全新世高温期我国湖泊沉积和自然环境的基本特征

在全新世高温期,我国东部地区湖泊沉积广泛发育,西部地区湖泊扩张和高湖面记录普遍。证实该时期我国大多数地区水热条件与现今相比有不同程度的提高和改善。预测未来,因大气中CO_2倍增时重现全新世高温期的自然环境,总体上讲它有利于我国工农业生产条件的改善和环境质量的提高,但东部平原的洪涝灾害将加剧。

Characteristics of lake sediment and natural environments in china during the Holocene altithermal period

During the Holocene altithermal period, lake sediment developed extensively in the east part of China, and lake area expanded. Higher lake level was recorded in the west part, confirming that the heat and moisture conditions were improved to a certain extent. It is predicted that the reappearance of such natural environments as those occurring at Holocene altithermal period due to the doubling of CO_2 concentration in the atomosphere will generally be favourable to improving industrial and agricultural conditions and raising environmental quality although the flood disasters in the east plain may be aggravated in the future.