The soil nematode community indicates the soil ecological restoration of the Pinus massoniana plantation gap replanted with Cinnamomum longipaniculatum

Ecological Indicators

Qingqing Lu¹  Hanbo Yang¹  Ya Zhang²  Lianghua Chen²  Yarong Gao³  Jing Wang³  Jiaojiao Tian⁴  Jian Zhang⁴  Jiujin Xiao⁵  Chengwei Tu⁵  Yang Liu⁵ 

[1] Ecology, College of Forestry, Sichuan Agricultural University, Chengdu 611130, China;Forestry Ecological Engineering in the Upper Reaches of Yangtze River Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China;Grassland Administration on Forest Resources Conservation and Ecological Safety in the Upper Reaches of the Yangtze River, Sichuan Agricultural University, Chengdu 611130, China;;Key Laboratory of National Forestry &;Institute of Forest &

关键词: Soil nematode;    Community characteristics;    Plantation;    Soil ecological restoration;   

DOI  :  

来源: DOAJ

【 摘 要 】

Interactions between aboveground and belowground ecosystems components modulate ecosystem functions. However, few studies have focused on the response of soil nematodes to plantation reconstruction. In this study, Cinnamomum longipaniculatum was planted in the gap of a Pinus massoniana plantation. Based on the size, center and edge of C. longipaniculatum patches, the characteristics of the soil nematode community were studied after 8 years of plantation reconstruction. The effect of the C. longipaniculatum plantation on the soil nematode community was related to patch size. The soil nematode community did not change significantly with increasing patch size above 30 m × 30 m. The soil recovered better in the patch center than at the edge, but the edge increased the diversity of soil nematodes with low C-P values. The experimental treatment increased the dominance of soil plant parasite nematodes and bacterivores, decreased the trophic diversity index, and increased the channel ratio, maturity index, enrichment index and structure index of soil nematodes, indicating that soil nutrient cycling improved and the diversity of the soil food web increased. After P. massoniana plantation gaps were replanted with C. longipaniculatum, the main soil properties that affected the soil nematode community were organic carbon, pH, water content and soil aggregate degree. In the soil nematode community, fungal nematodes had the strongest influence on omnivorous-predatory nematodes. Our study showed that the soil environment changed with vegetation and affected soil nematode groups, and soil nematodes effectively reflected soil ecological restoration after P. massoniana plantation gaps were replanted with C. longipaniculatum.

【 授权许可】

Unknown