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Response of soil mites to burning and reclamation in South Guizhou*(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2019 06
Page:
1-14
Research Field:
Articles
Publishing date:

Info

Title:
Response of soil mites to burning and reclamation in South Guizhou*
Author(s):
YANG Daxing1 2 LI Can 2 & YANG Maofa**
1 Guizhou Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, China
2 Guizhou Provincial Key Laboratory for Rare Animal and Economic Insects of the Mountainous Region, College of Biology and Environment Engineering, Guiyang University, Guiyang 550005, China)
Keywords:
soil mites disturbance resp onse Karst
CLC:
-
PACS:
DOI:
10.19675/j.cnki.1006-687x.2019.01012
DocumentCode:

Abstract:
Karst ecosystem is of poor stability and very sensitive to the disturbance, and it has always been the academic focus of attention. Its ecosystem structure and function has degenerated seriously under the influence of human disturbance in recent years. Soil mites are ideal bio-indicators for the status of below-ground ecosystems, but little is known about how soil mites respond to different disturbances in Karst region. To better understand how soil mites communities are impacted by the different disturbances in south Guizhou province, a survey of the soil mites community was conducted by Tullgren method at sites of burning plus reclamation, burning, farmland and natural forests from Oct. 2016 to Apr. 2017. A total of 5254 individuals were captured, belonging to 81 families, and the dominant group was Oppiidae and Mochlozetidae. The result of a principal component analysis(PCA) indicated that the community structure of soil mites differed obviously among different disturbances. The group number, individual density and Shannon-Wiener index(H’) of soil mites were significantly different in burning plus reclamation and natural forests, significant difference was also observed between the group number of soil mites in farming practices and natural forests , whereas the group number, individual density and Shannon-Wiener index(H’) of soil mites were not influenced by seasonal variation. Pearson correlation analysis showed that soil AP was significantly correlated with the density of soil mite community in a negative way . Based on these results, we concluded that disturbance frequency is one of the key factors to impact the distribution of soil mites , with the high-frequency disturbance affecting them more negatively than low-frequency, and for the high-frequency disturbance, double disturbances impact more negatively than the single disturbance.

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Last Update: 2019-04-12