Climatic suitability zoning of natural pasture cultivation in Qinghai Province

SUN Weijie; ZHOU Bingrong; ZHOU Huakun; ZHAO Tong; SHI Mingming; XIAO Ruixiang

doi:10.11829/j.issn.1001-0629.2022-0350

Pratacultural Science > 2023 > 40(4): 885-894. > DOI: 10.11829/j.issn.1001-0629.2022-0350

SUN W J, ZHOU B R, ZHOU H K, ZHAO T, SHI M M, XIAO R X. Climatic suitability zoning of natural pasture cultivation in Qinghai Province. Pratacultural Science, 2023, 40(4): 885-894 . DOI: 10.11829/j.issn.1001-0629.2022-0350

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Climatic suitability zoning of natural pasture cultivation in Qinghai Province

1.
Key Laboratory of Disaster Prevention and Mitigation of Qinghai Province, Xining 810001, Qinghai, China
2.
Institute of Meteorological Science of Qinghai Province, Xining 810001, Qinghai, China
3.
Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810008, Qinghai, China

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Corresponding author:
ZHOU Bingrong　E-mail: zbr0515@foxmail.com
Received Date: April 24, 2022
Accepted Date: July 05, 2022
Available Online: March 28, 2023
Published Date: April 14, 2023

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Abstract

Abstract

With the impact of climate change on pasture growth, artificial planting has become a topic of interest. Establishing the influence of climate, soil, and altitude on the growth of native pasture can provide a basis for artificial planting in the future. Elymus nutans, Poa crymophila, Agropyron cristatum, and Ceratoides latens are suitable forage varieties for artificial planting in Qinghai Province. We used the MaxEnt model to analyze the potential distribution of four natural pastures in Qinghai Province and the dominant environmental variables under the current climatic conditions. Our findings indicate that the MaxEnt model has high accuracy in predicting the suitable habitats of four natural pastures, E. nutans, P. crymophila, A. cristatum, and C. latens under the current climatic conditions. The geographical distribution patterns of E. nutans, P. crymophila, and A. cristatum are similar to a certain extent, and they are all concentrated in the eastern, southeastern and southern Qinghai Province, while C. latens is mainly distributed in the northeastern and southern margins of the Qaidam Basin and the southern part of the Qinghai Lake Basin. The environmental variables affecting the suitable range of the four kinds of natural pastures in Qinghai Province were similar to some extent, with some differences. Downward shortwave surface flux, altitude, and near-surface air temperature have a greater impact on E. nutans, P. crymophila, A. cristatum, while the environmental variables that have a greater impact on C. latens are precipitation, altitude, and near-surface temperature. This study is substantial for understanding the geographical distribution pattern and habitat conditions of various natural pastures in Qinghai Province, to provide a reference for the development of artificial forage grass planting.
- Qinghai Province,
- natural pastures,
- MaxEnt,
- climate,
- terrain,
- soil,
- suitability

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