人工种植梭梭在荒漠化土地中植被恢复技术

Vegetation Restoration Technology of Planting Haloxylon ammondendron in Desertification Sandy Land

土地荒漠化是当今世界面临的严重环境问题,在土地退化生态系统中植被恢复是恢复生态学的首要工作,同时植被恢复技术是荒漠化土地再利用的重要途径。在黑河中游临泽地区小泉子治沙站,通过在该地区设置机械沙障并人工种植耐旱植物梭梭,并对其根系周围土壤含水量、梭梭生长动态以及其对沙丘的防风固沙效果进行了研究。研究结果表明,人工梭梭在西北干旱半干旱的荒漠化地区具有较好的生长态势,在该地区典型沙丘上对不同坡度的沙丘进行研究,发现在机械沙障作用下,梭梭能够较好的生长,而且梭梭茎和根的生长量积累都是呈现出增长趋势;耐旱植物梭梭能够对典型沙丘起到较好的防风固沙效果,而且对其周围沙丘的流沙固定效果,随着梭梭根系的发达和茎冠的茂盛会逐渐增强。

Desertification is a serious world-facing environmental problem,in land degraded ecosystems,vegetation restoration is the first work of restoration ecology,and vegetation restoration is an important approach to protest of desertification.Mechanical barrier were set up and artificial drought-resistant plants Haloxylon ammondendron were planted in Xiaoquanzi Desertification Control Station in Linze,and soil water content,growth dynamic and effect of windbreak and sand-fixation around its root system were studied.Results showed that,Haloxylon ammondendron of desertification in northwestern arid and semi-arid region has a good growth momentum.In the region,study of typical sand dune in different grade of sand dunes,it was found that with help of mechanical sand-fixation,Haloxylon could grow better,and accumulation of stem and root growth showed an increasing trend,plants Haloxylon could has a better windbreak and sand-fixation effect on the typical dune,with developed of root and stem,its sand-fixing effects would be gradually enhanced.