地表水-地下水的交错带及其生态功能  

HYPORHEIC ZONE OF GROUNDWATER AND SURFACE WATER AND ITS ECOLOGICAL FUNCTION

作　　者：滕彦国[1] 左锐[1] 王金生[1] 

机构地区：[1]北京师范大学水科学研究院

出　　处：《地球与环境》2007年第1期1-8,共8页Earth and Environment

基　　金：国家自然科学基金重点项目(50239010;40572139);国家重点基础研究规划项目(G1999043606)

摘　　要：地表水与地下水的相互作用在全球水循环中发挥着重要的作用,交错带是地表水-地下水相互作用的重要桥梁和纽带,并成为生态水文学这一新的研究领域的前沿课题。地表水-地下水的交错带是地表水与地下水的混合区域,该区域内生物地球化学活动强烈。地表水-地下水的交错带主要受自然因素和人为因素的影响。交错带内常发生物理作用、化学作用和生物作用过程,并影响交错带中水分的运动过程、溶质迁移过程和生物活动过程。交错带在水生生态系统中具有重要的功能,主要体现在缓冲作用、提供生物栖息地、提供食物、提供残留物种的保护区。交错带过程的模拟、观测方法和交错带内的生物地球化学过程和示踪以及交错带的生态功能值得进一步关注和深入研究。It plays an important role in global hydrological cycling for interaction between groundwater and surface water. Hyporheic zone is a bridge between groundwater and surface water, which becomes eco-hydrological frontier. The region between subsurface water and surface water is the hyporheic zone （HZ） with intensive biogeochemical activity. The hyporheic zone is influenced by both natural processes and anthropogenic activities. Three filtration mechanisms in terms of physical, chemical and biological filtration normally occur in most hyporheic zones, and they can impact on water movement, solute transport and biological activities. The hyporheic zone provides a number of ecologically important services for chemical buffering, habitat, food sources flow augmentation and refugia. In the future, some necessary researches should be focused on modeling of hyporheic zone process, key theoretical and field investigation, biogeochemical activities, ecological function of hyporheic zone.

关 键 词：交错带 地表水和地下水的相互作用 生态功能 生态水文学 

分 类 号：P641[天文地球—地质矿产勘探] S271[天文地球—地质学]