关于生态用水研究的讨论

十几年生态用水研究进展,其概念从自然地理平衡说法到生态系统稳定说法,至今未明确统一。按生态用水概念的内涵,将生态、环境、生态环境与用水、需水、耗水6个词的多样组合归纳为生态需水和生态用水两个词。地带性植被生态用水是生态用水研究的基础,可为生态保护和植被建设提供依据和目标。建议生态用水概念定义为:维持各类生态系统正常发育与相对稳定所必需消耗和现存的水称为生态用水。

Discussion on ecological use of water research

During the last decade,research on ecological use of water(EUW)has been greatly pro-gressed.The various concepts of EUW were propounded,such as the versions of physical geogra-phy balance and ecosystem stability etc.But the unified concept has not been conformed until now.According to the connotation of EUW concept,the various combinations of the six terms(e-cology,environment,eco-environment with use of water,water requirement,water consumption)can be merged into two terms:ecological water requirement and ecological use of water.EUW of zon-al vegetation is the basic research of EUW,which can provide scientific basis and goal for eco-logical conservation and vegetation construction.The definition of EUW concept can be suggested as follows:For maintaining normal devel-opment and relative stability of various kinds of ecosystems,the water which has to be consumed by the ecosystem and has to exist in the ecosystem is called ecological use of water(EUW).