论文部分内容阅读
西吉县西部干旱山区然料极快,通常是导致破坏植被,加剧水土流失和生态环境恶化的重要根源。为探讨尽快解决黄土地区群众烧柴的困难和控制水土流失的途经。1982～1986年,我们在北京林业大学水保系的指导帮助下,在马建乡马儿岔集中连片营造了试验林草。探索水保薪炭林的适宜树种;确定合理的平茬期(轮伐期);平茬对燃料林产量的影响;合理的栽植密度和林分结构;荒山种草的途经和适宜的牧草。
Arid mountainous areas in the western Xijixu County are extremely fast and often lead to the destruction of vegetation, aggravating soil erosion and the deterioration of ecological environment. To explore as soon as possible to solve the difficulties of burning firewood in the loess area and control of soil and water loss. From 1982 to 1986, with the help of the guidance of the Department of Soil and Water Conservation, Beijing Forestry University, we built a pilot plantation at the Ma’ercha Centralized Contiguous. Explore the appropriate tree species for water conservation and firewood compensation; determine the reasonable stubble period (rotation period); influence of stubble on the yield of fuel forest; reasonable planting density and stand structure;