Soil Moisture Alters the Response of Soil Organic Carbon Mineralization to Litter Addition
| Autor: | Zhangquan Zeng, Micai Zhong, Qingkui Wang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010504 meteorology & atmospheric sciences
Ecology Chemistry Soil organic matter Bulk soil Soil classification 04 agricultural and veterinary sciences Soil carbon Mineralization (soil science) Plant litter complex mixtures 01 natural sciences Humus Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental Chemistry Soil fertility Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Ecosystems. 19:450-460 |
| ISSN: | 1435-0629 1432-9840 |
| DOI: | 10.1007/s10021-015-9941-2 |
| Popis: | Increasing rainfall and longer drought conditions lead to frequent changes in soil moisture that affect soil organic carbon (SOC) mineralization. However, how soil moisture affects response of SOC mineralization to litter addition in forest ecosystems remains unexplored. We added 13C-labeled litter to subtropical forest soils with three mass water contents (L, 21%; M, 33%; H, 45%). Carbon dioxide production was monitored, and the composition of soil microbial communities was determined by phospholipid fatty acid (PLFA). When no litter was added, SOC mineralization was greater in the M-treated soil. Litter addition promoted SOC mineralization, but this promotion was altered by soil moisture and litter type. Priming effects induced by P. massoniana leaf litter in the M-moistened soil were significantly (P |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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