关键词: 林缘, 气温, 地面温度, 气地温差, 热力作用面

Abstract: This paper introduces the types and characters of wetlands in China and in the world, and the features of nutrient element cyclings of wetlands in some regions of China are also introduced.The regulation measures of paddy field ecosystems are discussed in intention to give full play of the productive potentials of wetlands.

Key words: Forest edge, Air temperature, Surface temperature, Air minus soil temperature, Thermal active surface