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Journal of Desert Research ›› 2022, Vol. 42 ›› Issue (6): 221-232.DOI: 10.7522/j.issn.1000-694X.2022.00055

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Responses of plant species diversity to land use change: a case study in the Heihe River Basin

Shengtang Wang1,2,4(), Yingchun Ge1,2, Shaokun Wang3, Xiaolong Zhang5, Ying Yang6()   

  1. 1.Heihe Remote Sensing Experimental Research Station /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.Key Laboratory of Remote Sensing of Gansu Province /, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    3.Urat Desert-grassland Research Station, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    4.University of Chinese Academy of Sciences,Beijing 100049,China
    5.School of Resources and Environment,Shanxi University of Finance and Economics,Taiyuan 030006,China
    6.Gansu Taohe National Nature Reserve Administration,Hezuo 747000,Gansu,China
  • Received:2021-01-13 Revised:2022-04-08 Online:2022-11-20 Published:2023-01-09
  • Contact: Ying Yang

Abstract:

Plant species diversity is seriously affected by land use change in the Heihe River Basin. This study used the Dyna-CLUE model to simulate land use change in 2050 to understand the trends of plant species diversity under the influence of natural and socioeconomic factors on land use change in the Heihe River Basin, to reveal land use change in the Heihe River Basin under the influence of multiple factors, and the relationship between land use change and herbaceous and shrub species diversity. The results showed that factors such as precipitation, GDP and distance from natural villages jointly drove land use changes, and the increase of forest, grassland and water and the decrease of unutilized land area in 2050 increased the diversity of shrubs and herbs and led to a higher evenness and a decrease of interspecific dominance. The expansion of farmland and intensification of farming land lead to uneven distribution of plants and decrease in diversity. The combination of model simulation results and plant species diversity trends can provide a basis for future land use planning, policy and ecological conservation decisions. Corresponding biodiversity and ecological protection policies should be formulated for land use changes in different regions to promote ecological restoration and support sustainable development in the Heihe River Basin.

Key words: land use change, Dyna-CLUE model, species diversity, Heihe River Basin

CLC Number: