Long-term agricultural land use affects chemical and physical properties of soils from Southwest Saskatchewan

Author(s):  
Barbara Cade-Menun ◽  
Luke Bainard ◽  
Kerry LaForge ◽  
Mike Schellenberg ◽  
Bill Houston ◽  
...  
2018 ◽  
Vol 36 (4) ◽  
pp. 567-575
Author(s):  
Hee-Rae Cho ◽  
Yong-Seon Zhang ◽  
Kyung-Hwa Han ◽  
Jung-Hun Ok ◽  
Seon-Ah Hwang ◽  
...  

Geoderma ◽  
2014 ◽  
Vol 235-236 ◽  
pp. 290-299 ◽  
Author(s):  
Katarína Chrenková ◽  
Jorge Mataix-Solera ◽  
Pavel Dlapa ◽  
Victoria Arcenegui

Groundwater provides over 30% of developed supplies of potable water in Britain. The outcrops of the important aquifers form extensive tracts of agricultural land. Groundwater resources largely originate as rainfall that infiltrates this land. During the 1970s, growing concern about rising, or elevated, groundwater nitrate concentrations, in relation to current drinking water standards, stimulated a major national research effort on the extent of diffuse pollution resulting from agricultural land-use practices. The results presented derive from intensive and continuing studies of a number of small groundwater catchments in eastern England. It is in this predominantly arable region that the groundwater nitrate problem is most widespread and severe. The distribution of nitrate in the unsaturated and saturated zones of the aquifers concerned is summarized. These data have important implications for the water-supply industry, but their interpretation is discussed primarily in relation to what can be deduced about both the recent and long-term histories of leaching from the more permeable agricultural soils.


2013 ◽  
Vol 12 ◽  
pp. 40-47
Author(s):  
Jitka Horáčková ◽  
Lucie Juřičková

This paper presents a research of the floodplain mollusc communities of the Ploučnice River (Elbe tributary, North Bohemia, Czech Republic). Altogether, 66 mollusc species (65 species of gastropods, one species of bivalve) were recorded in the 35 floodplain forest sites during the research between 2007 and 2011, representing 27% of the total Czech malacofauna. More than a half of all species represents the common forest species (52% of all recorded species) with some rare woodland species as Aegopinella nitidula, Daudebardia rufa, Macrogastra ventricosa, Oxychilus depressus, O. glaber and two endangered species Clausilia bidentata and Daudebardia brevipes. Rare wetland species protected by the NATURA system Vertigo angustior and vulnerable V. antivertigo were also found. The occurrence of these rare species (two of them endangered, three vulnerable, and 11 near threatened) makes the Ploučnice river alluvium as an important mollusc refugium of prime conservation importance in this fragmented Czech landscape of long-term agricultural land use.


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