蘭考縣泡桐材質輕柔，結構均勻，不翹不裂不變形，耐蝕耐腐耐高溫，是制家俱、模型、樂器的上乘材料。經北京樂器研究所對全國十幾個地區桐木板材的研究鑒定，確定蘭考泡桐為全國制做古箏、琵琶面板等樂器的最佳材料。 　　
        
    蘭考縣位于黃河岸邊，歷史上黃河曾多次在此泛濫改道，形成了大面積地質疏松、透氣性能較好的少質土，對泡桐生長十分有利。60年代初，蘭考縣委書記焦裕祿根據蘭考的地理環境倡導栽種泡桐。自那時起，泡桐的種植得到推廣，成為蘭考縣農業一大優勢。蘭考泡桐是我國八大優良樹種之一，生長迅速，當地有“一年一根桿，兩年粗如碗，三年能鋸板“之說。8－10年采伐，胸徑可達50－80厘米，材積量在0.5立方米以上。因此，當地群眾說：“要想富，栽桐樹，生產致富好門路。” 　　
       
    目前，蘭考縣泡桐樹達600多萬棵，每年除滿足當地需要外，還可向國家提供3萬多立方米的桐材，已成為我國重要的桐木生產基地。蘭考泡桐加工的桐木漆器，毛拼板等在日本享有盛譽，年創匯3000萬元。加工制作的琵琶、古箏等樂器遠銷日本、美國、德國、加拿大、香港等國家和地區，為國家做出了貢獻。



    Lankao paulownia has soft and light wood and balanced structure. It will endure corrosion and high temperature, and not get cracked, raised up or transformed. These characteristics determine it to be superior materials for making furniture, models and instruments.
      
    Lankao County is located in the shore of the Yellow River, where soft sandy soil is appropriate for paulownia's growing. It was initiate in Lankao County in early 1960s by Jiao Yulu, and later was spread widely. Nowadays, it has been an advantage in Lankao and become one of the eight superior tree species in China. Lacquer paulownia wood and rough jointed boards made from paulownia enjoys a high reputation in Japan; Chinese lutes and kotoes made from it have been sold to Japan, America, Germany, Canada, Hong Kong and many other regions, which makes a great contribution to Chinese economy.