中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Changes in soil nutrients and stoichiometric ratios reveal increasing phosphorus deficiency along a tropical soil chronosequence

文献类型:期刊论文

作者Zhao, Wen1,2; Huang, Lai-Ming1,2
刊名CATENA
出版日期2023-03-01
卷号222页码:10
ISSN号0341-8162
关键词Hainan Island Tropical soil chronosequence Nutrient stoichiometry Phosphorus deficiency
DOI10.1016/j.catena.2022.106893
通讯作者Huang, Lai-Ming(huanglm@igsnrr.ac.cn)
英文摘要Understanding the variations and controls of soil nutrients during different stages of soil evolution can provide guidance for ecosystem nutrient management and regulation. This study investigated the changes in and factors associated with soil nutrients and stoichiometric ratios during different stages of soil development using a well-established soil chronosequence (0.09, 0.146, 0.64, 1.12, 1.81, and 2.30 million years) developed on basalt in southern China. Results showed that available nitrogen (AN) decreased continuously with increasing soil age. Total nitrogen (TN), total phosphorus (TP), available phosphorus (AP), and soil organic carbon (SOC) increased initially during the early stage of soil development, reaching peak values in the 0.146 million-year-old soil profiles. Thereafter, TP and AP fluctuated with increasing soil age, whereas SOC exhibited a decreasing trend with aging soil. The profile-averaged C:N (9.81-12.76), C:P (8.57-23.30), and N:P (0.85-2.00) remained rela-tively stable across the soil chronosequence (all the ranges < 15), while the profile-averaged AN:AP (29.73-97.36) varied greatly with increasing soil age (the range > 60). Moreover, the decreasing rate of AP (by 64%) and AP:TP (by 71%) was much higher than that of AN (by 46%) and AN:TN (by 26%) when the soil age was greater than 0.64 million years, demonstrating more severe P deficiency and possible greater P limitation in the late stage of soil development. Bayesian structural equation modeling showed that NDVI, average annual evaporation, clay content, and pH considerably influenced the variations in C:N, C:P, N:P, and AN:AP, but the degree of influence differed among the various factors. Our study demonstrates that it is necessary to apply P-fertilizers in older tropical soils (>0.64 million years) developed on basalt to alleviate the increasing P deficiency in the late stage of soil evolution.
WOS关键词RAIN-FOREST ; NITROGEN-FIXATION ; CARBON ; LIMITATION ; DYNAMICS ; ISLAND ; WATER
资助项目National Natural Science Foundation of China[41977004] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2019052] ; Bingwei Outstanding Young Talent Project from the Institute of Geographical Sciences and Natural Re-sources Research[2017RC203] ; Scientific Research Programs from State Key Laboratory of Earth Surface Processes and Resource Ecology[2022-KF-04]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:000917300900001
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Bingwei Outstanding Young Talent Project from the Institute of Geographical Sciences and Natural Re-sources Research ; Scientific Research Programs from State Key Laboratory of Earth Surface Processes and Resource Ecology
源URL[http://ir.igsnrr.ac.cn/handle/311030/189723]  
专题中国科学院地理科学与资源研究所
通讯作者Huang, Lai-Ming
作者单位1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Yellow River Delta Modern Agr Engn Lab, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Wen,Huang, Lai-Ming. Changes in soil nutrients and stoichiometric ratios reveal increasing phosphorus deficiency along a tropical soil chronosequence[J]. CATENA,2023,222:10.
APA Zhao, Wen,&Huang, Lai-Ming.(2023).Changes in soil nutrients and stoichiometric ratios reveal increasing phosphorus deficiency along a tropical soil chronosequence.CATENA,222,10.
MLA Zhao, Wen,et al."Changes in soil nutrients and stoichiometric ratios reveal increasing phosphorus deficiency along a tropical soil chronosequence".CATENA 222(2023):10.

入库方式: OAI收割

来源:地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。