灾后补救措施对雪压毛竹林恢复效果研究

对受灾较重的安徽省黄山区雪压毛竹林灾后补救措施恢复效果的研究结果表明,不同受灾类型和受灾程度,补救措施的效果不同:(1)对中度弯曲竹,斩梢补救效果不明显,而重度弯曲竹,斩梢后,竹秆恢复自然状态的程度明显好于对照竹。(2)对破裂竹,竹秆劈裂程度不同,强度斩梢补救的效果绝然不同。对中度破裂竹,斩梢补救同不处理相比,存活率差异不大,但大大提高了存活竹的生长状况,存活较好的竹株比例由11.1%提高到了44.4%;而对劈裂严重的重度竹,人为干扰处理起到了相反的作用。(3)对翻蔸竹,如果翻蔸程度较轻,基本上均能存活,覆土补救可促进竹株生长;而重度翻蔸竹,只有50%左右能自然存活,覆土处理无论对于存活率和生长状况均有一定效果。

Study on the Recover Effect of Remedial Measures on Moso Bamboo Stands after Frost and Snow Disaster

The effects of remedial measures on moso bamboo stands after frost and snow disaster were studied.The investigated spots were in Huangshan County in Anhui Province where the bamboo was destroyed severely in this disaster.It was shown that the effects produced by remedial measures were different for different damaged styles and degrees.(1) For the moderately bended bamboo,the effect of topmost branches cut was not evident,but for the heavily bended ones,the effect was obvious.(2) For the cracked bamboo,the r...