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Characteristics of soil faunal restoration after fallow in clear-cutting forestland of Chinese fir plantation*(PDF)

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

Issue:
2019 06
Page:
1-11
Research Field:
Articles
Publishing date:

Info

Title:
Characteristics of soil faunal restoration after fallow in clear-cutting forestland of Chinese fir plantation*
Author(s):
YANG Xu1 2 LU Qi1** HUANG Ke2
1 Institute of Desertification Research, Chinese Academy of Forestry, Beijing 100091, China
2Hubei Ecology Polytechnic College, Wuhan 430200, China
3Huitong Experimental Station of Forest Ecology , Huitong 418300, China
Keywords:
Chinese fir plantation fallow blanks of clear-cutting natural restoration soil fauna community characteristic
CLC:
-
PACS:
DOI:
10.19675/j.cnki.1006-687x.2019.02039
DocumentCode:

Abstract:
Taking fallow blanks of clear-cutting Chinese fir (Cunninghamia lanceolate (Lamb.) Hook.) plantation (FF) as research object and Chinese fir plantation (FR) and secondary evergreen broad-leaved forest (SF) as the controls, characteristics of Soil faunal community of Chinese fir plantation, fallow blanks of clear-cutting Chinese fir plantation and secondary evergreen broad-leaved forest were investigated in Huitong of Hunan Province. Results showed that the composition of soil faunal community in the fallow blanks of clear-cutting Chinese fir plantation and secondary evergreen broad-leaved forest showed a higher similarity after 20 years being fallowed in Chinese fir plantation, among which the similarity Jaccard coefficient between the fallow blanks of clear-cutting Chinese fir plantation and secondary evergreen broad-leaved forest was 0.64, that Jaccard coefficient between the Chinese fir plantation and secondary evergreen broad-leaved forest was 0.58, and that Jaccard coefficient between the fallow blanks of clear-cutting Chinese fir plantations and secondary evergreen broad-leaved forest was 0.57. After fallow in clear-cutting forestland of Chinese fir plantation, Abundance of soil faunal community appeared significantly increase from 52 916.1 ind/m2 in Chinese fir plantation to 86 618.7 ind/m2 in the fallow blanks of clear-cutting Chinese fir plantation (P = 0.03), that was close to 78298.4 ind/m2 in the evergreen broad-leaved forest ( P = 0.75). The increases were mainly attributed to the increase of Nematoda, Enchytraeidae, Acarina and Collembola, which contributed 62.84%, 26.57%, 4.74% and 2.26% of the increase respectively. However, the diversity of soil faunal community changed slowly. The Shannon diversity index increased by 25.71% from Chinese fir plantation to the fallow blanks of clear-cutting Chinese fir plantation, which reached 88.88% of the secondary evergreen broad-leaved forest. By comparing the abundance and diversity of soil fauna of the three forest types , it is obvious that the restoration rate of diversity of soil fauna is slower than that of abundance. Since the community composition, diversity and abundance characteristics of the abandoned land are closer to the secondary evergreen broad-leaved forest than the Chinese fir plantation forest, results support the increase of ecosystem instability promotes the recovery soil organism.

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Last Update: 2019-06-19