{"title":"氮输入下垃圾腐烂对生物量时间稳定性的反馈作用","authors":"Preeti Verma, R. Sagar, Aakansha Pandey","doi":"10.1002/ldr.5125","DOIUrl":null,"url":null,"abstract":"<p>Nitrogen (N) input affects litter decay and ecosystem functioning. However, the mechanism of litter decay under temporal N-inputs has rarely been observed. Here we show that three-year experimental N-inputs significantly stimulated the rate of litter decay to some extent and then inhibited it with increasing N-inputs. The N-inputs affected the litter's mass loss by directly influencing the temporal stability of aboveground biomass (BS) and diversity while indirectly changing soil pH, C: N ratio, and synergistic interactions of soil, vegetation, and microbial traits. The BS has emerged as a significant regulatory factor for the litter decay of tropical grassland. The outcome of the present study will be helpful in predicting the global feedback of litter decay on the N inputs and the amount of N required for the sustainable functioning of the degraded tropical or similar grasslands.</p>","PeriodicalId":203,"journal":{"name":"Land Degradation & Development","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Feedback of litter decay to temporal stability of biomass under N-inputs\",\"authors\":\"Preeti Verma, R. Sagar, Aakansha Pandey\",\"doi\":\"10.1002/ldr.5125\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Nitrogen (N) input affects litter decay and ecosystem functioning. However, the mechanism of litter decay under temporal N-inputs has rarely been observed. Here we show that three-year experimental N-inputs significantly stimulated the rate of litter decay to some extent and then inhibited it with increasing N-inputs. The N-inputs affected the litter's mass loss by directly influencing the temporal stability of aboveground biomass (BS) and diversity while indirectly changing soil pH, C: N ratio, and synergistic interactions of soil, vegetation, and microbial traits. The BS has emerged as a significant regulatory factor for the litter decay of tropical grassland. The outcome of the present study will be helpful in predicting the global feedback of litter decay on the N inputs and the amount of N required for the sustainable functioning of the degraded tropical or similar grasslands.</p>\",\"PeriodicalId\":203,\"journal\":{\"name\":\"Land Degradation & Development\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2024-04-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Land Degradation & Development\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/ldr.5125\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Land Degradation & Development","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/ldr.5125","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Feedback of litter decay to temporal stability of biomass under N-inputs
Nitrogen (N) input affects litter decay and ecosystem functioning. However, the mechanism of litter decay under temporal N-inputs has rarely been observed. Here we show that three-year experimental N-inputs significantly stimulated the rate of litter decay to some extent and then inhibited it with increasing N-inputs. The N-inputs affected the litter's mass loss by directly influencing the temporal stability of aboveground biomass (BS) and diversity while indirectly changing soil pH, C: N ratio, and synergistic interactions of soil, vegetation, and microbial traits. The BS has emerged as a significant regulatory factor for the litter decay of tropical grassland. The outcome of the present study will be helpful in predicting the global feedback of litter decay on the N inputs and the amount of N required for the sustainable functioning of the degraded tropical or similar grasslands.
期刊介绍:
Land Degradation & Development is an international journal which seeks to promote rational study of the recognition, monitoring, control and rehabilitation of degradation in terrestrial environments. The journal focuses on:
- what land degradation is;
- what causes land degradation;
- the impacts of land degradation
- the scale of land degradation;
- the history, current status or future trends of land degradation;
- avoidance, mitigation and control of land degradation;
- remedial actions to rehabilitate or restore degraded land;
- sustainable land management.