林分密度对华北土石山区油松人工林土壤有机碳及养分特征的影响OA北大核心CSCDCSTPCD
Effects of Pinus tabulaeformis Carr.plantation density on soil organic carbon and nutrients characteristics in rocky mountain area of northern China
以木兰围场国有林场管理局实施间伐后6种保留密度下(540、650、1084、1104、1408和1860株/hm2)油松人工林为研究对象,研究各土层的土壤有机碳和N、P、K等养分元素含量及其相关关系.研究结果显示:(1)土壤有机碳含量和碳密度垂直递减特征明显,均随土壤深度的增加而显著减小,当林分密度由540株/hm2增加到1860株/hm2时,土壤有机碳含量及碳密度变化规律不尽一致,其分布区间分别为10.56～21.21g/kg,与5.48 ～1…查看全部>>
Soil is the common but precious natural resource that sustains the survival and development of human beings and our society. As a vital link of global carbon cycle, it is the largest carbon pool of terrestrial ecosystem. During the past two decades, Chinese government has been implementing an unprecedented large-scale afforestation program that played a key role on the cumulative carbon sequestration. Hence, it is of great importance to study the effects of …查看全部>>
任丽娜;王海燕;丁国栋;高广磊;杨晓娟
教育部水土保持与荒漠化防治重点实验室,北京林业大学水土保持学院,北京100083教育部水土保持与荒漠化防治重点实验室,北京林业大学水土保持学院,北京100083教育部水土保持与荒漠化防治重点实验室,北京林业大学水土保持学院,北京100083教育部水土保持与荒漠化防治重点实验室,北京林业大学水土保持学院,北京100083教育部水土保持与荒漠化防治重点实验室,北京林业大学水土保持学院,北京100083
农业科技
油松人工林土壤有机碳土壤有机碳密度土壤养分林分密度
Pinus tabulaeformis Carr plantation soil organic carbon soil organic carbon density soil nutrients stand density
《干旱区地理》 2012 (3)
456-464,9
国家林业局林业公益性行业科研专项(200804022A,20100400201-02)资助