长白落叶松人工林林隙间伐对林下更新及植物多样性的影响

被引：34

作者：

张象君

王庆成

郝龙飞

王石磊

机构：

[1] 东北林业大学林学院

来源：

林业科学 | 2011年 / 47卷 / 08期

关键词：

长白落叶松; 人工林; 近自然化改造; 林隙间伐; 均匀间伐; 更新; 植物多样性;

D O I：

暂无

中图分类号：

S753 [森林间伐及抚育];

学科分类号：

090704 ;

摘要：

2009年7月中旬,以佳木斯孟家岗林场间伐8年后的34年生长白落叶松人工纯林为对象,分析均匀间伐、大林隙和小林隙的林下更新和植物多样性。结果表明:与均匀间伐相比,林隙内出现了树高超过1.5m的胡桃楸、山杨和春榆等喜光阔叶树种,大林隙中出现树高超过2m的胡桃楸幼树;林隙内更新树种的个体密度、平均高和平均地径明显增加,大林隙尤为显著(P<0.05);林隙内木本植物的Simpson多样性指数和盖度均显著高于均匀间伐(P<0.05);与小林隙相比,大林隙内木本和草本植物盖度均显著增加(P<0.05);木本植物竞争种的重要值表现为大林隙>小林隙>均匀间伐,耐胁迫种的重要值相反(P<0.05);大林隙内1年生草本植物的重要值显著高于小林隙和均匀间伐(P<0.05),多年生草本植物则相反(P<0.05);大林隙Grime'功能群中杂草种的重要值高于小林隙和均匀间伐,耐胁迫种则相反(P<0.05);小林隙与均匀间伐的草本植物不同生活型及Grime'功能群的组成差异不明显(P>0.05);林隙间伐结合均匀间伐可以将长白落叶松人工纯林改造成长白落叶松针阔混交异龄林,较单独实施均匀间伐更有利于林下更新和植物多样性的提高,间伐林隙应以大林隙为宜(120～150m2)。

引用

页码：7 / 13

页数：7

共 34 条

[1]

Feasibility of implementing thinning in even-aged Larix olgensis plantations to develop uneven-aged larch–broadleaved mixed forests.[J].Jiaojun Zhu;Kai Yang;Qiaoling Yan;Zugen Liu;Lizhong Yu;Hexin Wang.Journal of Forest Research.2010, 1

[2] Short-term effects of selection and clear cutting on the shrub and herb layer vegetation during the conversion of even-aged Norway spruce stands into mixed stands [J].

Heinrichs, Steffi ;

Schmidt, Wolfgang .

FOREST ECOLOGY AND MANAGEMENT, 2009, 258 (05) :667-678

[3] Evaluating different harvest intensities over understory plant diversity and pine seedlings, in a Pinus pinaster Ait. natural stand of Spain [J].

Gonzalez-Alday, J. ;

Martinez-Ruiz, C. ;

Bravo, F. .

PLANT ECOLOGY, 2009, 201 (01) :211-220

[4] Patterns in spatial extent of gap influence on understory plant communities [J].

Fahey, Robert T. ;

Puettmann, Klaus J. .

FOREST ECOLOGY AND MANAGEMENT, 2008, 255 (07) :2801-2810

[5] Effects of site preparation on emergence and early establishment of Larix olgensis in montane regions of northeastern China [J].

Zhu, J. J. ;

Liu, Z. G. ;

Wang, H. X. ;

Yan, Q. L. ;

Fang, H. Y. ;

Hu, L. L. ;

Yu, L. Z. .

NEW FORESTS, 2008, 36 (03) :247-260

[6] Overstory response to alternative thinning treatments in young Douglas-fir forests of western Oregon [J].

Davis, Liane R. ;

Puettmann, Klaus J. ;

Tucker, Gabriel F. .

NORTHWEST SCIENCE, 2007, 81 (01) :1-14

[7]

Effect of gap size created by thinning on seedling emergency; survival and establishment in a coastal pine forest.[J].Jiao-jun Zhu;Takeshi Matsuzaki;Feng-qin Lee;Yutaka Gonda.Forest Ecology and Management.2003, 1

[8] The target tree management system [J].

Abetz, P ;

Klädtke, J .

FORSTWISSENSCHAFTLICHES CENTRALBLATT, 2002, 121 (02) :73-82

[9]

The transformation of conifer forests in Britain — regeneration; gap size and silvicultural systems.[J].D.C. Malcolm;W.L. Mason;G.C. Clarke.Forest Ecology and Management.2001, 1

[10] Treefall gaps and the maintenance of species diversity in a tropical forest [J].

Schnitzer, SA ;

Carson, WP .

ECOLOGY, 2001, 82 (04) :913-919

← 1 2 3 4 →