丘陵红壤泡桐──茶树复合系统根系与凋落物的研究  

Study on Roots and Withered Matter of Paulownia-tea System on Red Soil of Hilly Region

作　　者：叶川[1] 贺湘逸[1] 熊国根[1] 

机构地区：[1]江西省红壤研究所

出　　处：《江西农业学报》1998年第2期27-32,共6页Acta Agriculturae Jiangxi

基　　金：江西省自然科学基金

摘　　要：本项研究以进贤县温圳茶场泡桐茶树复合茶园为对象，探讨了桐茶复合系统的根系与凋落物状况，结果表明：桐茶复合茶园１ｍ土体内根系总量比纯茶园多３０．７０％，茶树根系７０．００％～８０．００％以上分布在４０ｃｍ以上土层，而泡桐根系则８０％以上分布在４０ｃｍ以下土层，二者营养生态位协调，不存在争水争肥矛盾。桐茶复合园年凋落物总量高出纯茶园２１．９０％，归还土壤的营养元素总量高出纯茶园１７．００％，从而使茶园土壤肥力得到明显改善。Roots and withered matter of paulownia-tea system in Wenzhen tea farm were studied in this paper. Results showed that total contents of roots in 0-100cm soil layer in paulownia-tea system was 30.7% higher than that in pure tea field; above 80% roots of paulownia distributed under 40cm soil layer while 70%-80% roots of tea tree in 0-40cm soil layer, which indicated that nutrient status was harmony without contradiction of water and fertilizer between paulownia and tea tree; total withered matter on paulownia-tea system was 21.8% higher than that in prue tea field, nutrient content of returnning soil increased by 17% over that in pure tea field, with remarkable improvement of siol fertility.

关 键 词：丘陵红壤 泡桐 茶树 复合系统 根系 凋落物 

分 类 号：S792.43[农业科学—林木遗传育种] S571.1[农业科学—林学]