摘要
在分析甘肃省地形地貌、气候条件、河流及水资源、森林、土壤等自然环境的基础上 ,把影响甘肃省生态环境的因素分为自然因素和人为因素两大类 ,认为干旱、洪涝、水土流失等与人类活动共同促使甘肃省生态环境的变化 .从土地沙漠化、地下水下降、草原和绿洲退化、内陆湖泊萎缩、水质恶化、水土流失。
Based on the analysis of the topography, landforms, climate conditions, rivers, water resources, forests and soil of Gansu Province, this study divides the factors influencing Gansu eco environment into two types: natural factors and human factors. It is considered that drought, flood and soil erosion together with human activities cause the change in eco environment. The geographical distribution of eco environment is analyzed from the aspects of desertification, decline of ground water, decline of grassland and oasis, continental lake shrinkage, water pollution, soil erosion, forest degeneration, and soil salinization.
出处
《水利水电科技进展》
CSCD
2002年第3期6-8,11,共4页
Advances in Science and Technology of Water Resources
基金
长江三峡工程泥沙问题"九五"项目 ( 95 5 4)
国家自然科学委员会与水利部联合资助项目 ( 5 9890 2 0 0 )
关键词
生态环境
地理分布
地理环境
甘肃
eco environment
geographical distribution
geographical conditions
Gansu
