Plant diversity, net primary productivity and soil nutrient contents of a humid subtropical grassland remained low even after 50 years of post-disturbance recovery from coal mining

Mylliemngap, Wishfully; Barik, Saroj Kanta

doi:10.1007/s10661-019-7688-5

Cited by 13 publications

(8 citation statements)

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“…However, in areas dominated by natural restoration, although the vegetation restoration effect is lower in the short term, it is stable over a long duration; this also indicates that more time is needed for natural restoration than for artificial restoration strategies. Artificial restoration strategies can bring ecological and socio‐economic effects through high‐intensity investment in the short term (Hai et al, 2007; Mylliemngap & Barik, 2019), but the restoration rate cannot be maintained for long periods of time. Regardless of resource endowment conditions, large‐scale and high‐density afforestation can achieve rapid vegetation coverage in the short term, but it can cause a series of environmental problems, such as excessive consumption of deep soil water and low plant survival rate (Fu et al, 2017; Jia et al, 2017; Stokes et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

“…For example, the soil quality of artificial forests and grasslands is slightly higher than that of natural restoration in the karst region of southwest China (Zhang, Xu, et al, 2019); additionally, the physical, chemical, and biological characteristics of soil in artificial forests and grasslands are better than those of soils that have undergone natural restoration in desertified sandy grasslands with poor and arid soils (Yuan et al, 2012). In addition, the rate of forest recovery via artificial restoration is significantly faster than that of natural restoration; this makes the former conducive to accelerating the restoration of degraded ecosystems (Hai et al, 2007; Mylliemngap & Barik, 2019; Zahawi et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Comparing the long‐term effects of artificial and natural vegetation restoration strategies: A case‐study of Wuqi and its adjacent counties in northern China

Zhang

2021

Land Degrad Dev

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The significant increase in vegetation coverage in northern China over the past two decades has attracted worldwide attention. Revegetation has been completed via artificial and natural restoration techniques, and the relative performance of each needs to be further explored. Although some studies have focused on the comparison between artificial and natural methods in vegetation restoration from a micro‐perspective, there is a lack of evidence at the regional scale. This study considers Wuqi County and its adjacent areas of the Loess Plateau in northern China as our study area. First, natural and artificial restoration areas were identified. Then, the restoration sustainability of different restoration strategies and the adjustment effect of climate factors in the relationship between vegetation restoration strategy choice and vegetation restoration sustainability were analyzed. We found that the vegetation restoration strategies employed varied between local jurisdictions. In areas dominated by artificial restoration, vegetation coverage increased over a short period, but the growth rate diminished in the long term. In comparison, in areas mainly dominated by natural restoration, although the growth rate of revegetation was not very high in the short term, it was stable in the long term. In addition, the impact of vegetation restoration strategies on vegetation restoration sustainability exhibited spatial heterogeneity, and the temperature, humidity, and wind speed further affected strategy outcomes. This study provides a new perspective for vegetation restoration strategy evaluation and is expected to serve as a reference for the optimization of relevant ecological policies in the future.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparing the long‐term effects of artificial and natural vegetation restoration strategies: A case‐study of Wuqi and its adjacent counties in northern China

Zhang

2021

Land Degrad Dev

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“…An et al analyzed the carbon sink in the Jiawang mining area in Xuzhou and found that coal mining weakened the carbon sink capacity of the regional ecosystem, and the carbon sink capacity of vegetation decreased by 10.23% from 1990 to 2010, mainly due to the reduction in vegetation area caused by mining [55]. Mylliemngap et al found that removal of vegetation prior to coal mining and dumping reduces vegetation density, resulting in a 30% drop in grassland NPP [56]. Yang et al studied the NPP of open pit coal mines in Inner Mongolia, China, and reported that when the intensity of mining activities was the highest, there was a significant inhibitory effect on NPP [57].…”

Section: Effects Of Mining Activities On Npp Of Vegetationmentioning

confidence: 99%

Study on Ecological Loss in Coal Mining Area Based on Net Primary Productivity of Vegetation

Bai

Yang

et al. 2022

Land

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Opencast mining contributes to the severe disturbance of vegetation and serious damage to the ecological environment. Scientific assessment of the ecological losses may provide guidance for the sustainable land use in mining areas. This study uses the Carnegie Ames Stanford Approach (CASA) model to estimate the net primary productivity (NPP) of vegetation in the Pingshuo mining area from 2006 to 2020 and uses statistical analysis and mathematical models to study the impact of mining and land reclamation on NPP. The results show that NPP decreased slowly at a rate of 0.809 gC/(m2·month) per year. In 2006, the urban area of Pinglu and the opencast coal mining area were located in the western part of the study area, while the eastern part was distributed with a large amount of grassland, forested and cultivated land, and the NPP showed a high pattern in the east and low in the west. With the continued eastward movement of Antaibao and Anjialing mining areas, as well as the construction and continuous westward expansion of the East opencast mine, the pits of all three opencast mines moved to a central location in 2020, changing the spatial distribution of NPP to high in the surroundings and low in the middle. The NPP within the three opencast mines decreased significantly, but the change in NPP increased from −7.34 gC/(m2·month) to 7.15 gC/(m2·month) as the reclamation area increased, indicating that mining increased ecological losses while land reclamation mitigated them. The variation of NPP within 600 m outside the mining area is 2.06~7.45 gC/(m2·month), and 0.11~1.00 gC/(m2·month) from 600 m to 1000 m, indicating that NPP is sensitive to the influence of mining. The results may provide guidance for further analysis of the impact of mining on local environments and exploration of more appropriate land reclamation measures.

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“…The relationships between nutrient supply, plant species richness, and productivity are complex and vary among different wetland ecosystems. Many research studies showed that soil nutrients have a critical role in limiting both plant species diversity and productivity in wetlands and other ecosystems [18,[20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Variation in Plant Community Composition and Biomass to Macro and Micronutrients and Salinity across Egypt’s Five Major Coastal Lakes

et al. 2022

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To better assess the relationship between excess nutrient runoff and plant species diversity in the Egyptian northern coastal lakes, the relationships between aboveground biomass, species diversity, and both micro and macronutrient concentrations in sediment, water, and plant materials were investigated. A total of 38 sampling sites were established for the five Egyptian northern lakes (8 for Bardawil, 10 for Manzala, 8 for Burullus, and 6 for each of Edku and Mariut). Sediment, water, and plant materials were collected and analyzed for both micro and macronutrients including nitrogen (N), phosphorus (P), sulfur (S), magnesium (Mg), calcium (Ca), potassium (K), iron (Fe), boron (B), sodium (Na), and aluminum (Al). Based on the Sørensen similarity index, Burullus and Mariut lakes were very similar (0.70) in their vegetation composition, while Bardawil Lake had no similarity with the rest of the lakes. In sediment, Mariut Lake had the highest total P concentrations (1.3 g kg−1), while Bardawil Lake had the lowest (0.3 g kg−1). Bardawil, a hypersaline lake, had the highest concentrations for both Na and B (9.6 and 0.1 g kg−1, respectively). Among the deltaic lakes, Mariut Lake water bodies had the lowest plant species richness. The current study indicated that the excessive agricultural and industrial nutrient runoff had a greater impact on the nutrient distribution pattern and negatively impacted plant species diversity at the Egyptian coastal lakes. An integrated management plan, including establishing more pretreatment facilities for runoff and wastewater, should be implemented to reduce the nutrient loads from the main industrial and agricultural runoff sources. Moreover, periodic monitoring and assessment for nutrient runoff reaching the lakes are necessary to help reduce eutrophication levels.

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Plant diversity, net primary productivity and soil nutrient contents of a humid subtropical grassland remained low even after 50 years of post-disturbance recovery from coal mining

Cited by 13 publications

References 50 publications

Comparing the long‐term effects of artificial and natural vegetation restoration strategies: A case‐study of Wuqi and its adjacent counties in northern China

Comparing the long‐term effects of artificial and natural vegetation restoration strategies: A case‐study of Wuqi and its adjacent counties in northern China

Study on Ecological Loss in Coal Mining Area Based on Net Primary Productivity of Vegetation

Variation in Plant Community Composition and Biomass to Macro and Micronutrients and Salinity across Egypt’s Five Major Coastal Lakes

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