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通过对留杉萌条伴生木荷混交林可持续经营研究,结果表明:15年生留杉萌条伴生木荷林分伐除杉萌条后蓄积量159.9 m3/hm2,比纯木荷林分蓄积量多6.8%,且留杉萌条伴生木荷林分可获取间伐材23.9 m3/hm2,增加收入3 705元/hm2;留杉萌条伴生木荷林林分总持水量2 022.6 t/hm2比纯木荷林分总持水量3.9%;土壤容重、毛管孔隙、非毛管孔隙、总孔隙、通气度、最大持水量、自然含水量、最大持水量、毛管持水量、最小持水量等土壤物理性质指标留杉萌条伴生木荷林分均优于纯木荷林分;留杉萌条伴生木荷林分与纯木荷林分土壤有机质、全N、全P、全K、水解N、速效P、速效K等化学性质主要指标均无明显差别;表明留杉萌条伴生木荷林混交林与纯木荷林比较,可不增加投资取得更高回报,并有效改善生态状况。
Through the sustainable management of the mixed Schima superba Schima superba mixed forest, the results showed that: 15-year-old lanceolata sprouting associated Schima superba Fen addition spruce shoot volume 159.9 m3 / hm2, The amount of 6.88% more, and the spruce tree sprouting associated Schima superba can obtain 23.9 m3 / hm2 of thinning wood, an increase of income 3 705 yuan / hm2; spruce cedar sprouting associated Schima superba stand total water 2022.6 t / hm2 The total water holding capacity was 3.9% higher than that of pure musklin. Soil physico-chemical properties such as soil bulk density, capillary porosity, non-capillary porosity, total porosity, air permeability, maximum water holding capacity, natural water content, maximum water holding capacity, capillary holding capacity and minimum water holding capacity The characters of the index of spruce (Lycium barbarum L.) were higher than that of the pure wood; the organic matter, total N, total P, total K, hydrolyzed N, Quick-acting P, available K and other chemical properties of the main indicators were no significant difference; that spruce cedar spruce associated with the wood mixed with pure wood, can increase investment without increasing returns and effectively improve the ecological conditions.