刺槐林人工促进更新试验  

Artificial Forcing Regeneration of Robinia pseudoacacia Forest

作　　者：王超[1,2] 王春荣[1,2] 于青军 尤海舟[1] 

机构地区：[1]河北省林业科学研究院,石家庄050061 [2]河北省林木良种工程技术研究中心,石家庄050061 [3]平泉县国有黄土梁子林场,河北平泉067500

出　　处：《中国农学通报》2014年第28期57-60,共4页Chinese Agricultural Science Bulletin

基　　金：河北省科技支撑计划"山区林地复合经营与新产品开发研究与示范"(11230607D)

摘　　要：以第3代皆伐刺槐林为研究对象,采取1/2环状沟、树桩扒皮、劈桩、挖除伐桩和对照5种人工促进更新措施,对萌芽苗和根蘖苗的萌发数量、生长量、生物产量和生产成本进行调查分析。结果表明5种处理均能产生大量的萌生新株,平均每伐桩可萌生6.7～8.5株,更新效果较好;其中挖除伐桩对根蘖苗促进作用明显,单株萌生量平均达7.8株,较其他措施高出160%～270%;但其他4种措施的根蘖苗平均萌生2.1～3.0株,也可满足林分更新的需要。1/2环状沟、扒皮、劈桩和对照处理每株萌芽苗3.8～6.0株,长势良好,生物产量高,可作为刺槐短期利用的对象。综合更新效果和成本,挖除伐桩是刺槐残次林更新较好的选择,1/2环状沟、扒皮和劈桩效果不明显不宜应用,对照处理及时疏伐可起到较好的林分更新效果。In this paper, the effect of five artificial update measures of the third generation of Robinia pseudoacacia after clear cutting were studied, including semicircle furrow, stump barking, stump hacked,stump excavated out and the control. The quantity, growth, biomass and cost of production were compared. It showed that many saplings sprouts were produced by the 5 measures, 6.7-8.5 plants on every stump, the effect of regeneration was good. The quantity of suckers was the maximum by stump excavated out, 7.8 plants onevery stumps, 160%-270% higher than other measures. But there were 2.1-3.0 suckers by the other four measures, which could satisfy the need of forest regeneration. There were 3.8-6.0 sprouts on every stump by measures of semicircle furrow, stump barking, stump hacked and the control, the sprouts grew well and with high biomass, and could be used by Robinia pseudoacacia for short period. The regeneration effect and cost ofproduction were comprehensively considered, stump excavated out was the best measure for regeneration of Robinia pseudoacacia forest, semicircle furrow, stump barking and stump hacked were inappropriate, the measure of the control was better if forest tending was carried out in time.

关 键 词：刺槐 人工促进更新 萌芽更新 根蘖更新 

分 类 号：S718.1[农业科学—林学]