Camellia tachangensis tea plants have high economic,social,and ecological benefits.In recent years,they have been frequently used as an economic crops to help people alleviate poverty and become prosperous.The stoichiometric elements of carbon(C),nitrogen(N)and phosphorus(P)has been a recent research hotspot.Analyzing the fluctuations in soil carbon(C),nitrogen(N),and phosphorus(P)levels,along with their stoichiometric ratios,across varying ages of tea plantations can offer essential insights for the sustainable management and preservation of established tea plantations.This research examines the soil carbon(C),nitrogen(N),and phosphorus(P)content in mature tea plantations of varying ages(5,10,15,and 20 years old)located in Pu'an,Guizhou Province.It investigates the differences in soil C,N,and P content and their stoichiometric ratios across the different age groups of tea plantations.The results showed that with the increase of tea plantation age,soil C,N,P,C:P and N:P increased first and then decreased,while the change trend of soil C:N was not obvious..According to the soil N:P ratio,Camellia tachangensis tea plants are primarily limited by nitrogen(N).The results of the correlation analysis suggest a statistically significant relationship(P＜0.01)between soil carbon(C),nitrogen(N),and phosphorus(P)contents,while the associations between soil C:N,C:P,and N:P ratios and soil C,N,and P are found to be inconsistent.Overall,it is observed that as the age of the plantation increases,there is a decline in soil nutrient quality.To ensure the sustainable growth of tea trees,it is recommended to implement strategies such as increasing nitrogen fertilization and utilizing organic fertilizers to enhance the soil quality in tea plantations.
Camellia tachangensistea treesforest agesoilcarbon,nitrogen and phosphorusecological chemometrics
国家科技期刊平台
NSTL
万方数据
