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以无措施坡耕地为对照,研究水保林、水平梯田、地埂植物带3种典型水土保持措施对桓仁浑江流域坡耕地有机质(SOM)变化的影响。共采集土样336个土壤样本进行分析研究。结果表明,采取了3种典型水土保持措施的土壤样品中的有机质含量均显著高于对照。其中,水平梯田和地埂植物带土壤中的有机质较对照分别提高了10.30%和29.50%。3种综合措施(水保林、水平梯田、地埂植物带)协同使用效果更为明显,可使有机质较对照组平均提高31.71%。
Taking no cultivated slope land as control, the effects of three typical water and soil conservation measures such as water and forest, horizontal terraces and meadows plants on the SOM in sloping farmland in Huanren Hunjiang River Basin were studied. A total of 336 soil samples were collected for analysis. The results showed that the soil organic matter content of three typical soil and water conservation measures were significantly higher than the control. Among them, the organic matter in the soil of terraces and terrestrial plants increased by 10.30% and 29.50% respectively compared with the control. The synergistic effects of three comprehensive measures (water and forest, horizontal terraces and meadows) were more obvious, which could increase the average organic matter content by 31.71% compared with the control group.