松嫩流域环境蠕变的若干事实

Some facts of creepiing environmental problem over the Songhuajiang-Nenjiang River Basin

松嫩流域是中国东北部一块富饶的土地,物产丰饶,气候适宜,自然状况保护相对较好;20世纪后半叶,随着国民经济的高速发展,在一定程度上环境也遭到不同程度的破坏,有些还是很严重的;从环境蠕变的角度分析了松嫩流域环境所发生干旱、黑土退化、天然林减少、草场退化、西部地区沙漠化和荒漠化、湿地干涸缩小、江河污染鱼类减少、城市污染等变化;这些变化与气候变暖有很大的关系,须引起高度重视,尽早采取相应的防御措施。

The Songhuajiang-Nenjiang river basin is located in northeast of China. It is a fertile land. There are abundant exchequer and variety life. Natural conditions over basin is relatively well. But this conditions no less is destroyed when quick develop of economy since 20th century. The creepiing environmental problem over the Songhuajiang and Nenjiang river basin is analysis in this paper. The problems is including drought, soil degradation, forest deduction, marsh lessen, category deduction of fish, environmental pollution of city and others. These changes are relative to climate warming. Although the changes is slow, but influence is gigantic.