【摘要】 以福建省宁化县紫色土区的土地侵蚀地为研究对象,针对不同的土地利用类型分别采取相应的水土流失治理措施,通过样地和径流小区的观测,分析林地、坡耕地、茶果园的水土保持效果。结果表明,通过林草治理,随着治理年限的增长林草覆盖度明显提高,林草覆盖度2号(95%)>3号(80%)>4号(50%)>1号(35%);并且提高了土壤有机质、水解氮、速效钾、速效磷的含量,增强了土壤肥力;从径流量及侵蚀量可以看出,鱼鳞坑种植油茶+生物带措施控制土壤侵蚀效果最显著,径流量及侵蚀量分别达到61.09%、97.33%,为宁化县紫色土地区的水土流失治理提供科学依据,为宁化县农业可持续发展提供服务。更多还原

【Abstract】 Based on land erosion of purple soil in Ninghua, different land-use patterns taken soil and waterconservation measures and effect of soil and water conservation with 3 measures(forest land, slop land and teaorchard) were investigated by observing sample plots and runoff plots. The results showed that as the time wenton vegetation coverage significantly by forest management, that were No.2(95%)>No.3(80%)>No.4(50%)>No.1(35%), the contents of soil organic matter, hydrolyzable nitrogen, available potassium and available phosphoruswere increased and soil fertility improved. The runoff and sediment could be seen that it was the mostsignificant that fish-scale pits planted tea-oil tree +biological measures control soil erosion, runoff and erosionwere 61.09%, 97.33% respectively. The research provided the scientific basis for controlling soil erosion inpurple soil region and provided services for the sustainable development of agriculture in Ninghua.更多还原