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该研究对安徽省砀山县黄河故道区域的林地、耕地、果园、湿地及滩涂5种土地利用类型0~20cm、20~40cm和40~60cm3个土层的SOC和ROC含量进行了测定。结果显示,各土地利用类型土壤SOC在0~20 cm的土壤表层出现积聚,耕地(7.42g/kg)>林地(4.79g/kg)>果园(2.93g/kg)、湿地(2.96g/kg)及滩涂(3.07g/kg),果园、湿地和滩涂表层土壤SOC含量差异不显著;SOC含量与ROC含量之间存在极显著的相关关系;与SOC相比,ROC含量对土地利用变化的响应更敏感;除耕地表层外,ROC分配比例趋向稳定。
In this study, the SOC and ROC contents in 5 soil layers of 0 ~ 20cm, 20 ~ 40cm and 40 ~ 60cm of forestland, farmland, orchard, wetland and tidal flat in the old course of the Yellow River in Dangshan County, Anhui Province were measured. The results showed that SOC of all land-use types accumulated in the surface layer of 0-20 cm soil layer, and the soil accumulation in the soil was 7.42 g / kg> 4.79 g / kg> 2.93 g / kg in woodland or 2.96 g / ) And tidal flats (3.07 g / kg). There was no significant difference in SOC content in the orchards, wetlands and tidal flat soils. There was a significant correlation between SOC content and ROC content. Compared with SOC, the ROC content in response to land use change More sensitive; except for cultivated land surface, ROC distribution ratio tends to be stable.