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In natural environment plants are exposed to many different stress factors, including heavy metals, whose elevated concentration causes oxidative stress, connected with formation of reactive oxygen species (ROS). Therefore, plants have developed defence systems, including enzymatic antioxidant system, able to remove ROS. The work concerns the accumulation of two heavy metals, cadmium (Cd) and lead...
This paper describes some characteristics and properties of low molecular compounds - labile fraction, isolated from dissolved organic matter in ground and surface waters on arable land. The differences in composition of labile fraction using IR spectroscopy were studied. Also, the ability of labile fraction to heavy metals complexation was analyzed.
The concentrations of dissolved organic compounds (DOC) in the waters of small and large agricultural drainage basins were analyzed. It was found that the average DOC concentrations in surface water of the large agricultural drainage basin was 15.6 mg/1. Much higher DOC concentrations were noted in ground and surface waters of the small agricultural drainage basin. Groundwater under a cultivated field...
The aim of this paper is to compare the chemistry of surface waters taken from two areas: Poland (Wielkopolska) and Lithuania. These two areas have different environments and different agricultural utilization. The high concentration of both nutritive compounds and dissolved humic substances were found in the Wielkopolska Region, where a great proportion of cultivated fields and intensive agrotechnics...
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