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土地沙漠化是当今世界十大环境问题之一。我省是我国沙漠化较为严重的省份,建国后虽经大力治理,但沙漠化土地面积仍有发展、扩大的趋势。据调查,目前全省沙漠化土地面积近420000公顷,因此,防沙治沙是一项艰巨而紧迫的任务。人工造林作为防沙治沙的重要措施之一,涉及许多造林技术问题,诸如种苗、造林、管护以及病虫害防治等。现就治沙造林中涉及到的一些问题提出粗浅见解。 一、林种的布局
Land desertification is one of the ten major environmental problems in the world today. Our province is the more serious desertification province in our country. After the founding of the People’s Republic of China, despite its vigorous management, the area of desertified land is still growing and expanding. According to the survey, at present, the desertified land area in the entire province is nearly 420,000 hectares. Therefore, preventing desertification is an arduous and urgent task. As one of the important measures to prevent and control sand, artificial afforestation involves many afforestation technical problems, such as seedling, afforestation, management and protection as well as pest and disease control. Is now on the desertification afforestation in some of the issues put forward rough ideas. First, the layout of the forest species