广西林业科学2011，Vol.40Issue(3)：163-168,6.
连续两年桉树林下间种3种牧草对土壤肥力及地表径流的影响与评价
Effects and Evaluation of Three Pastures Interplanting in Eucalyptus Plantation for Two Consecutive-Years on Soil Fertility and Runoff
摘要
Abstract
Such 3 pastures as Tephrosia candida , StyIosanthes guianensis and （ Penniseturn arneri- canu x Pennisetumpurpureurn ） x Penniseturn purpureurn cv. Mort were interplanted in Eucalyptus plantation. After 2 years, compared with baseline survey, soil pH, organic matter, total N, total P2O5, available P and exchangeable Mg increased at different levels, ranging from 7.59% to 110.00 % with the density of 3m x 2m. Content of organic matter in A layer of soil averagely increased by 14.47 % than that of Eucalyptus pure plantation, 35.54 % higher than baseline survey. Soil pH, organic matter, total N, total P2O5, available P and exchangeable Mg increased at different levels,ranging from 2.78 % to 135.71% with the density of 6m × 2m. Content of organic matter in A layer of soil averagely increased by 57.45 % than that of Eucalyptus pure plantation, 36.76 % higher than baseline survey. Compared with pure plantation of Eucalyptus, runoff of 2-year-old Eucalyptus plantation interplanted with （Pennisetun arnericanum × Pennisetum purpureum ） x Pennisetum purpureum cv. Mort decreased by 30.82% and 21.07% respectively. The model of growing pasture in Eucalyptus plantation not only increased the content of soil mineral substance, but also improved the growth of Eucalyptus, decreased soil and water erosion and protected ecological environment.关键词
桉树/林下间种/牧草/土壤肥力Key words
Eucalyptus/interplanting/pasture/soil fertility分类
农业科技引用本文复制引用
梁英彩,蒋燚,王会利,陈家贵,梁燕芳,何艳燕..连续两年桉树林下间种3种牧草对土壤肥力及地表径流的影响与评价[J].广西林业科学,2011,40(3):163-168,6.基金项目
广西科学研究与技术开发计划项目(主席基金08160-04) （主席基金08160-04）
