Element migration and enrichment characteristics of bedrock–regolith–soil–plant continuum system in the chestnut planting area,Chengde,China  

作　　者：Xiaofeng Wei Houyun Sun Zirang Chen Xia Li Hao Wei Wenru Jia Wei Li 

机构地区：[1]Sino-Zijin Resources Co.Ltd,Beijing 100081,China 2 School of Water Resources and Environment,China [2]University of Geosciences(Beijing),Beijing 100083,China [3]Beijing Institute of Geology for Mineral Resources,Beijing 100012,China [4]China Institute of Geo-Environment Monitoring,Beijing 100081,China [5]Hebei Center for Ecological and Environmental Geology Research,Hebei GEO University,Shijiazhuang 050031,China

出　　处：《Acta Geochimica》2022年第5期839-860,共22页地球化学学报（英文）

基　　金：S&T Program of Hebei(No.19224205D);the National Natural Science Foundation of China(No.42001027);Research Project of Social Science Development in Hebei Province(20210201377);Natural Science Foundation of Hebei Province(Nos.D2019403115 and D2019403168)。

摘　　要：In order to probe the geochemical relationship between the quality of economic crops and ecological geochemistry,this project studies the chestnut production area of Chengde City,Hebei Province,China.The chemical weathering index,chemical depletion fraction CDF,mass transfer coefficient,and bioconcentration coefficient were used to quantify the characteristics of element migration and accumulation in the BRSPC(Bedrock–Regolith–Soil–Plant Continuum system)system of gneiss formation area and dolomite formation area.The results show that the soil CaO,SiO_(2),Al_(2)O_(3),and Na_(2)O elements in the gneiss construction area are abundant,and the B,Ge,S,and Mo elements are relatively lacking;the soil B,Mo and Ge elements in the dolomite construction area are abundant,and the SiO_(2),Al_(2)O_(3),and Na_(2)O elements are slightly lower;The weathering intensity of gneiss is low-medium,with the relatively high mobility and apparent transformation of Se,B,V,S,Mn,and Mo.The weathering intensity of dolostone is low,with the relatively high mobility and apparent transformation of Na_(2)O,P,and Ni.Chestnut is rich in Cu,Ni,Se,and Ge,walnut has a high content of Mo,and hawthorn is rich in Se and B.The contents of Mn in chestnut are 1–2 times higher in walnut and hawthorn.It lays the theoretical foundation for the industry optimization of special industrial crop planting in Chengde according to our research.

关 键 词：Critical zone Eco-geochemistry Element migration CHESTNUT Chengde 

分 类 号：S154.4[农业科学—土壤学]