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植物篱是以减少坡地水土流失,提高坡地生产能力为出发点,目的是要达到坡地生态、经济的良性循环和可持续利用。近些年在水保、退耕还林等生态工程建设中,大量运用植物篱进行坡耕地治理与改良的试验与探索,从而积累了很多成功的经验。通过对秭归县各种植物篱治理模式的总结和分析,提出了运用植物篱笆治理坡耕地的关键技术。篱笆品种选择要具备区域适应性强、多年生、茎部萌发力强,分枝密,垂直根深、水平侧根少,挡土挡水效果好,具有一定的经济效益的灌木、草本植物为最佳。布设原则:等高栽植。根据坡度大小,土壤性质、土壤的抗蚀能力以及该区域的降雨强度来确定带间距;依据品种的生物学特性确定栽植密度、方式。实践证明,在植物篱结构上以双行居多,也有少数单行(主要是灌木型),带间距一般在3~6 m。
Plant hedge is to reduce soil erosion on the slopes, to improve slope productivity as a starting point, the purpose is to achieve slope ecological and economic virtuous circle and sustainable use. In recent years, in the construction of ecological projects such as soil and water conservation, returning cultivated land to forests, extensive use of hedgerows for experimentation and exploration of slope farmland improvement and improvement has accumulated a great deal of successful experience. Through the summarization and analysis of the various hedgerow management modes in Zigui County, the key technologies of using the plant fence for slope farmland management are put forward. Selection of fences should have the regional adaptability, perennials, strong stems germination, dense branches, vertical root depth, less lateral roots, retaining the retaining effect is good, with some economic benefits shrubs, herbs are the best. Laying principles: contour planting. According to the slope size, soil properties, soil corrosion resistance and rainfall intensity in the region to determine the spacing; according to the biological characteristics of species to determine planting density, way. Practice has shown that in the structure of the hedgerow to double lines, there are a small number of solitary (mainly shrub type), with a spacing of 3 ~ 6 m.