作　　者： ; ;

机构地区： 长江科学院

出　　处： 《长江科学院院报》 2000年第5期28-31,共4页

摘　　要： 测定使用一段时间后的黄麻土工布相对重量及其纤维素、木质素、果胶含量的变化。结果表明 ,各试验小区土工布均有不同程度降解。在覆盖土工布加裸露方式处理试验小区 ,土工布纤维素降低 8.80 %、木质素降低 3.48%、果胶降低 2 .2 1 % ;在覆盖土工布加种龙须草方式处理试验小区 ,土工布纤维素降低 4.2 2 %、木质素降低 1 .52 %、果胶降低 0 .39%。 6个试验小区土壤全 N,P,K含量分析结果表明 ,覆盖土工布试验小区与不覆盖土工布试验小区相比 ,土壤 N,P,K含量富集明显 ,土壤肥力增强。 Experiments were carried out to study the changes of jute geotextiles' relative weight and the content of cellulose,lignin and pectin after the jute geotextiles were used for a long time.The results showed that all of the jute geotextiles had biodegraded in varying degrees.In the experiment area covered by geotextiles without any plant,the content of the cellulose ,lignin and pectin reduced 8.8%,3.48%, 2.21% ,respectively.In the experiment area covered by jute geotextiles with planted chinese alpine rush,the jute geotextiles' cellulose ,lignin and pectin reduced 4.22%,1.52%,0.39%,respectively.The analysis results in the six experiment areas showed that the content of the N,P and K in the soil covered with jute geotextiles was obviously richer than that uncoverd,and the soil fertility improved.

关 键 词： 黄麻土工布 降解 土壤肥力

领　　域： [水利工程] [农业科学] [农业科学]