Ecological restoration of a copper polluted vineyard: Long-term impact of farmland abandonment on soil bio-chemical properties and microbial communities

2016 ◽  
Vol 182 ◽  
pp. 37-47 ◽  
Author(s):  
Luciano Cavani ◽  
Luisa M. Manici ◽  
Francesco Caputo ◽  
Elisabetta Peruzzi ◽  
Claudio Ciavatta
Keyword(s):  
Microbial Communities ◽  
Ecological Restoration ◽  
Chemical Properties ◽  
Farmland Abandonment ◽  
Long Term Impact

scholarly journals The Effect of Prolonged Irrigation on Soil-amelioration State of the Aley River Steppe in Altai Krai

2019 ◽  
Author(s):  
Roman Gornostal
Keyword(s):  
Irrigation System ◽  
Chemical Properties ◽  
Crop Productivity ◽  
Soil Amelioration ◽  
Chemical Properties Of Soils ◽  
Long Term Impact ◽  
Literary Materials ◽  
The Impact ◽  
Water And Salt Balance

On the basis of many years of research conducted at the Aley River irrigation system and generalization of literary materials, the impact of irrigation on soil fertility, composition and properties of chernozemic, meadow chernozemic and chernozemic meadow soils, their water and salt regime, and crop productivity has been established. A comprehensive assessment of the long-term impact of irrigation on the change in the hydrophysical and chemical properties of soils and the ecological and reclamation state of the irrigated area is given. The influence of long-term irrigation on the nature and direction of the dynamics of groundwater and salt levels in soils is revealed. The water and salt balance of soils has been compiled, depending on the characteristics and duration of irrigation. It is proved that in conditions of insufficient drainage of the territory, non-compliance with scientifically grounded irrigation regimes, rational irrigation techniques, violation of agricultural technology and crop rotation during long-term irrigation leads to the deterioration of some properties of soils, their salinization and alkalination. Regularities and changes in soil-amelioration conditions during prolonged irrigation of land have been established.

scholarly journals Long-Term Impact of Conservation Agriculture on Chemical Properties of Soil

2019 ◽  
Vol 8 (07) ◽  
pp. 2144-2153
Author(s):  
Dipti Kumari ◽  
Sunil Kumar ◽  
Hena Parveen ◽  
Amit Kumar Pradhan ◽  
Sanjay Kumar ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Conservation Agriculture ◽  
Long Term Impact ◽  
Properties Of Soil

The long-term impact of two pasture production systems on soil acidification in southern Queensland

1998 ◽  
Vol 38 (4) ◽  
pp. 335 ◽  
Author(s):  
A. D. Noble ◽  
R. J. Jones ◽  
C. H. Thompson ◽  
R. M. Jones
Keyword(s):  
Nitrogen Cycle ◽  
Production Systems ◽  
Chemical Properties ◽  
Soil Samples ◽  
Pasture Production ◽  
Exchangeable Acidity ◽  
Intensively Managed ◽  
Long Term Impact ◽  
The Impact

Summary. Soil samples to a depth of 90 cm were collected in 1996 from adjacent 1 ha paddocks which had either been established to a leucaena-based or nitrogen-fertilised and irrigated pasture system in 1960 at Samford, south-eastern Queensland, to assess the impact of these production systems on soil chemical properties. The chemical properties were compared with those of soil samples collected from the site in 1960. Soil pH under both the nitrogen-fertilised and leucaena-based systems have declined significantly to a depth of 40 cm against that of the soil samples collected in 1960. However, the extent of acidification was higher under the more intensively managed nitrogen-fertilised system compared with the leucaena-based system. The acidification rates for the nitrogen-fertilised and leucaena-based pasture systems over the 36-year period are 5.1 and 1.0 kmol H+/ha.year, respectively, and are similar to values observed under annual pasture systems of temperate southern Australia. Associated with the decline in pH there was a decline in exchangeable Ca2+ in the nitrogen-fertilised system and a corresponding increase in exchangeable acidity. The contribution of the nitrogen cycle to net acidification for the leucaena-based pasture system was estimated to account for 20% of the total net acid addition. This result is discussed in the light of a similar study undertaken in the semi-arid tropics where the contribution of the nitrogen cycle by a similar leucaena-based system was estimated to be 78% of the net acidification.

scholarly journals Long-Term Coffee Monoculture Alters Soil Chemical Properties and Microbial Communities

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Qingyun Zhao ◽  
Wu Xiong ◽  
Yizhang Xing ◽  
Yan Sun ◽  
Xingjun Lin ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Chemical Properties ◽  
Soil Chemical Properties

scholarly journals Long-term impact of hydrological regime on structure and functions of microbial communities in riverine wetland sediments

2013 ◽  
Vol 85 (2) ◽  
pp. 211-226 ◽  
Author(s):  
Arnaud Foulquier ◽  
Bernadette Volat ◽  
Marc Neyra ◽  
Gudrun Bornette ◽  
Bernard Montuelle
Keyword(s):  
Microbial Communities ◽  
Hydrological Regime ◽  
Riverine Wetland ◽  
Long Term Impact ◽  
Structure And Functions

Crisis Phones - Suicide Prevention Versus Suggestion/Contagion Effects

Crisis ◽  
2015 ◽  
Vol 36 (3) ◽  
pp. 220-224 ◽  
Author(s):  
Steven Stack
Keyword(s):  
Suicide Prevention ◽  
Contagion Effects ◽  
Long Term Impact

Abstract. Background: There has been no systematic work on the short- or long-term impact of the installation of crisis phones on suicides from bridges. The present study addresses this issue. Method: Data refer to 219 suicides from 1954 through 2013 on the Skyway Bridge in St. Petersburg, Florida. Six crisis phones with signs were installed in July 1999. Results: In the first decade after installation, the phones were used by 27 suicidal persons and credited with preventing 26 or 2.6 suicides a year. However, the net suicide count increased from 48 in the 13 years before installation of phones to 106 the following 13 years or by 4.5 additional suicides/year (t =3.512, p < .001). Conclusion: Although the phones prevented some suicides, there was a net increase after installation. The findings are interpreted with reference to suggestion/contagion effects including the emergence of a controversial bridge suicide blog.

Long-Term Impact of Participation in the Adolescent Diversion Project

2009 ◽  
Author(s):  
Jenna L. Claes ◽  
Sean S. Hankins ◽  
J. K. Ford
Keyword(s):  
Long Term Impact
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