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系统地论述了单叶省藤的生态生物学特性、壮苗培育、造林技术以及人工藤林经济效益的评价。研究结果表明:单叶省藤的天然分布仅见于海南岛东部及南部海拔300~1100m的原始林和次生林中,但人工栽培已扩大到广东、广西和福建等省(区)的南部地区,其最适栽培区的气候条件是:年均温>22℃,年降雨量>1500mm,≥15℃年积温>7000℃,最冷月均温>14℃,干旱月数少,几乎全年无霜冻;要求土层较深厚、肥沃和较湿润的土壤条件;采种处理后的种子可沙床播种催芽,亦可将种子置于低温高湿条件贮藏至翌年3月播种,湿砂层积催芽,安全可靠、发芽整齐、费用低廉,为生产上育苗的最佳催芽方法;适宜的光照、供水和施肥将促进单叶省藤苗高、叶数和叶面积的增长,提高苗木光合作用能力,加速各器官生物量的积累;人工造林宜用营养杯苗实行林藤间种,种植密度为1200~1500丛/hm2,丛植3~4株,石梓、火力楠、木麻黄、马尾松等是实施间种的较佳上层树种;在25年经营期内,藤茎总产量11349.0kg/hm2,净收入42939.86元/hm2,内部收益率21.2%,收益成本比2.13,投资收回期10.3a,经营藤林具较强的抗风险能力。
Systematically discusses the eco-biological characteristics of single-leaf rattan, seedling cultivation, afforestation techniques and economic evaluation of artificial rattan. The results showed that the natural distribution of single-leaf rattan was only seen in the primary and secondary forests at 300 ~ 1100 m above sea level in the eastern and southern parts of Hainan Island, but the artificial cultivation had been extended to the southern areas of Guangdong, Guangxi and Fujian provinces The optimum climatic conditions are: average annual temperature> 22 ℃, annual rainfall> 1500mm, ≥15 ℃ annual accumulated temperature> 7000 ℃, the coldest average monthly temperature> 14 ℃, less drought months, almost no frost ; Requires more deep soil, fertile and more humid soil conditions; Seeds after planting seeds can be sowing seeds germination, the seeds can also be placed in low temperature and humidity conditions until March planting the following year, wet sand stratification of germination, safety Reliable, sprouting and tidy, the cost is low, the best germination method for seedling production. Suitable light, water supply and fertilization will promote the growth of single leaf vines seedling height, leaf number and leaf area, improve seedling photosynthesis ability, accelerate Organ biomass accumulation; Artificial afforestation should use nutrition cup seedlings inter-lint species, planting density of 1200 ~ 1500 plexus / hm2, Planting 3 ~ 4, Shi Zi, Fire Nan, Casuarina, Masson is the implementation of intercropping better upper tree species; during the 25-year operation period, the total output of cane 11349.0kg / hm2, net income 42939.86 Yuan / hm2, the internal rate of return of 21.2%, the cost-benefit ratio of 2.13, investment recovery period of 10.3a, the management of vine with a strong anti-risk ability.