Effects of Root Restriction on Plant Growth, Root Respiration, Activities ofH+-ATPase and H+-PPase in Tomato Seedlings Effects of Root Restriction on Plant Growth, Root Respiration, Activities ofH+-ATPase and H+-PPase in Tomato Seedlings Seasonal variation of soil respiration and its components in tropical rain forest and rubber plantation in Xishuangbanna, Yunnan. Modeling Soil Respiration of Alpine Meadow on the Northern Tibet Plateau Using MODIS and Climate Data