摘要
基于对西北地区干旱化趋势的讨论 ,研究了西北内陆封闭盆地水盐迁移聚集的系统动力学模式 ,阐明了盆地浅表积盐与水盐失衡的根本原因 .在此基础上 ,探讨了水盐分布与生态适宜性之间的内在联系以及水循环节律的变化对土壤生态指数时空分布的影响 ,提出建立西北地区各物种的生存域及土壤生态指数对西部大开发具有重要意义 .此外 。
In terms of the arid trend in the Northwest China, this paper deals with the system dynamic pattern of water transfer and salt accumulation in this closed inland basin and elucidates the basic cause for the corresponding imbalance between the supergene salt accumulation and water salt. In this context, the paper reveals the internal relations between the water salt distribution and the soil eco adaptability , presents the effect of the variation in the rhythm of water cycle on the spatial temporal distribution of the soil eco indices, and advances the great importance of the Great West Development by establishing the survival domains of various species and the soil eco indices in the Northwest China. In addition, this paper discusses the construction of the reservoir project and the selection of the irrigation techniques in this inland basin.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
2000年第5期499-504,共6页
Earth Science-Journal of China University of Geosciences
基金
湖北省废物地质处置与环境保护重点实验室开放基金
关键词
气候干旱化
水盐失衡
生态环境效应
土壤
地下水
climatic arid
water salt imbalance
eco environmental effect
eco adaptability
soil eco index.
