生物
生物多样性
营养物
生产力
垃圾箱
亚热带
植物凋落物
营养循环
生态学
农林复合经营
农学
宏观经济学
经济
作者
Meifeng Deng,Shuijin Hu,Lulu Guo,Lin Jiang,Yuanyuan Huang,Bernhard Schmid,Chao Liu,Pengfei Chang,Shan Li,Xiaojuan Liu,Keping Ma,Lingli Liu
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2023-01-20
卷期号:9 (3)
被引量:30
标识
DOI:10.1126/sciadv.add4468
摘要
Mycorrhizae are symbiotic associations between terrestrial plants and fungi in which fungi obtain nutrients in exchange for plant photosynthates. However, it remains unclear how different types of mycorrhizae affect their host interactions and productivity. Using a long-term experiment with a diversity gradient of arbuscular (AM) and ectomycorrhizal (EcM) tree species, we show that the type of mycorrhizae critically controls the effect of diversity on productivity. With increasing diversity, the net primary production of AM trees increased, but EcM trees decreased, largely because AM trees are more effective in acquiring nitrogen and phosphorus. Specifically, with diversity increase, AM trees enhance both nutrient resorption and litter decomposition, while there was a trade-off between litter decomposability and nutrient resorption in EcM trees. These results provide a mechanistic understanding of why AM trees using a different nutrient acquisition strategy from EcM trees can dominate in subtropical forests and at the same time their diversity enhances productivity.
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