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东北黑土区
    Analysis of the Changing Characteristics of the Soil Fertilities in the Black Soil Area of Northeast China
    东北黑土区土壤肥力变化特征的分析
    Characteristics of Soil Temperature Dynamics in the Black Soil Area of Northeast China
    东北黑土区土壤温度变化特征
    Spatial distribution of particulate organic carbon and aggregate associated carbon in topsoil of a sloping farmland in the Black Soil region,Northeast China
    东北黑土区坡耕地表层土壤颗粒有机碳和团聚体结合碳的空间分布
    Although there are some similarities in natural conditions in the three black soil regions,the black soil in China is prone to be eroded for its undula ting relief.
    通过比较分析认为:在自然条件上虽然三大黑土区具有一定的相似性,但我国东北黑土区由于地势起伏相对较大,更易遭受水土流失的危害;
    The black soil region in northeast China has become one of the most important regions for cereal grain production, while soil degradation is increasingly serious with the gradual reclamation of black soil resource.
    东北黑土区是我国重要的商品粮生产基地,但随着黑土资源的不断开垦,土壤退化问题日益加剧。
    The black soil area in northeast China is one important grains production base.
    东北黑土区是我国重要的商品粮基地。
    The concept and significance of the soil loss tolerance has been reviewed firstly,and then the shortcoming of the loss tolerance criteria being used in the black soil region of northeast China has been pointed out.
    在明确土壤容许流失量概念与意义的基础上,指出了我国东北黑土区现行的土壤容许流失量标准存在的不足。
    Comprehensive analyzing the investigation result of soil and water conservation practice at 72 small watersheds in the black soil region of northeast China,the criteria of soil loss tolerance and soil loss control has been constituted for the primary soil erosion typical areas.
    综合考虑对黑土区内72条小流域水土保持实践的调查结果,初步确定了东北黑土区主要水土流失类型区土壤容许流失量指标及水土保持治理指标。
    A typical rolling farmland in the Black Soil region of Northeast China was selected in a case study to analyze impact of soil erosion and deposition on the loss,transportation and accumulation of soil organic carbon(SOC) in topsoil by measuring particulate organic carbon(POC),composition of water stable aggregates of different sizes and contents of associated carbon in different slope positions.
    以东北黑土区典型漫岗坡耕地为研究对象,测定不同侵蚀程度地形部位表层土壤不同粒级有机碳、水稳性团聚体及其结合碳含量,探讨土壤侵蚀和沉积作用对表层土壤有机碳(SOC)损失、迁移和累积的影响。
 

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