荒漠生态系统水热平衡规律研究进展

Research advances of laws of water and heat balance of desert ecosystem

荒漠生态系统水热平衡问题是研究气候和小气候形成及其变化机制的重要问题 ,也是维持现有生态系统平衡稳定以及退化生态系统恢复的关键 ,而且对防治荒漠化起着重要作用 .该文系统地综述了国内外荒漠生态系统水热平衡规律及系统小气候的最新研究进展 ;并从水量平衡与水文动态、水热交换与传输以及热量平衡等 3个方面 ,评述了荒漠生态系统水热平衡研究的若干方法 .最后 ,该文对水热平衡理论和研究方法、水热平衡耦合模型以及荒漠生态系统的水热结构优化模式等未来的研究方向和重点问题作了分析 .

The water and heat balance of desert ecosystem is a key point of climate and micro-climate formation and its changing mechanism, and it is important to keep the current ecosystems steady and to recover the retrograde ecosystems, especially desert ecosystem. In this paper, the research developments of water and heat balance in desert ecosystem are summarized. Some research work and research methods on the water balance, the water movement and heat transfering and the heat balance are reviewed. At last, the authors analyze the future research directions and research highlights,such as the theory and research methods, coupling model, and optimized water-heat structure of desert ecosystem.