论文部分内容阅读
哈密地区处于欧亚大陆的腹部,平原农区的四周基本上被沙漠所包围,夏季在北疆高压脊和南疆低压天气形势的影响下,干热风形成频繁,已成为危害苗木培育及树木生长的主要自然灾害.据调查,哈密山南平原地区因干热风危害致使苗木的死亡率就达10%左右.为有效地防御干热风给林业生产带来的危害,下面根据我们多年的观察和研究,就此问题谈几点认识,与大家共同商榷.
The Hami area is located in the abdomen of the Eurasian continent. Basins in the plain areas are basically surrounded by deserts. Due to the high pressure ridge in the northern Xinjiang and the low-pressure weather in the southern Xinjiang in the summer, the dry and hot winds have become frequent and have become a threat to seedling cultivation and tree growth According to the survey, the mortality rate of seedlings caused by dry and hot winds in the Hami Shannan Plain is about 10% .In order to effectively prevent the harm caused by dry and hot winds to the forestry production, according to our years of observation and research, Talk about a few points of understanding, discuss with everyone.