内蒙古奈曼旗兴隆沼林场流动沙丘治理规划与措施探讨

奈曼旗兴隆沼林场在治理流动沙丘中，利用先进的测试手段，借助立地类型图和立地类型划分方法，进行科学规划。采用喷播和深松插干造林方法，4年天然更新的杨树和柳树占治理面积的5％左右，人工栽培的杨树和柳树占10％，人工喷播的灌木、牧草占10％。在沙立上部植被覆量度由10％—15％增加到40％—50％，丘间低地各风蚀洼平地由50％—60％增加到75％—35％。流动沙丘物步恢复为疏林草地型固定与半固定沙丘。

Planning and Measure of Controlling Moving Sandy Dune in Xinglongzhao Forestry Farm, Naiman Qi, Inner Mongolia

Control of moving sandy dune in Xinglongzhao Forest Farm has been scientifically planned by use of advanced measuring methods and with the aid of site type map and dividing method of site type. After using the forestation method of spray sowing and inserting dry seedlings, the area of fouryearnaturalregeneration poplar and willow has taken up 5 percent of controlled area, with the area of artificialspraysowing poplar and willow taking up ten percent and the area of artificialspraysowing shrub and herbage taking up ten percent. The vegetation coverage at the top of sandy dune has risen from 10% ~ 15% to 40% ~ 50%, with that in lowland among dunes and winderosion bottomland risen from 50% ~ 60% to 75% ~ 85%. Moving sandy dunes have been preliminarily returned to fixed and semifixed sandy dunes of openforest grassland.