Linking plant nutrient supply to bedrocks in karst ecosystem:plant roots and mycorrhizal fungus mobilize nutrients from bedrock directly
Linking plant nutrient supply to bedrocks directly will help us better seize the key features of nutrient cycling in karst ecosystem.The weathering and erosion of the karst bedrocks provide residues for soil formation,mineral nutrients for plant growth,and well-developed underground special structure providing the rather complex underground habitat for plants in karst.Apart from the unique soil environments derived from intense soil surface erosion,invisible underground leakage and various underground soil stock,karst plants also keep critical material exchanges with bedrocks through roots and mycorrhizal fungus directly.Whats more,the well-developed fractures and dissolution features in carbonate bedrocks enlarge the total interfaces between roots,fungus,soil,and bedrocks.However how plant roots and mycorrhizal fungus drive underground bedrock weathering and erosion still remains uncertain.Few studies report such root-fungi-rock interactions in karst habitats.Thus,characterizing and predicting the role of bedrocks in regulating plant nutrient supply is urgent and critical for better understanding of plant nutrient cycling in karst ecosystem.
Kaixiong Xing Zeqing Ma Chengen Ma Chenglong Tu Dali Guo
Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,11A,Datu Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550081,China
国际会议
The 11th International Symposium on Geochemistry of the Earths Surface(GES-11)(第十一届地球表层地球化学国际研讨会)
贵阳
英文
1-3
2017-06-11（万方平台首次上网日期，不代表论文的发表时间）