Theory and strategies for vegetation conservation and ecological restoration in a large-scale photovoltaic power station in the southern Tengger Desert

doi:10.7522/j.issn.1000-694X.2024.00037

Journal of Desert Research ›› 2024, Vol. 44 ›› Issue (5): 123-132.DOI: 10.7522/j.issn.1000-694X.2024.00037

Theory and strategies for vegetation conservation and ecological restoration in a large-scale photovoltaic power station in the southern Tengger Desert

Qiang Chen¹(), Hongming Chi², Wei Ding², Haotian Yang³(), Jijun Wu⁴, Yiying Yang², Xudong Wu⁵, Yafeng Zhang³, Bo Ji⁵, Yunfei Li³, Zhishan Zhang³, Lichao Liu³

^1.CNG Energy United Power Technology Company LTD，Beijing 100000，China
^2.Longyuan （Beijing） Solar Technology Co. ，LTD，Beijing 100000，China
^3.Shapotou Desert Research and Experiment Station，Northwest Institute of Eco-Environment and Resources，Chinese Academy of Sciences，Lanzhou 730000，China
^4.Ningxia Longyuan New Energy Co. ，LTD，Yinchuan 750002，China
^5.Institute of Forestry and Grassland Ecology，Ningxia Academy of Agricultural and Forestry Sciences，Yinchuan 750002，China

Received:2023-12-21 Revised:2024-04-02 Online:2024-09-20 Published:2024-10-15
Contact: Haotian Yang

Abstract

Abstract:

Promoting the development of new energy and reforming the energy structure are fundamentally crucial in addressing climate change and energy scarcity. Vigorously developing photovoltaic new energy is an important approach to achieving the goal of "carbon emission peak and carbon neutralization". In recent years， photovoltaic new energy has experienced a significant surge in growth. However， due to limited land resources under the national food security strategy， constructing photovoltaic power stations faces major constraints. To tackle this challenge， the state encourages the construction of large-scale photovoltaic power station in sandy desert， gravel desert， and desert while strictly ensuring ecological protection. The topography of desert areas is intricate， characterized by harsh wind and sand environments， making the destruction of vegetation a straightforward process， however， restoring ecological systems in such conditions poses significant challenges. Effectively enhancing the efficiency of photovoltaic power generation while simultaneously safeguarding vegetation presents a formidable challenge during the construction of large-scale photovoltaic power stations. This study focuses on the investigation and analysis of natural environmental conditions， vegetation status， and soil water characteristics in the project area located at the southern of Tengger Desert. Furthermore， we examine the correlation between sand-fixing shrub cover and shrub mortality as well as the relationship between soil water content and both shrub cover and shrub mortality. Based on the long-term ecological research findings of sand-fixing vegetation， this study proposes scientific recommendations for plant protection and ecological restoration in desert areas， aiming to facilitate the exploration and development of anintegrated model combining desert photovoltaic construction with ecological protection and restoration. These proposals aim to provide technical support for establishing high-quality large-scale demonstration base of desert photovoltaic power stations combined with effective desert governance.

Key words: Tengger Desert, large-scale photovoltaic power base, desertification control, vegetation protection, ecological protection

CLC Number:

Q948.15

Qiang Chen, Hongming Chi, Wei Ding, Haotian Yang, Jijun Wu, Yiying Yang, Xudong Wu, Yafeng Zhang, Bo Ji, Yunfei Li, Zhishan Zhang, Lichao Liu. Theory and strategies for vegetation conservation and ecological restoration in a large-scale photovoltaic power station in the southern Tengger Desert[J]. Journal of Desert Research, 2024, 44(5): 123-132.

Figures/Tables 7

Fig.1 The geographical location of the large-scale photovoltaic power station located on the southern of Tengger Desert

Fig.2 The landscape of mobile sand dunes and sand-binding vegetation on the southern of Tengger Desert

Fig.3 Comprehensive vegetation survey transect of the large-scale photovoltaic power station located on the southern of Tengger Desert

Fig.4 Relationship between shrub cover and mortality

Fig.5 Characteristics of soil water content in vegetation regions with different shrub coverage

Fig.6 Relationship between shrub coverage and soil water content

Fig.7 Relationship between shrub mortality and soil water content

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Theory and strategies for vegetation conservation and ecological restoration in a large-scale photovoltaic power station in the southern Tengger Desert

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