scholarly journals Bacterial and archaeal taxa are reliable indicators of soil restoration across distributed calcareous grasslands

2020 ◽  
Author(s):  
Melanie Armbruster ◽  
Tim Goodall ◽  
Penny R. Hirsch ◽  
Nick Ostle ◽  
Jeremy Puissant ◽  
...  
Keyword(s):  
Soil Restoration ◽  
Calcareous Grasslands

Management of Water Cycle: An Approach to Urban Ecology

1992 ◽  
Vol 27 (2) ◽  
pp. 221-238 ◽  
Author(s):  
W. Ripl
Keyword(s):  
Rural Areas ◽  
Urban Areas ◽  
Water Cycle ◽  
Cooling System ◽  
Thermal Power ◽  
Sewage Treatment ◽  
Balance Sheet ◽  
River System ◽  
Soil Restoration ◽  
Environmental Damage

Abstract Densely populated urban areas, which have developed over the last century, depend heavily on centralized water supply, sewage treatment plants, and hydroelectric or thermal power generation with vast demand of cooling water. Considerable areas have been drained or sealed, and the short-circuited water cycle has been distorted. Large rivers have been converted to shipping canals with the permanent risk of accidental pollution. Technical means such as sewage treatment, air filters, emission control and lake and soil restoration measures have contributed to correct the environmental damage. However, a balance sheet for irreversible matter losses (mainly base cation charges) from the urbanized areas and the surrounding landscape into the sea shows ever-increasing trends. These losses are destabilizing the ecosystems. In this paper, management of the water cycle in urban areas, together with the coupled matter cycles, is discussed. Particular reference is given to Metropolitan Berlin, with a network of shipping canals, which move biologically treated waste, containing base cations and nutrients to the surrounding rural areas. This could create manageable productive wetlands and re-establish soil fertility. At the same time, the natural cooling system close to the urban areas will be improved by providing more areas with permanent vegetation. In addition, reduction of the present large oscillations of the groundwater table, resulting from groundwater pumping and its recharge with less polluted surface water, is contemplated. The widely used shoreline infiltration of the Havel River should then be eliminated and the severe damage of the littoral vegetation in large sections of the Havel River system be avoided.

scholarly journals Sludge amendment accelerating reclamation process of reconstructed mining substrates

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dan Li ◽  
Ningning Yin ◽  
Ruiwei Xu ◽  
Liping Wang ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Soil Structure ◽  
Aggregate Stability ◽  
Soil Aggregate ◽  
Soil Reclamation ◽  
Soil Restoration ◽  
Total Biomass ◽  
Soil Aggregate Stability ◽  
Mining Soil ◽  
Positive Correlations ◽  
Reclamation Process

AbstractWe constructed a mining soil restoration system combining plant, complex substrate and microbe. Sludge was added to reconstructed mine substrates (RMS) to accelerate the reclamation process. The effect of sludge on plant growth, microbial activity, soil aggregate stability, and aggregation-associated soil characteristics was monitored during 10 years of reclamation. Results show that the height and total biomass of ryegrass increases with reclamation time. Sludge amendment increases the aggregate binding agent content and soil aggregate stability. Soil organic carbon (SOC) and light-fraction SOC (LFOC) in the RMS increase by 151% and 247% compared with those of the control, respectively. A similar trend was observed for the glomalin-related soil protein (GRSP). Stable soil aggregate indexes increase until the seventh year. In short, the variables of RMS determined after 3–7 years insignificantly differ from those of the untreated sample in the tenth-year. Furthermore, significant positive correlations between the GRSP and SOC and GRSP and soil structure-related variables were observed in RMS. Biological stimulation of the SOC and GRSP accelerates the recovery of the soil structure and ecosystem function. Consequently, the plant–complex substrate–microbe ecological restoration system can be used as an effective tool in early mining soil reclamation.

Restoration measures foster biodiversity of important primary consumers within calcareous grasslands

2021 ◽  
Vol 256 ◽  
pp. 109058
Author(s):  
Felix Helbing ◽  
Thomas Fartmann ◽  
Dominik Poniatowski
Keyword(s):  
Calcareous Grasslands ◽  
Primary Consumers ◽  
Restoration Measures

The seed banks of English lowland calcareous grasslands along a restoration chronosequence

Plant Ecology ◽  
2009 ◽  
Vol 208 (2) ◽  
pp. 199-211 ◽  
Author(s):  
Kate C. Fagan ◽  
Richard F. Pywell ◽  
James M. Bullock ◽  
Rob H. Marrs
Keyword(s):  
Seed Banks ◽  
Calcareous Grasslands ◽  
Restoration Chronosequence

Are Calcareous Grasslands in the UK under Threat from Nitrogen Deposition?--An Experimental Determination of a Critical Load

1995 ◽  
Vol 83 (5) ◽  
pp. 823 ◽  
Author(s):  
E. J. Wilson ◽  
T. C. E. Wells ◽  
T. H. Sparks
Keyword(s):  
Critical Load ◽  
Experimental Determination ◽  
Nitrogen Deposition ◽  
Calcareous Grasslands ◽  
The Uk

scholarly journals Effects of fencing on vegetation and soil restoration in a degraded alkaline grassland in northeast China

2013 ◽  
Vol 6 (4) ◽  
pp. 478-487 ◽  
Author(s):  
Qiang Li ◽  
DaoWei Zhou ◽  
YingHua Jin ◽  
MinLing Wang ◽  
YanTao Song ◽  
...  
Keyword(s):  
Northeast China ◽  
Soil Restoration

scholarly journals RESTORATION OF SOILS CONTAMINATED WITH RADIONUCLIDES BY PHYTOREDOMEDIATION METHOD

2020 ◽  
pp. 151-155
Author(s):  
I.V. Udalov ◽  
V.A. Peresadko ◽  
O.V. Polevich ◽  
A.V. Kononenko
Keyword(s):  
Model Experiment ◽  
Toxic Elements ◽  
Vegetation Period ◽  
Soil Restoration ◽  
Soil Conditions ◽  
Geochemical Barriers ◽  
Artificial Geochemical Barriers

The possibility of soil restoration by means of phytotechnology and artificial geochemical barriers (GB) from contamination by radionuclides (RN) and toxic elements (TE) is methodologically substantiated. For this purpose, a number of artificial GBs were created at a special landfill within the framework of a model experiment. The process of formation and development of barriers, their parameters are investigated. Agrophytocenosis cultures were selected for optimal phytostabilization of soil conditions. The study of phytoextraction of TE and RN by agrophytocenosis cultures during one complete vegetation period was performed. Some selectivity of the investigated plants for extraction of different TEs and RNs from soils and material of barriers was revealed.

scholarly journals Restoring the Soils of Nauru: Plants as Tools for Ecological Recovery

2021 ◽  
Author(s):  
◽  
Alexander Feary
Keyword(s):  
Biomass Production ◽  
Soil Type ◽  
Biomass Productivity ◽  
Well Being ◽  
Field Trials ◽  
Small Degree ◽  
Tissue Type ◽  
Soil Restoration ◽  
Landscape Degradation ◽  
Germination Success

<p>The restoration of Nauru’s mined areas is fundamental to the future wellbeing of the people and ecosystems of Nauru. Extensive open cast phosphate mining on Nauru over the last 100 years has led to soil losses and landscape degradation to the extent that over 70% of this South-Western Pacific island state is now uninhabitable and almost all productive land has been lost. Significant landscape degradation has occurred and as a consequence the soils that remain are insufficient in volume and quality to achieve the Government’s restoration goals which support the long-term development of Nauru and the well-being of its people. The aim of this research is to evaluate aspects of cover-crop use as a means for soil restoration in Nauru. This research evaluates biomass production, phytoremediation potential, and germination success for a range of species in Nauruan soils. Field trials exploring biomass production and cadmium phytoextraction were performed, as was an experiment assessing the effects of cadmium on germination success. It was found that, in the circumstances assessed, biomass productivity was significantly determined by species, mulch use, soil type, and to a small degree – cadmium. Phytoextraction was significantly determined by tissue type. Germination success was not determined by soil cadmium, but soil type was a significant factor.</p>

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