摘要
黑土是一种自然肥力很高的耕作土壤,主要分布在松嫩平原东部。黑土区一直以肥沃的土壤,优越的气候条件,多样的生境和雄厚的农业科技条件而著称。然而,随着全球气候的变化,经济的发展,城镇用地和农村居民地的扩展,黑土区在自然和人为两方面因素的影响下,出现了严重的生态环境问题,如土壤侵蚀严重,土壤退化导致的土地生产力降低、水资源短缺、农田污染以及自然灾害加剧等。在分析环境问题现状和产生原因的基础上,提出改善黑土区生态环境的对策,为东北地区农业的持续发展提供参考。
Black soil is a kind of fertile cultivated soil, and mainly distributed in the east of Songnen Plain in Northeast China. The black soil zone is famous for the fertile soil, excellent climate conditions, diverse habitat and rather advanced agro-technology conditions, so it is one of the commodity grain foundations, and plays an important role in the country's food supply. However, with the change of global climate, the development of regional economy, the increase of the population and the expansion of metropolitans and rural residential area, the land in the black soil zone is over-reclaimed and used improperly, and therefore, the problems of ecological environment, such as soil erosion, land degradation, water resource shortage, farmland pollution and natural hazard, is appearing. This paper analyzes the reasons of these environmental problems, and then puts forward the countermeasures.
出处
《干旱地区农业研究》
CSCD
北大核心
2004年第1期191-194,共4页
Agricultural Research in the Arid Areas
基金
中科院知识创新重要方向项目"东北地区农业水土资源优化调控机制与技术研究"(kzcx2-sw-416)
关键词
生态环境
黑土区
农业
农村
可持续发展
ecological environment
problems
countermeasure
black soil
Northeast China
