【摘要】 以不同石砾含量的土壤模拟不同石漠化程度的土壤条件，采用盆栽的方法研究降香黄檀（Dalbergia odorifera）体内矿质元素的分配规律。结果表明，降香黄檀叶的N、K、Ca、Mg元素含量普遍高于茎、根中相应元素含量。不同石砾含量对降香黄檀矿质元素的分配规律存在影响，随着石砾含量的增加，降香黄檀的Ca、Mg含量整体呈上升趋势；不同石砾含量条件下，降香黄檀N元素的含量变化不明显，但P、K元素的含量变化较明显。揭示降香黄檀在石漠化环境下矿质元素分配规律，为石漠化的科学治理提供参考。更多还原

【Abstract】 Using in the soil with different gravel content to simulate the soil conditions with different rock desertification degrees,the distribution law of mineral elements in Dalbergia odorifera was studied by pot culture. The results showed that the contents of N,K,Ca and Mg in Dalbergia odorifera leaves were generally higher than those in stems and roots. Different gravel content had an impact on the distribution of mineral elements in Dalbergia odorifera. With the increase of gravel content,the content of Ca and Mg in Dalbergia odorifera had an overall upward trend;under different gravel content conditions,the content of N elements in Dalbergia odorifera did not change significantly,but the content of P and K elements changed significantly. Revealing the distribution law of mineral elements in Dalbergia odorifera under the rocky desertification environment could provide reference for the scientific management of rocky desertification.更多还原