[1]YANG Jiayi,ZHAO Guangju,MU Xingmin,et al.Soil Properties of Different Surface Types Disturbed by Plateau Pika in Alpine Meadow[J].Research of Soil and Water Conservation,2022,29(03):115-120.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 03
Page number:
115-120
Column:
Public date:
2022-04-20
- Title:
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Soil Properties of Different Surface Types Disturbed by Plateau Pika in Alpine Meadow
- Author(s):
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YANG Jiayi1,2, ZHAO Guangju1,2, MU Xingmin1,2, TIAN Peng3, GAO Peng1,2, SUN Wenyi1,2
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(1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Institute of Soil and Water Conservation, Chinese Academy and Sciences and ministry of Water Resources, Yangling, Shaanxi 712100, China; 3.College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China)
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- Keywords:
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alpine meadow; pika disturbance; soil physical and chemical properties; soil enzyme activity; soil quality assessment
- CLC:
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S812.2; S812.6
- DOI:
-
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- Abstract:
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In order to explore the effects of plateau pika(Ochotona curzoniae)activities on soil physicochemical properties and biological activities of alpine meadow, we selected the meadow affected by plateau pika in Maqin County, Qinghai Province as the research area. Four types of meadow soil were sampled according to the different land surface influenced by pika disturbance. The physical and chemical properties and biological properties of four meadow soils were analyzed. And the principal component analysis was used to evaluate the soil quality of different surface types of grassland. The results show that:(1)soil moisture content and bulk density increase due to pika disturbance; nutrient contents increase in the soil due to the influence of pika, organic matter and cation exchange capacity are the highest at the bare spot of the cave;(2)the soil enzyme activities in four types of sites are different; the highest urease content was 3.31 mg/(d·g)at the bare spot of the cave mouth, and phosphatase and catalase increase significantly in all three types of ground surface disturbed by pika; to summarize, the disturbance of pika can alter the physical-chemical properties of the grassland soil in Qinghai-Tibet Plateau;(3)through the evaluation of soil quality of different surface types, the scores are as follows: type Ⅲ>typeⅣ>typeⅡ >type I; the soil quality in the bare spot of the hole where the pika frequently moves is better; the disturbance of pika has a significant effect on soil properties, and there are differences in soil quality among different surface types. The results of this study are of great importance to further understand the effects of plateau pika disturbance on the soil properties of alpine grassland, and can provide reference for the management and protection of the Qinghai-Tibet Plateau ecosystem.