the Beijing-Tianjin-Hebei region. The spatial and temporal changes of ecosystem services (ESs) were assessed since the BTSSCP was carried out in the study area. There were eight indicators of ESs, i.e. wind erosion control, water erosion control, vegetation carbon sequestration, soil carbon storage, livestock production, food production, natural habitat diversity, and population residence supporting services, along with the multiple ecosystem services landscape index (MESLI), as well as four landscape structure indexes were used for the analysis. And redundancy analysis (RDA) and variation partitioning method were used to analyze the relationship between ESs and vegetation landscape patterns. The main results were as follows, (1) from 2000 to 2015, the area of woodland and grassland in Hunsandak Sandy Land decreased, while the sandy land area increased by 110%. However, the landscape structure of woodland was improved, while grassland and sandy land fragmentation increased with the connectivity index decreased. (2) The improvement of ESs was in the eastern and southern parts of the study area with MESLI increasing from 19% to 85%, which related to the improvement of the spatial configuration of woodland; the ESs provision was worse in the central and western parts with MESLI decreasing of 28% to 43%, owing to landscape fragmentation with grassland degradation and sandy land expansion. (3) It was explained by landscape pattern for the provision of regional ESs increased from 60.88% in 2000 to 69.21% in 2015, with an increase in co-explained variation of landscape composition and configuration, and the landscape composition component contributed more than that of configuration component. The relative contribution of vegetation landscape configuration to ecosystem services increased, indicating that the implementation of vegetation restoration projects, has enhanced the effectiveness of sand fixation in terms of landscape spatial structure and improved regional ESs. The above results can provide macro-level management and design references for desert management in the BTSSCP region.

Key words: ecosystem services, landscape composition, landscape configuration, land use change, sand source region to Beijing-Tianjin

CLC Number: