山西中部地区近500年来生态环境劣变与气象灾害加剧的分析研究

Analysis Research of Deteriorating of Ecological Environment and Aggravation of Meteorological Disa ster nearly 500 YearsinCentralShan xi

本文在搜集了大量生态环境历史变迁及气象灾害史料的基础上,应用历史学、生态学、环境学、灾害学等多学科理论与方法,对山西中部地区自明代前中期以来近500年的生态环境劣变过程,以及在其影响下的气象灾害变化情况进行了分析研究后,得出初步结论:森林毁坏导致生态环境破坏,具有不可逆性和累积性的特征。生态环境一旦被破坏就很难恢复;生态环境遭破坏引发4个方面恶果:一是水土流失会长期存在,并逐趋加重。二是洪涝灾害明显加剧。三是干旱频率显著增大。四是局地性强对流天气造成的灾害趋于严重。森林毁坏,生态环境恶化导致气象灾害加剧,反过来气象灾害加剧又促使生态环境进一步恶化。

The destruction of ecological environment, caused by the forest destruction, has the irreversibility and the accumulation characteristic and the ecological environment is difficult to restore. The destruction of ecological environment bring on 4 aspects of evil consequences： soil erosion will exist long- term and aggravates gradually, the flooding disaster aggravate obviously, the arid frequency increases remarkably, the disaster caused by the local strong convection weather aggravate seriously. The forest destruction and the worsening of ecological environment causes the meteorological disaster to intensify and the meteorological disaster contrarily worsen the ecological environment.