Abstract
In this study, the authors tried to capture the picture, functions and traditional maintenance practices of old Shonakano-ko, which is said to be the first attached lake reclaimed in Shiga, with a view to restoring the lake. As a result, in addition to Benten-naiko (a part of Shonakano-ko) reported in the previous paper, birds, shellfishes, and fishes most likely inhabiting Iba-naiko (the other part of Shonakano-ko) were identified for its environmental formation function. Moreover, it was revealed that humic soil called “Sukumo” and waterweeds in the lake bottom were made use of for alternative fuels in winter and green manure for arable lands, respectively, and traditional maintenance practices were thus illustrated partly.
