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阳朔县金橘产业水土流失已成为制约农业可持续发展的主要因素之一。通过在金橘园种植香根草等治理金橘园水土流失,采用径流小区观测法,探讨香根草、多年生黑麦草不同治理措施对坡面径流及土壤侵蚀的影响,研究表明:香根草处理区泥沙为132.06 kg/hm2,分别与对照区和多年生黑麦草处理区减少水土流失量23.5%和33.04%;坡面径流量分别减少21.46%、52.41%。不同处理保水保土效益的总体趋势是:香根草>多年生黑麦草>对照区。以采用香根草措施治理水土流失效果最好。
Soil and water loss in Kumquat industry in Yangshuo County has become one of the main factors restricting the sustainable development of agriculture. Through the cultivation of vetiver in the orange grove and other management of the orange-and-orangery, the runoff plot observation method was used to study the effects of different control measures of vetiver and perennial ryegrass on runoff and soil erosion. The results showed that: For 132.06 kg / hm2, respectively, and the control area and the perennial ryegrass treatment area respectively reduced soil erosion amount by 23.5% and 33.04%; slope runoff decreased by 21.46% and 52.41% respectively. The overall trend of soil and water conservation benefit of different treatments is: vetiver> perennial ryegrass> control area. It is best to adopt the vetiver measures to control soil and water loss.