小流域治理栽山杏抗干旱经济效益高郭二满，侯丽霞在我国北方，有一个相当宽阔的寒冷干旱地带。我区即属于这一范畴，为典型的干旱大陆性气候。春季多风少雨，夏季炎热而干燥，春秋温度变化剧烈，日较差和年较差均大。受极地大陆气团和蒙古高气压的影响，冬季严寒少雪，低... Small watershed management planted apricot drought-resistant high economic benefits Guo Erman, Hou Lixia in northern China, there is a very wide cold and dry land. My area belongs to this category, a typical arid continental climate. Windy and rainy spring, hot and dry in summer, spring and autumn temperature changes violently, the Japanese are poor and the annual difference are large. Affected by the polar continental mass and high pressure in Mongolia, the winter is cold and snow-less, low ...