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干旱地区改良粘质土壤的绿化技术
Authors
周宏伟
常 青
+4 more
徐新文
李丙文
王海峰
范敬龙.
Publication date
9 August 2010
Publisher
Abstract
本发明提供的干旱地区改良粘质土壤的绿化技术,步骤的实施:一是挖去原土60-100cm;二是在底部铺设砾石层20-30cm;三是在砾石上铺设土工布,制作土工布的孔洞数不少于8-12个/平方米,直径2-3厘米为宜;四是在土工布的上层客入耕作土40-70cm即可。耕作土中砂石含量应小于15%,不得含有大于25mm的石砾及杂物,土壤总盐量应小于2.2ms/cm,pH值小于8.5。该技术适合面状换土改造,不适合穴状换土改造,同时要求地下水埋深不小于1米。本发明针对粘质土壤的改良,在充分解析盐渍化发生机理的基础上,采取该绿化技术,从根本上解决绿化地土壤盐渍化和次生盐渍化问题,并保证绿化的长期效果,工期短,成本低,可操作性强。2006-2008年试种植的草坪及乔灌木树种,三年连续成功,充分验证了该绿化技术在干旱地区的应用推广的价值及实用性
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Last time updated on 29/11/2016