我国北方属大陆性气候的地区多,春季往往十年九旱,尤其是内蒙古、山西、甘肃等地,干旱年景较多,气候干旱给林业生产造成很大困难。这也是年年造林不见林的主要原因之一。但是,也有风调雨顺的年景。这样的年份,不仅农业可以获得丰收,造林植树也 In northern China, there are many areas with a continental climate. In spring, ten dry and nine dry seasons are common, especially in Inner Mongolia, Shanxi and Gansu provinces. There are many droughts and climate droughts have caused great difficulties in forestry production. This is also one of the main reasons why forests are not reforested every year. However, there is good weather. In such a year, not only can agriculture receive a good harvest, afforestation and planting trees also