Effect of fence management on soil phosphorus content in the Alpine grassland in Qinghai-Xizang Plateau

ZHANG Chen; SUN Jian; ZHANG Mengqi; LI Ruowei; WU Jianghang; SUN Le; Duojieji

doi:10.11829/j.issn.1001-0629.2024-0197

Pratacultural Science > 2024 > 41(8): 1802-1813. > DOI: 10.11829/j.issn.1001-0629.2024-0197

ZHANG C, SUN J, ZHANG M Q, LI R W, WU J H, SUN L, Duojieji. Effect of fence management on soil phosphorus content in the Alpine grassland in Qinghai-Xizang Plateau. Pratacultural Science, 2024, 41(8): 1802-1813. DOI: 10.11829/j.issn.1001-0629.2024-0197

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Effect of fence management on soil phosphorus content in the Alpine grassland in Qinghai-Xizang Plateau

ZHANG Chen^{1, 2,},
SUN Jian^{1, 2, ,},
ZHANG Mengqi^{1, 3},
LI Ruowei⁴,
WU Jianghang^{1, 3},
SUN Le¹,
Duojieji^{1, 5}

1.
State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources / Institute of Tibetan Plateau Research Chinese Academy of Sciences, Beijing 100101, China
2.
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
3.
College of Ecology, Lanzhou University, Lanzhou 730000, Gansu, China
4.
College of Grassland, Resources and Environment / Key Laboratory of Grassland Resources of the Ministry of Education of China, Inner Mongolia Agricultural University, Hohhot 010019, Inner Mongolia, China
5.
Haixi Forest Pest Control and Quarantine Center, Delingha 817099, Qinghai, China

More Information

Corresponding author:
SUN Jian　E-mail: sunjian@itpcas.ac.cn
Received Date: March 28, 2024
Accepted Date: July 17, 2024
Available Online: July 31, 2024

Graphical Abstract

Abstract

Abstract

Fences are widely used in grassland management practices, and phosphorus is an essential nutrient for plant growth. It is crucial to investigate the impact and drivers of fence placement on soil phosphorus cycling to evaluate the dynamics of phosphorus in alpine grassland ecosystems. Moreover, there is a lack of systematic research on fence management and soil phosphorus content. To bridge this knowledge gap, 101 articles were selected for a meta-analysis, based on the Web of Science core database and the China Knowledge Network search platform, to explore the responses of soil total phosphorus (STP) and soil available phosphorus (SAP) in different alpine grasslands to fence management measures and fencing years (short-term 1～4 years, medium-term 5～8 years, and long-term 9～30 years). The results showed that: 1) Generally, fencing significantly increased STP, SAP, total nitrogen (STN), organic carbon (SOC), available nitrogen (SAN), and moisture (SM) levels (P < 0.001) but decreased pH and bulk density (P < 0.01). 2) The positive effect of fencing on STP and SAP in the alpine steppe was significantly higher than that on phosphorus content in the alpine meadow (P < 0.001). 3) According to the years of fencing, medium-term and long-term fencing exerted a significant positive effect on STP (P < 0.001), short-term fencing significantly promoted steppe STP, and medium-term and long-term fencing resulted in a decrease in steppe STP. Fencing helped to improve SAP, and medium term exerted the greatest effect of fencing on steppe SAP. 4) The effects of fencing on STP, STN, and SOC varied synergistically. However, soil acidification significantly increased the effect of fencing on STP. The effect of fencing on STP increased significantly with an increase in temperature. In addition, the effects of fencing on SAP and STN were significantly correlated. Our study revealed that reasonable fencing improves soil phosphorus content in alpine grassland ecosystems, and the results provide a theoretical reference for the scientific management of alpine grasslands.
- soil nutrients,
- grassland management,
- fence enclosure,
- grassland restoration measure,
- restoration years,
- meta-analysis,
- soil physical and chemical properties

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References (83)

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Effect of fence management on soil phosphorus content in the Alpine grassland in Qinghai-Xizang Plateau

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