Nutrient dynamics at the interface between surface waters and groundwaters
Nutrient dynamics at the interface between surface waters and groundwaters
复制标题
地表水和地下水界面的养分动态
DOI：
10.1046/j.1365-2427.1998.00367.x
复制
发表时间：
1998
影响因子：
2.7
通讯作者：
P. Vervier
中科院分区：
文献类型：
--
作者：
C. Dahm;N. Grimm;P. Marmonier;H. Valett;P. Vervier
总结
Summary
1. The surface water/groundwater (SW/GW) interface is a crucial control point for lateral nutrient fluxes between uplands and aquatic ecosystems and for upstream/downstream (longitudinal) processes in lotic ecosystems.
2. Hydrological and biogeochemical dynamics of the SW/GW ecotone are linked to the degree of channel constraint and the sediment characteristics of the floodplain and stream bed.
3. The availability of specific chemical forms of electron donors and electron acceptors affects the spatial distribution of biogeochemical processes at the SW/GW interface. Temporal change in discharge is also a major factor affecting the rate and extent of these processes.
4. The magnitude of SW/GW interactions in lotic ecosystems is predicted to be a major determinant of solute retention. Channel morphology, stream bed composition and discharge are predicted to be important controls on SW/GW interactions.
5. Interdisciplinary research involving hydrologists, geomorphologists, aquatic ecologists, microbial ecologists and landscape ecologists is needed to further our present understanding of this critical interface linking terrestrial and aquatic ecosystems.