沙质土壤植物性节水保肥材料研究与应用

Research and Application of Plant Based Water-saving and Fertilizer-conserving Materials to Sandy Soil

干旱区沙质土壤缺乏矿物质和有机胶体、漏水漏肥,是沙区植被修复和生态林业建设的主要障碍,与此同时随着生态建设和林草业的发展产生了大量的植物性有机废弃物。因此,回收利用林业剩余物,研发植物性节水保肥材料,改良干旱区风沙土,具有恢复退化土地和回收有机物料的双重意义。文中概述了植物性节水保肥材料在荒漠化防治特别是沙漠林业开发中的重要性,综述了植物性节水保肥材料种类和发展史,对比国内外研究和应用有机物料改良沙质土壤的趋势和特点,从林业剩余物利用和荒漠化防治等领域提出了研发建议。

The lack of minerals and organic colloids in sandy soils of arid areas and the leakage of water and fertilizer are the main obstacles to vegetation restoration and ecological forest establishment,while a large number of plant organic wastes have been produced during the development process of ecological construction and forestry&grass industry.Therefore,the recovery and utilization of forest residues,the development of plant-based water-saving and fertilizer-conserving materials,and the improvement of arid sandy soils have dual significance for the restoration of degraded land and the recovery of organic materials.After summarizing the importance of plant-based water-saving and fertilizer-conserving materials in desertification control,especially in the development of desert forestry,the paper reviews their types and development history,compares the trend and characteristics of the research and application of organic materials to improve sandy soil at home and abroad and comes up with the suggestions on the research and development for the use forest residues and desertification control.