Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mine
The arsenic (As) release from litter decomposition of As-hyperaccumulator (Pteris vittata L.) in mine areas poses an ecological risk for metal dispersion into the soil. However, the effect of atmospheric nitrogen (N) deposition on the litter decomposition of As-hyperaccumulator in the tailing mine a...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-02-01
|
| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651324000344 |
| _version_ | 1797328828250456064 |
|---|---|
| author | Wenjuan Wang Dele Meng Xiangping Tan Mianhai Zheng Juanjuan Xiao Shuoyu Li Qifeng Mo Huashou Li |
| author_facet | Wenjuan Wang Dele Meng Xiangping Tan Mianhai Zheng Juanjuan Xiao Shuoyu Li Qifeng Mo Huashou Li |
| author_sort | Wenjuan Wang |
| collection | DOAJ |
| description | The arsenic (As) release from litter decomposition of As-hyperaccumulator (Pteris vittata L.) in mine areas poses an ecological risk for metal dispersion into the soil. However, the effect of atmospheric nitrogen (N) deposition on the litter decomposition of As-hyperaccumulator in the tailing mine area remains poorly understood. In this study, we conducted a microcosm experiment to investigate the As release during the decomposition of P. vittata litter under four gradients of N addition (0, 5, 10, and 20 mg N g−1). The N10 treatment (10 mg N g−1) enhanced As release from P. vittata litter by 1.2–2.6 folds compared to control. Furthermore, Streptomyces, Pantoea, and Curtobacterium were found to primarily affect the As release during the litter decomposition process. Additionally, N addition decreased the soil pH, subsequently increased the microbial biomass, as well as hydrolase activities (NAG) which regulated N release. Thereby, N addition increased the As release from P. vittata litter and then transferred to the soil. Moreover, this process caused a transformation of non-labile As fractions into labile forms, resulting in an increase of available As concentration by 13.02–20.16% within the soil after a 90-day incubation period. Our findings provide valuable insights into assessing the ecological risk associated with As release from the decomposition of P. vittata litter towards the soil, particularly under elevated atmospheric N deposition. |
| first_indexed | 2024-03-08T06:56:35Z |
| format | Article |
| id | doaj.art-16ff953b163947fea511f460ba48cc54 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-03-08T06:56:35Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-16ff953b163947fea511f460ba48cc542024-02-03T06:34:26ZengElsevierEcotoxicology and Environmental Safety0147-65132024-02-01271115959Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mineWenjuan Wang0Dele Meng1Xiangping Tan2Mianhai Zheng3Juanjuan Xiao4Shuoyu Li5Qifeng Mo6Huashou Li7Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, ChinaGuangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, ChinaKey Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaKey Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, ChinaResearch Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, ChinaGuangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, ChinaCollege of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China; Corresponding author.Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture of China, Guangzhou 510642, China; Corresponding author at: Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.The arsenic (As) release from litter decomposition of As-hyperaccumulator (Pteris vittata L.) in mine areas poses an ecological risk for metal dispersion into the soil. However, the effect of atmospheric nitrogen (N) deposition on the litter decomposition of As-hyperaccumulator in the tailing mine area remains poorly understood. In this study, we conducted a microcosm experiment to investigate the As release during the decomposition of P. vittata litter under four gradients of N addition (0, 5, 10, and 20 mg N g−1). The N10 treatment (10 mg N g−1) enhanced As release from P. vittata litter by 1.2–2.6 folds compared to control. Furthermore, Streptomyces, Pantoea, and Curtobacterium were found to primarily affect the As release during the litter decomposition process. Additionally, N addition decreased the soil pH, subsequently increased the microbial biomass, as well as hydrolase activities (NAG) which regulated N release. Thereby, N addition increased the As release from P. vittata litter and then transferred to the soil. Moreover, this process caused a transformation of non-labile As fractions into labile forms, resulting in an increase of available As concentration by 13.02–20.16% within the soil after a 90-day incubation period. Our findings provide valuable insights into assessing the ecological risk associated with As release from the decomposition of P. vittata litter towards the soil, particularly under elevated atmospheric N deposition.http://www.sciencedirect.com/science/article/pii/S0147651324000344Arsenic releaseHyperaccumulatorLitter decompositionN additionEnzyme activityMicrobial community |
| spellingShingle | Wenjuan Wang Dele Meng Xiangping Tan Mianhai Zheng Juanjuan Xiao Shuoyu Li Qifeng Mo Huashou Li Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mine Ecotoxicology and Environmental Safety Arsenic release Hyperaccumulator Litter decomposition N addition Enzyme activity Microbial community |
| title | Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mine |
| title_full | Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mine |
| title_fullStr | Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mine |
| title_full_unstemmed | Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mine |
| title_short | Nitrogen addition accelerates litter decomposition and arsenic release of Pteris vittata in arsenic-contaminated soil from mine |
| title_sort | nitrogen addition accelerates litter decomposition and arsenic release of pteris vittata in arsenic contaminated soil from mine |
| topic | Arsenic release Hyperaccumulator Litter decomposition N addition Enzyme activity Microbial community |
| url | http://www.sciencedirect.com/science/article/pii/S0147651324000344 |
| work_keys_str_mv | AT wenjuanwang nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine AT delemeng nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine AT xiangpingtan nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine AT mianhaizheng nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine AT juanjuanxiao nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine AT shuoyuli nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine AT qifengmo nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine AT huashouli nitrogenadditionaccelerateslitterdecompositionandarsenicreleaseofpterisvittatainarseniccontaminatedsoilfrommine |