Variations in vegetative characteristics of Deyeuxia angustifolia wetlands following natural restoration in the Sanjiang Plain, China

An, Yu; Gao, Yang; Tong, Shuo; Lü, Xianguo; Wang, Xuehong; Wang, Guodong; Liu, Xiaohui; Zhang, Dongjie

doi:10.1016/j.ecoleng.2017.12.022

Cited by 17 publications

(9 citation statements)

References 40 publications

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“…Compared with the forest types, wetland TOC, AN, and AP were considerably higher (Table 2). Aboveground vegetation affects soil physico‐chemical characteristics including the pH, soil organic matter, soil structure, and microclimate (An et al., 2018). Changes of these parameters can have an impact on the physical as well as metabolic niche variety in soils, leading to various constitutions of microbial communities (Hartmann et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Soil physicochemical properties drive the variation in soil microbial communities along a forest successional series in a degraded wetland in northeastern China

Sui

Zhang

Frey

et al. 2021

Ecology and Evolution

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The Sanjiang Plain is the biggest freshwater wetland locating in northeastern China. Due to climate change and human activities, that wetland has degraded to a successional gradient from the original flooded wetland to dry shrub vegetation and a forest area with lower ground water level, which may result in changes in soil microbiologic structure and functions. The present study investigated the microbial diversity and community structure in relation to soil properties along that successional gradient. The soil physico‐chemical properties changed significantly with degradation stage. The Shannon diversity index of both soil bacteria (5.90–6.42) and fungi (1.7–4.19) varied significantly with successional stage (both p < .05). The community structures of soil bacteria and fungi in the early successional stages (i.e., the wetland) were significantly determined by water content, total nitrogen, and available nitrogen concentrations in soils, while those in the later successional stages (i.e., forests) were significantly structured by soil organic carbon, soil pH, and available phosphorus concentrations. These results suggest that the soil microbial structure is mainly determined by soil properties rather than by plant community such as plant species composition along successional stages.

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Section: Discussionmentioning

confidence: 99%

Soil physicochemical properties drive the variation in soil microbial communities along a forest successional series in a degraded wetland in northeastern China

Sui

Zhang

Frey

et al. 2021

Ecology and Evolution

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“…The important value of dominant species in abandoned croplands during the restoration process changed significantly. Species diversity also became more and more close to the un-interrupted wetlands (An et al, 2018). Wetland species increased, but terrestrial species reduced to zero as restoration time increasing.…”

Section: Plant Diversity Changes During the Process Of Reclaimed Wetlmentioning

confidence: 92%

Plant Diversity Performance After Natural Restoration in Reclaimed Deyeuxia angustifolia Wetland

Wang

Tong

et al. 2019

Chin. Geogr. Sci.

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Deyeuxia angustifolia wetlands were widely distributed in the Sanjiang Plain in Northeast China. Due to strong demand for food production, large-area wetlands were reclaimed to farmlands, which threatened regional ecological security greatly. Since the 21th century, returning farmlands to wetlands was widely adopted for natural restoration in the Sangjiang Plain. As the first reflection of wetland restoration, vegetation succession of restored D. angustifolia wetlands should be fully assessed. In this study, vegetation investigation was carried out in three restored D. angustifolia wetlands with 5, 8 and 12 yr restoration, respectively. Meanwhile, a natural D. angustifolia wetland was selected as reference wetland. Results showed that community composition changed greatly and there was visible community succession. Community dominant species changed from composite to gramineae as restoration time increasing. At first, weeds community appeared in the restored wetlands, especially the xerophytes developed to the pioneer species rapidly. And then, mesophytes and wetland species became the dominant species in the restored wetlands. Finally, wetland species, especially D. angustifolia, occupied the dominant position of restored community. Shannon-wiener index (H) and Simpson index (D) both decreased to close to natural D. angustifolia wetlands. Compared with natural D. angustifolia wetland, species composition and diversity in restored wetlands were more complex and higher. As restoration time increasing, there were not significant differences between community characteristics of restored wetlands and natural wetland. All these suggested that vegetation in reclaimed D. angustifolia wetland could be restored naturally, but its restored period is 10 yr at least. From another angle, it is important to protect current natural wetlands.

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“…In recent years, the presence of Carex tussock and Phragmites in the marsh have declined dramatically and disappeared in some parts of Northeast China due to land drainage and the intensification of agriculture [14,15]. To cope with this problem, wetland management departments in China have recently attempted to implement wetland restoration practices by restoring the artificial vegetation and effecting reconstruction by introducing the natural vegetation for recolonization after the recovery of hydrological conditions [14,16,17]. The restoration of wetlands is a promising strategy for reestablishing the ecological structure, function, and biodiversity of the aboveground part of degraded wetlands [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…To cope with this problem, wetland management departments in China have recently attempted to implement wetland restoration practices by restoring the artificial vegetation and effecting reconstruction by introducing the natural vegetation for recolonization after the recovery of hydrological conditions [14,16,17]. The restoration of wetlands is a promising strategy for reestablishing the ecological structure, function, and biodiversity of the aboveground part of degraded wetlands [17,18]. However, few studies have considered whether the ecological characteristics of the associated below-ground microbial communities respond to deteriorated or restored wetlands [19].…”

Section: Introductionmentioning

confidence: 99%

Disentangling Responses of the Subsurface Microbiome to Wetland Status and Implications for Indicating Ecosystem Functions

et al. 2021

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In this study, we analyzed microbial community composition and the functional capacities of degraded sites and restored/natural sites in two typical wetlands of Northeast China—the Phragmites marsh and the Carex marsh, respectively. The degradation of these wetlands, caused by grazing or land drainage for irrigation, alters microbial community components and functional structures, in addition to changing the aboveground vegetation and soil geochemical properties. Bacterial and fungal diversity at the degraded sites were significantly lower than those at restored/natural sites, indicating that soil microbial groups were sensitive to disturbances in wetland ecosystems. Further, a combined analysis using high-throughput sequencing and GeoChip arrays showed that the abundance of carbon fixation and degradation, and ~95% genes involved in nitrogen cycling were increased in abundance at grazed Phragmites sites, likely due to the stimulating impact of urine and dung deposition. In contrast, the abundance of genes involved in methane cycling was significantly increased in restored wetlands. Particularly, we found that microbial composition and activity gradually shifts according to the hierarchical marsh sites. Altogether, this study demonstrated that microbial communities as a whole could respond to wetland changes and revealed the functional potential of microbes in regulating biogeochemical cycles.

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Variations in vegetative characteristics of Deyeuxia angustifolia wetlands following natural restoration in the Sanjiang Plain, China

Cited by 17 publications

References 40 publications

Soil physicochemical properties drive the variation in soil microbial communities along a forest successional series in a degraded wetland in northeastern China

Soil physicochemical properties drive the variation in soil microbial communities along a forest successional series in a degraded wetland in northeastern China

Plant Diversity Performance After Natural Restoration in Reclaimed Deyeuxia angustifolia Wetland

Disentangling Responses of the Subsurface Microbiome to Wetland Status and Implications for Indicating Ecosystem Functions

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