在抚育12a、8a和4a后的刺槐林中布设样地，采集枯落物样品，对含水量、吸水速率和持水量指标进行分析，探讨人工抚育对刺槐林地枯落物层持水能力的影响，结果表明：在林木生长郁闭以后，适时抚育可使林地积累更多的枯落物，相对于抚育较晚的林分而言，其枯落物层含水量、吸水速率及持水量提高明显。人工抚育可以有效地提高刺槐林枯落物层的持水能力，促进林分的健康发育，特别是在涵养水源、保持水土、减少地表径流、保持林内水分和湿度等方面的水文效应十分明显。开展抚育可以使刺槐林内生长空间增大，并可提供足够的光照、温度条件，促进枯落物的分解，有利于林木生长。%Setting up the sample plot on the Robinia pseudoacacia forest land which had tended for 12 years, 8 years and 4 years.The litter sample was collected and the water content, water absorption rate and water-holding capacity were ana-lyzed.The effect of artificial tending on the water holding capacity of Robinia pseudoacacia forest land litter layer was dis-cussed.The result showed that timely tending can accumulate more litter after forest growth closure.The water content, wa-ter absorption rate and water-holding capacity increased obviously compared with the forest stand which was tended later. The artificial tending can improve the water holding capacity of Robinia pseudoacacia forest land litter layer and health de-velopment of forest stand.Especially the hydrologic effect of water conservation, preserving water and soil, reducing the o-verland runoff, keeping forest moisture and humidity was evident.The tending magnified the growth room of Robinia pseud-oacacia forest land.Furthermore, it provided enough illumination, temperature conditions.It improved the decomposition of litter and forest growth.
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