scholarly journals Species diversity and temporal stabilization of root productivity of tropical grassland to nitrogen application

2021 ◽  
Vol 120 ◽  
pp. 106987
Author(s):  
Preeti Verma ◽  
R. Sagar
Author(s):  
Anna V. Ludikova

The pioneer diatom study of the Early Weichselian (Valdai) sediments in Lake Ladoga basin was performed. The specifics of the diatom assemblages (co-occurrence of ecologically incompatible taxa, poor species diversity, low diatom concentration and selective preservation) suggest that during the Early Weichselian time intense erosion of previously deposited marine Eemian (Mikulino) sediments prevailed, which resulted in re-deposition of marine diatoms. The sedimentation took place in high-energy environments unfavorable for diatom accumulation and preservation.


2009 ◽  
Vol 11 (2) ◽  
pp. 99-116 ◽  
Author(s):  
O. N. Vinogradova ◽  
Eviatar Nevo ◽  
Solomon P. Wasser
Keyword(s):  

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