chemical characteristics of soils meaning in Chinese

土壤的化学特性

Clay minerals and surface chemical characteristics of soils developed under a palaeosol in lower west mountain area of beijing
北京西山古土壤母质上发育的土壤之粘粒矿物与表面化学特性
( 7 ) rainfalls can " deposit " the co2 in air , making it to take part in the process of karst , to dissolve and corrade carbonate rock . co2 concentration in soil become lower after heavy rainfall and become higher after general rainfall . ( 8 ) the value of chemical characteristic of soil water in the high elevation area is lower than that in the low elevation area
( 7 )降雨可以对coz产生影响， “沉淀”大气中的co : ，使其参与到岩溶作用中，溶蚀碳酸盐岩;降雨对土壤空气中coz的影响与雨强、雨量有关，降雨量、雨强较大时，土壤空气中的c02产生受到抑制，降雨量和雨强较小时，土壤空气中的coz浓度升高。