Nematodes as indicators of soil recovery in tailings of a lead/zinc mine

Shao, Yuanhu; Zhang, Weixin; Shen, Juecui; Zhou, Lixia; Hong, Xianpei; Shu, Wen‐Sheng; Ferris, H.; Fu, Shenglei

doi:10.1016/j.soilbio.2008.04.014

Cited by 86 publications

(47 citation statements)

References 30 publications

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“…Prismatolaimus (cp-3) Tylencholaimus (cp-4) Mononchus (cp-4) was only found in W, it is indicated that the wheat rhizosphere soil in wheat/jujube intercropping system was less suitable for some genera with cp-3 and cp-4 guilds. This result is consistent with previous study which suggested that the density of cp-3, cp-4, cp-5 nematodes were negatively correlating with the pollutants (Shao et al, 2008;Korthals et al, 2009). The lower number of total nematodes in JW, mainly refl ected in less abundance of bacterivores and less abundance of cp-1 and cp-2 groups in JW.…”

Section: Discussionsupporting

confidence: 93%

Changes of nematode community under monoculture wheat and wheat/jujube intercropping system in Xinjiang, Northwest China

2015

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SummaryNematode communities in the soils of wheat (Triticum aestivum Linn.) rhizosphere grown alone and grown in jujube (Ziziphus jujuba Mill.) orchard were investigated for three years in Hetian arid area, Xingjiang Uygur Autonomous Region, northwest of China. The results showed that eu-dominant families were Rhabditidae, Cephalobidae and Aphelenchidae among 15 families and 19 genera. Nematode abundance in wheat rhizosphere soil was smaller in wheat/jujube intercropping system, mainly because of lower numbers of bacterial feeders and fungal feeders. Besides, the nematode numbers of cp-1 and cp-2 (cp, colonizer-persister) guilds were signifi cantly lower in wheat/jujube intercropping system than that in monoculture wheat system, due to the markedly lower numbers of Rhabditidae and Cephalobidae, although those of cp-3 and cp-4 guilds had no signifi cant differences between monoculture and intercropping systems. Shannon-Weaver index (H'), genus dominance index (Ig) and structural index (SI), represented soil food web diversity and structure, had no differences between monoculture and intercropping systems. Signifi cantly lower values of Wasilewska index (WI) and PPI/MI in monoculture wheat than in intercropping system. It was concluded that the soil status in monoculture wheat system exhibited better soil ecosystem in compared with wheat/ jujube intercropping system.

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Section: Discussionsupporting

confidence: 93%

Changes of nematode community under monoculture wheat and wheat/jujube intercropping system in Xinjiang, Northwest China

2015

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“…They are taxonomically diverse and are represented in multiple trophic levels. Consequently, nematodes have been widely used as indicators of the regeneration of the soil faunal community and ecosystem remediation (Shao et al, 2008). In our study, the nematode density increased gradually from zero in the untreated soils to 2.3 g -1 of soil after 10 years of restoration, when the plant parasites reached their highest relative abundance, which indicates that these two parameters might be valid markers of recovery (Figure 2).…”

Section: Discussionsupporting

confidence: 50%

“…Nematodes are taxonomically diverse and represented on multiple trophic levels. Consequently, nematodes have been widely used as indicators of regeneration of the soil faunal community and as markers of ecosystem recovery after the remediation of polluted soils (Shao et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of Alnus nepalensis cultivation on soil biological and physicochemical properties during restoration near a phosphate smelter in Kunyang, Yunnan Province, SW China

Fang

Meng

et al. 2013

J. Soil Sci. Plant Nutr.

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In this study, soil physicochemical properties, microbial community structure and nematode assemblages were investigated to assess the soil qualities of an in situ phosphate mine after up to 10 years of revegetation with the nurse plant Alnus nepalensis. Our results showed that A. nepalensis cultivation significantly decreased the total P concentration, suggesting the high remediation potential. Moreover, A. nepalensis improved the levels of soil-available N and K and promoted the growth of microorganisms, as suggested by the 1.45-and even 3.26-fold increase in microbial carbon (MBC) and nitrogen (MBN), respectively, after 10 years of remediation. Soil enzyme activities relating to C (β-glucosidase), N (urease) and P (acid phosphatase) were also stimulated. The sum of the indicator phospholipid fatty acids (PLFAs) and the Gram-positive and -negative bacteria also increased significantly after restoration. The nematode density increased gradually from zero in untreated soils to 2.3 g -1 of soil after 10 years of restoration, at which time the highest percentage of plant parasites was observed. Cluster analysis produced three clusters: cultivation for 0 and 1 years in cluster 1; 2, 3 and 4 years in cluster 2; and 5 and 10 years in cluster 3. These results showed that both the nutrient pools and the stability of the soil ecosystems in the revegetated soils were gradually reestablished and that the enzyme activities (β-glucosidase and urease), the microbial community (sum of PLFAs, G + : G -) and the nematode assemblage (density and plant parasite percentage) might be used as valid bioindicators for soil heath after contamination remediation.

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“…Soil nematodes are important invertebrates in soil ecosystem with profound effects on microbial community and organic matter decomposition (Anderson et al 1981;Freckman 1988;Yeates and Bongers 1999;Neher 2001;Fu et al 2005). Many studies suggest that nematodes are useful bioindicators in soil and aquatic ecosystems, especially for assessment of ecosystem health (Bongers and Ferris 1999;Ferris and Bongers 2006;Shao et al 2008). The relationship between indicator values to soil function and soil properties is well documented (Yeates et al 1993;Goralczyk 1998;Bongers and Ferris 1999;Ekschmitt et al 2001;Neher et al 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The relationship between indicator values to soil function and soil properties is well documented (Yeates et al 1993;Goralczyk 1998;Bongers and Ferris 1999;Ekschmitt et al 2001;Neher et al 2012). Nematodes early in ecological succession (Fu et al 2000) are relatively tolerant to contamination by heavy metal pollution in contrast to later successional taxa that are known to be sensitive to heavy metals (Bongers and Bongers 1998;Georgieva et al 2002;Shao et al 2008). Often, bacteria and bacterivorous nematodes are considered to be in an earlier stage of ecological succession than fungi and fungal-feeding nematodes.…”

Section: Introductionmentioning

confidence: 99%

Responses of soil microbial and nematode communities to aluminum toxicity in vegetated oil-shale-waste lands

et al. 2012

Self Cite

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Both soil nematodes and microorganisms have been shown to be sensitive bioindicators of soil recovery in metal-contaminated habitats; however, the underlying processes are poorly understood. We investigated the relationship among soil microbial community composition, nematode community structure and soil aluminum (Al) content in different vegetated aluminum-rich ecosystems. Our results demonstrated that there were greater soil bacterial, fungal and arbuscular mycorrhizal fungal biomass in Syzygium cumini plantation, greater abundance of soil nematodes in Acacia auriculiformis plantation, and greater abundance of soil predatory and herbivorous nematodes in Schima wallichii plantation. The concentration of watersoluble Al was normally greater in vegetated than nonvegetated soil. The residual Al and total Al concentrations showed a significant decrease after planting S. cumini plantation onto the shale dump. Acid extractable, reducible and oxidisable Al concentrations were greater in S. wallichii plantation. Stepwise linear regression analysis suggests the concentrations of water-soluble Al and total Al content explain the most variance associated with nematode assembly; whereas, the abundance of early-successional nematode taxa was explained mostly by soil moisture, soil organic C and total N rather than the concentrations of different forms of Al. In contrast, no significant main effects of either Al or soil physico-chemical characteristics on soil microbial biomass were observed. Our study suggests that vegetation was the primary driver on soil nematodes and microorganisms and it also could regulate the sensitivity of bio-indicator role mainly through the alteration of soil Al and physico-chemical characteristics, and S. cumini is effective for amending the Al contaminated soils.

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Nematodes as indicators of soil recovery in tailings of a lead/zinc mine

Cited by 86 publications

References 30 publications

Changes of nematode community under monoculture wheat and wheat/jujube intercropping system in Xinjiang, Northwest China

Changes of nematode community under monoculture wheat and wheat/jujube intercropping system in Xinjiang, Northwest China

Effect of Alnus nepalensis cultivation on soil biological and physicochemical properties during restoration near a phosphate smelter in Kunyang, Yunnan Province, SW China

Responses of soil microbial and nematode communities to aluminum toxicity in vegetated oil-shale-waste lands

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