“…Hg isotopic signatures in (a and b) precipitation, woody biomass, deep soil and rocks, lichen, moss on trees and on ground, throughfall of deciduous forest ("Throughfall_D", at the 1990, 1980, 1970, and 1958 retreat sites), and throughfall of coniferous forests ("Throughfall_C", at the 1930, 1890, and 1830 retreat sites). The Hg isotopic signatures of precipitation, deep soil, and rocks have been documented in our earlier study 38.…”