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沙柳是一种大灌木,枝叶繁茂,生长迅速,根系发达,固沙力强,极耐沙压,萌蘖力强,插橛造林成活力高,枝条直而绵软,为优良的编织原料,是我区盐池、灵武两县沙荒地主要造林树种之一。我们于1973～1974年在总结盐池、灵武群众利用沙柳治沙造林经验的同时,对沙柳的生物学、生态学特性进行了调查研究,目的是将群众造林的实践经验,从理论上加以总结,再用这些理论去指导今后的造林实践。一、盐池、灵武地区的自然概况盐池、灵武的沙漠海拔在1,000～1,350米,属宁夏河东沙区的鄂尔多斯西南沙区,大致沿长城两侧作西北东南向的断续带状分布,以流动的新月形沙丘及沙丘链为主,部分并复盖在基岩残丘上,层层叠置。固定及半固定沙丘仅见于流沙边缘或剥蚀残丘附近,该地区深居
Salix is a large shrub, lush foliage, rapid growth, developed root system, sand strong, very sand pressure, strong sprouting, plugging afforestation into high viability, branches straight and soft, is an excellent braided material, is I District Yanchi, Lingwu County, one of the main afforestation sand wasteland. From 1973 to 1974, we summarized the biological and ecological characteristics of Salix psammophila, while summarizing the experience of silviculture and salinization in Yanchi and Lingwu. The purpose of this study is to apply the practical experience of afforestation in theory To sum up, then use these theories to guide future afforestation practice. I. Natural Overview of Yanchi and Lingwu Areas The Yanchi and Lingwu deserts are 1,000-1,350 meters above sea level and belong to the southwest of Erdos Sandy Area in the Hedong Sandy Area of Ningxia. They are roughly distributed along the northwest and southeast of the Great Wall, The flow of crescent-shaped sand dune and dune chain, part of and covered in the bedrock mound, layers stacked. Fixed and semi-fixed sand dunes only found on the edge of quicksand or near the remnant remnant, the area is still inhabited