南亚热带米老排人工林皆伐迹地天然更新研究
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摘要
基于南亚热带米老排人工林落种后皆伐迹地的天然更新调查资料,对其皆伐迹地天然更新幼树的树种、起源、数量、空间格局、分布频度和树高结构进行研究,结果表明:(1)皆伐迹地上绝大多数的天然更新树种为米老排树种;(2)在0~10 m空间尺度内,米老排种子更新幼树的分布为聚集分布(P<0.01);(3)米老排种子更新幼树的数量和频度,可达到森林天然更新的良级标准,亦符合采伐迹地人工更新成林的验收标准;(4)种子天然更新幼树树高的分布近似正偏山状的weibull密度函数;(5)在米老排人工林皆伐作业后1.5年左右,对采伐迹地天然更新幼树进行间苗定株较为适宜;(6)对米老排人工林适时适地的采用小面积皆伐、非炼山方式清理迹地剩余物、保护和利用迹地天然更新幼树的方式,可有效实现采伐迹地的森林更新。
Based on surveyed data of natural regeneration on clearcut land of Mytilaria laosensis plantation, while which seeds were matured and fell, in the south subtropical of china. Tree species, origin, quantity, spatial distribution pattern, distribution frequency and height structure of the natural regeneration on the clearcut land, which were analyzed, and results showed that:(1) on the clearcut land, the most majority of tree species of natural regeneration is Mytilaria laosensis tree species;(2) bellow the scale of 10 m, natural regeneration seedling was aggregation distribution(P < 0.01);(3) the quantity and frequency of seedling, which not only can reach the standard of a good level of the forest natural regeneration, but also meet the acceptance criteria of artificial regeneration on the clearcut land;(4)the distribution density function of tree height class of natural regeneration with sapling seed, which is approximate to Weibull density function with partial mountain shape;(5)it is a good time to thinning the natural regeneration seedlings, in about 1.5 years after clear cutting of the plantation;(6) it can made effective natural regeneration on the small area clear-cutting land of Mytilaria laosensis plantation, while seed maturity and falling, by using clear-cutting, no burning and manually disposing of forest harvesting slash on clearcut overland, protecting and utilizing natural regeneration of sapling on the clearcut land.
Based on surveyed data of natural regeneration on clearcut land of Mytilaria laosensis plantation, while which seeds were matured and fell, in the south subtropical of china. Tree species, origin, quantity, spatial distribution pattern, distribution frequency and height structure of the natural regeneration on the clearcut land, which were analyzed, and results showed that:(1) on the clearcut land, the most majority of tree species of natural regeneration is Mytilaria laosensis tree species;(2) bellow the scale of 10 m, natural regeneration seedling was aggregation distribution(P < 0.01);(3) the quantity and frequency of seedling, which not only can reach the standard of a good level of the forest natural regeneration, but also meet the acceptance criteria of artificial regeneration on the clearcut land;(4)the distribution density function of tree height class of natural regeneration with sapling seed, which is approximate to Weibull density function with partial mountain shape;(5)it is a good time to thinning the natural regeneration seedlings, in about 1.5 years after clear cutting of the plantation;(6) it can made effective natural regeneration on the small area clear-cutting land of Mytilaria laosensis plantation, while seed maturity and falling, by using clear-cutting, no burning and manually disposing of forest harvesting slash on clearcut overland, protecting and utilizing natural regeneration of sapling on the clearcut land.
引文
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[15]张金屯.植物种群空间分布的点格局分析[J].植物生态学报,1998,22(4):344-349.
[16]常静,潘存德,师瑞锋.梭梭-白梭梭群落优势种种群分布格局及其种间关系分析[J].新疆农业大学学报,2006,29(2):26-29.
[17]李明辉,何风华,潘存德.天山云杉天然林不同林层的空间格局和空间关联性[J].生态学报,2011,31(3):620-628.
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[20]音振兴,李文栋,余洋.尾巨桉萌芽林定株高度试验研究[J].桉树科技,2012,29(2):21-23.
[2]田晓萍.杉木萌芽更新的研究[D].福州:福建农林大学,2008.
[3]李喜霞,刘明国,李海春.朝阳地区人工采伐带内油松天然更新研究[J].沈阳农业大学学报,2003,34(1):35-39.
[4]朱教君,刘足根,王贺新.辽东山区长白落叶松人工林天然更新障碍分析[J].应用生态学报,2008,19(4):695-703.
[5]韩有志,王政权.森林更新与空间异质性[J].应用生态学报,2002,13(5):615-619.
[6]张群,范少辉,沈海龙,等.次生林林木空间结构等对红松幼树生长的影响[J].林业科学研究,2004,11(4):405-412.
[7]连相汝,鲁法典,刘成杰,等.我国人工林天然更新研究进展[J].世界林业研究,2013,26(6):52-58.
[8]罗梅,郑小贤.金沟岭林场落叶松人工林天然更新动态研究[J].中南林业科技大学学报,2016,36(9):7-11.
[9]白灵海,唐继新,明安刚,等.广西大青山米老排人工林经济效益分析[J].林业科学研究,2011,24(6):784-787.
[10]袁洁.米老排的选育与多样性研究[D].北京:中国林业科学研究院,2014.
[11]郭文福,蔡道雄,贾宏炎,等.米老排人工林生长规律的研究[J].林业科学研究,2006,19(5):585-589.
[12]王克建,蔡子良.热带树种栽培技术[M].南宁:广西科学技术出版社,2008.
[13]熊炀.赣南米老排天然更新调查[J].现代园艺,2015(2):18.
[14]王娜,郝清玉.森林天然更新影响因子研究进展[J].广东农业科学,2012(6):68-70.
[15]张金屯.植物种群空间分布的点格局分析[J].植物生态学报,1998,22(4):344-349.
[16]常静,潘存德,师瑞锋.梭梭-白梭梭群落优势种种群分布格局及其种间关系分析[J].新疆农业大学学报,2006,29(2):26-29.
[17]李明辉,何风华,潘存德.天山云杉天然林不同林层的空间格局和空间关联性[J].生态学报,2011,31(3):620-628.
[18]于汝元,黄晓鹤,哈达,等.东北林区森林更新调查及评定中的问题[J].北京林业大学学报,1990,12(增刊3):46-50.
[19]孟宪宇.测树学[M].第3版.北京:中国林业出版社,2006.
[20]音振兴,李文栋,余洋.尾巨桉萌芽林定株高度试验研究[J].桉树科技,2012,29(2):21-23.