论文部分内容阅读
拉萨农业试验场在拉萨河的北岸,位于北纬29°41′,东经91°08′,四面环山,周围山峯峰多在拔海4,500公尺左右,6月山顶尚有积雪,拉萨河东西贯穿其间,拔海高度为3,600公尺。由于四面山峯围抱,气候比较温和,为西藏高原一富铙农业区。土壤属冲积砂壤土,排水良好,土层厚度一般的在50厘
Lhasa Agricultural Experimental Field is located on the north bank of the Lhasa River, latitude 29 ° 41 ’north latitude, longitude 91 ° 08’ east longitude, surrounded by mountains around the peak of 4,500 meters above sea level, there is still snow in June summit, Lhasa things Throughout the time, pull the sea height of 3,600 meters. Due to the surrounded by mountains, the climate is relatively mild, a rich agricultural area of Tibet plateau. Soil is alluvial sandy loam, drainage well, the thickness of the soil in general 50%