CAJ | 학술논문

从我国区域内筛选出于现代气候条件下发育而成的现代土壤，建立土壤颜色的红度值（x）与年降雨量（y）的函数关系式：F543．35x0.4485,其中相关系数R2=0．6625（n=25）。利用此关系式式，可根据古土壤红度值推算古降水量，为研究卉土壤与古气候定量重建提供更为精确、可靠的数据。
종아국구역내사선출우현대기후조건하발육이성적현대토양，건립토양안색적홍도치（x）여년강우량（y）적함수관계식：F543．35x0.4485,기중상관계수R2=0．6625（n=25）。이용차관계식식，가근거고토양홍도치추산고강수량，위연구훼토양여고기후정량중건제공경위정학、가고적수거。
Soil profiles developed in modern climate were screened out. The function relational expression between the redness degree x of soil colour of China and annual mean precipitation y（mm） was established： y=543.35x0.448, R2= 0.662 5 （n = 25）. This relationship may be used to derive paleoprecipitation from paleosols, and provide more exact and credible data for studies in paleosols and paleoclimate quantificational reconstruction