Studies on Transpiration of seedlings of the Main Tree Species Under the Condition of Drought Stress in the Dry-hot River Valleys of the Jinsha River Transpiration of tree species for vegetation restoration in dry-hot river valleys A RESEARCH ON THE VEGETATI0N TYPES OF THE DRY-HOT RIVER VALLEY IN YUANMOU I. UNITS ABOVE ASSOCIATION A RESEARCH ON THE VEGETATION TYPES OF THE DRY-HOT RIVER VALLEY IN YUANMOU I.UNITS BELOW ASSOCIATION CLASSIFICATION OF VEGETATION IN QIAOJIA DRY-HOT RIVER VALLEY OF JINSHA RIVER, YUNNAN Effects of slope position on gax exchange charateristics of main tree species for vegetation restoration in dry-hot valley of Jingsha River Characteristic Parameters of Light Response of Photosynthesis of Main Tree Speciesfor Vegetation Restoration in Dry Season in Dry-Hot River Valley Technical Measures for Cultivation of Water and Soil Conservation Forest in Yuanmao Dry-hot River Valley in Yunnan Province and Its Preliminary Result