Dynamic Changes of Undergrowth Species Diversity and Biomass of Eucalyptus robusta Plantations at Different Ages

doi:10.7525/j.issn.1673-5102.2021.04.004

Abstract

Abstract:

By using the spatial replacement time and the typical sampling as methods， taking Eucalyptus robusta plantation in Weiyuan County， Sichuan Province as materials， we comprehensively analyzed the composition of the understory vegetation species and important value， and the aboveground， underground and whole plant biomass of the shrub and herb layers and species diversity index（Shannon-Wiener diversity index H， Simpson dominance index H′， richness index D and Pielou evenness index J_SW）， and explored the dynamic changes of species diversity and biomass of undergrowth vegetation at five different forest ages（4， 5， 6， 7， 8 years） and the correlation between them respectively. The results showed that： A total of 210 species were found， belonging to 79 families and 151 genera， with more species in the herb layer than in the shrub layer. The herb layer of Miscanthus floridulus， Dicranopteris pedata and shrub layer of Melastoma malabathricum and Rubus hastifolius all occupied the dominant position at different ages respectively. With the forest age increasing， the density canopy increased， the D value， H value and H′ value of shrub layer all increased first and then decreased respectively； The D， H and H′ values of the herb layer showed a trend of change of the bimodal curve after increased， then decreased， then increased and then decreased. The biomass of the herb layer increased first and then decreased and then increased， the biomass of shrub layer increased first and then decreased. There was a significant positive correlation between species diversity and biomass， the D and H indices of herb layer were the direct factors affecting biomass. The species distribution， composition， species diversity and biomass of undergrowth vegetation in Eucalyptus robusta plantation were different in response to changes in forest age， showing different dynamic characteristic rules， the results provided data support for Eucalyptus robusta forest management in southwest China.

Key words: forest age, Eucalyptusrobusta plantation, species diversity, biomass, dynamic change

CLC Number:

S792.39

Min WANG, Run-Hui ZHOU, Fei-Yan YU, Hong-Jun DONG, Cong-Lin CHEN, Jing YU, Jian-Feng HAO. Dynamic Changes of Undergrowth Species Diversity and Biomass of Eucalyptus robusta Plantations at Different Ages[J]. Bulletin of Botanical Research, 2021, 41(4): 496-505.

Figures/Tables 6

Table 1

Fig.1

Table 2

Important values of dominant species of shrub and herb layers in E. robusta plantation of different ages

层次 Layer	年龄 Age(a)	优势种 Dominant species
灌木层 Shrub Layer	4	油桐Vernicia fordii(0.1110)+野牡丹Melastomamalabathricum(0.1050)+地桃花Urena lobata(0.0994)+杜茎山Maesa japonica(0.0861)+毛桐Mallotus barbatus(0.0555)
	5	山茶Camellia japonica(0.2174)+戟叶悬钩子Rubus hastifolius(0.1533)+茶Camellia sinensis(0.1149)+楤木Aralia elata(0.0909)+卫矛Euonymus alatus(0.0688)
	6	野牡丹Melastoma malabathricum(0.1060)+铁仔Myrsine Africana(0.0962)+茶Camellia sinensis(0.0897)+山茶Camellia japonica(0.0772)+菝葜Smilax china(0.0561)
	7	楤木Aralia elat(0.2637)+野牡丹Melastoma malabathricum(0.0886)+戟叶悬钩子Rubus hastifolius(0.0865)+桉树E. robusta(0.0785)+铁仔Myrsine africana(0.0645)
	8	桉树E. robusta(0.2408)+野牡丹Melastoma malabathricum(0.1184)+戟叶悬钩子Rubus hastifolius(0.0751)+毛桐Mallotus barbatus(0.0643)+山茶Camellia japonica(0.0580)
草本层 Herb Layer	4	五节芒Miscanthus floridulus(0.1489)+驴蹄草Caltha palustris(0.0643)+斑茅Saccharum arundinaceum(0.0603)+金丝草Pogonatherum crinitum(0.0498)+糯米团Gonostegia hirta(0.0498)
	5	芒萁Dicranopteris pedata(0.3074)+五节芒Miscanthus floridulus(0.2341)+蕨Pteridium aquilinum(0.0744)+驴蹄草Caltha palustris(0.0661)+斑茅Saccharum arundinaceum(0.0533)
	6	芒萁Dicranopteris pedata(0.2956)+五节芒Miscanthus floridulus(0.2669)+白茅Imperata cylindrical(0.1156)+稗Echinochloa crus-galli(0.0691)+东风草Blumea megacephala(0.0463)
	7	五节芒Miscanthus floridulus(0.1819)+芒萁Dicranopteris pedata(0.1586)+白茅Imperata cylindrical(0.0796)+积雪草Centella asiatica(0.0557)+石荠苎Mosla scabra(0.0551)
	8a	五节芒Miscanthus floridulus(0.2263)+紫苏Perilla frutescens(0.1217)+芒萁Dicranopteris pedata(0.0872)+野茼蒿Crassocephalum crepidioides(0.0643)+蕨Pteridium aquilinum(0.0651)

Table 2

Fig.2

Fig.3

Table 3

References 28

1	张柳桦，齐锦秋，柳苹玉，等.林分密度对桉树人工林群落结构和物种多样性的影响［J］.西北植物学报，2018，38（1）：166-175.
	Zhang L H，Qi J Q，Liu P Y，et al.Effects of stand density on community structure and species diversity of Eucalyptus robusta plantation［J］.Acta Botanica Boreali-Occidentalia Sinica，2018，38（1）：166-175.
2	杨扬，张喜亭，肖路，等.火灾恢复年限对大兴安岭森林乔灌草多样性及优势种影响［J］.植物研究，2019，39（4）：514-520.
	Yang Y，Zhang X T，Xiao L，et al.Effect of forest-fire rehabilitation time on plant diversity in Daxing’an Mountains，northeastern China［J］.Bulletin of Botanical Research，2019，39（4）：514-520.
3	付威波，彭晚霞，宋同清，等.不同林龄尾巨桉人工林的生物量及其分配特征［J］.生态学报，2014，34（18）：5234-5241.
	Fu W B，Peng W X，Song T X，et al.Biomass and its allocation characteristics of Eucalyptus urophylla × E.grandis plantations at different stand age［J］.Acta Ecologica Sinica，2014，31（18）：5234-5241.
4	潘嘉雯，林娜，何茜，等.我国3个桉树人工林种植区生产力影响因素［J］.生态学报，2018，38（19）：6932-6940.
	Pan J W，Lin N，He Q，et al.Factors influencing the productivity of three Eucalyptus plantation areas in China［J］.Acta Ecologica Sinica，2018，38（19）：6931-6940.
5	温远光，陈放，刘世荣，等.广西桉树人工林物种多样性与生物量关系［J］.林业科学，2008，44（4）：14-19.
	Wen Y G，Chen F，Liu S R，et al.Relationship between species diversity and biomass of Eucalyptus plantation in Guangxi［J］.Scientia Silvae Sinicae，2008，44（4）：14-19.
6	杨昆，管东生.林下植被的生物量分布特征及其作用［J］.生态学杂志，2006，25（10）：1252-1256.
	Yang K，Guan D S.Biomass distribution and its functioning of forest understory vegetation［J］.Chinese Journal of Ecology，2006，25（10）：1252-1256.
7	王瑞华，葛晓敏，唐罗忠.林下植被多样性、生物量及养分作用研究进展［J］.世界林业研究，2014，27（1）：43-48.
	Wang R H，Ge X M，Tang L Z.A review of diversity，biomass and nutrient effect of understory vegetation［J］.World Forestry Research，2014，27（1）：43-48.
8	林开敏，俞新妥，洪伟，等.杉木人工林林下植物对土壤肥力的影响［J］.林业科学，2001，37（S1）：94-98.
	Lin K M，Yu X T，Hong W，et al.Effects of undergrowth plant on soil fertility in Chinese fir plantation［J］.Scientia Silvae Sinicae，2001，37（S1）：94-98.
9	李帅锋，贾呈鑫卓，杨利华，等.林龄对思茅松人工林根系生物量的影响［J］.林业科学研究，2018，31（2）：26-33.
	Li S F，Jia C X Z，Yang L H，et al.Effect of stand age on root biomass in Pinus kesiya var. langbianensis plantation［J］.Forest Research，2018，31（2）：26-33.
10	高润宏，董智，张昊，等.额济纳绿洲胡杨林更新及群落生物多样性动态［J］.生态学报，2005，25（5）：1019-1025.
	Gao R H，Dong Z，Zhang H，et al.Study on regeneration process and biodiversity characteristic of Populus euphratica community in the Ejina Natural Reserve，Inner Mongolia of China［J］.Acta Ecologica Sinica，2005，25（5）：1019-1025.
11	杜虎，曾馥平，王克林，等.中国南方3种主要人工林生物量和生产力的动态变化［J］.生态学报，2014，34（10）：2712-2724.
	Du H，Zeng F P，Wang K L，et al.Dynamics of biomass and productivity of three major plantation types in southern China［J］.Acta Ecologica Sinica，2014，34（10）：2712-2724.
12	张明，李智勇，何友均.人工林与绿色经济［J］.世界林业研究，2013，26（1）：7-11.
	Zhang M，Li Z Y，He Y J.Plantation and green economy［J］.World Forestry Research，2013，26（1）：7-11.
13	刘世荣，杨予静，王晖.中国人工林经营发展战略与对策：从追求木材产量的单一目标经营转向提升生态系统服务质量和效益的多目标经营［J］.生态学报，2018，38（1）：1-10.
	Liu S R，Yang Y J，Wang H.Development strategy and management countermeasures of planted forests in China：transforming from timber-centered single objective management towards multi-purpose management for enhancing quality and benefits of ecosystem services［J］.Acta Ecologica Sinica，2018，38（1）：1-10.
14	Zhou G Y，Morris J D，Yan J H，et al.Hydrological impacts of reafforestation with Eucalyptus and indigenous species：a case study in southern China［J］.Forest Ecology and Management，2002，167（1-3）：209-222.
15	于洋洋，廖博一，程飞，等.不同抚育措施对尾巨桉人工林生长动态及其林下植被多样性的影响［J］.西南林业大学学报，2018，38（5）：58-64.
	Yu Y Y，Liao B Y，Cheng F，et al.Effects of different tending measures on growth dynamics of Eucalyptus urophylla × Eucalyptus grandis plantation and variation of vegetation diversity under forest［J］.Journal of Southwest Forestry University，2018，38（5）：58-64.
16	许宇星，王志超，竹万宽，等.雷州半岛桉树人工林凋落物量和养分循环研究［J］.热带亚热带植物学报，2019，27（4）：359-366.
	Xu Y X，Wang Z C，Zhu W K，et al.Litterfall and nutrient cycling of Eucalyptus plantation with different ages on Leizhou peninsula［J］.Journal of Tropical and Subtropical Botany，2019，27（4）：359-366.
17	任引，彭丹，潘俊忠，等.不同时空尺度下武夷山甜槠林物种多样性与生物量的动态关系［J］.林业科学，2010，46（8）：33-38.
	Ren Y，Peng D，Pan J Z，et al.Relationship between species biodiversity and biomass accumulation in a Castanopsis eyrei forest in Wuyishan mountain under different temporal and spatial scales［J］.Scientia Silvae Sinicae，2010，46（8）：33-38.
18	方精云，王襄平，沈泽昊，等.植物群落清查的主要内容、方法和技术规范［J］.生物多样性，2009，17（6）：533-548.
	Fang J Y，Wang X P，Shen Z H，et al.Methods and protocols for plant community inventory［J］.Biodiversity Science，2009，17（6）：533-548.
19	杨昆，管东生.森林林下植被生物量收获的样方选择和模型［J］.生态学报，2007，27（2）：705-714.
	Yang K，Guan D S.Selection of gaining quadrat for harvesting the undergrowth vegetation and its biomass estimation modeling in forest［J］.Acta Ecologica Sinica，2007，27（2）：705-714.
20	马克平，刘玉明.生物群落多样性的测度方法Ⅰα多样性的测度方法（下）［J］.生物多样性，1994，2（4）：231-239.
	Ma K P，Liu Y M.Measurement of biotic community diversity Ⅰ α diversity（Part 2）［J］.Biodiversity Science，1994，2（4）：231-239.
21	郝建锋，王德艺，李艳，等.不同林分密度下川北白云山地区喜树人工林的群落结构和物种多样性［J］.植物研究，2015，35（5）：772-778.
	Hao J F，Wang D Y，Li Y，et al.Effects of stand density on community structure and species diversity of Camptotheca acuminata plantation in Baiyun Mountain，Mianzhu district，Sichuan province［J］.Bulletin of Botanical Research，2015，35（5）：772-778.
22	朱育锋，肖智华，彭晚霞，等.广西不同龄级桉树人工林植物多样性和群落结构动态变化特征［J］.中南林业科技大学学报，2018，38（12）：38-44.
	Zhu Y F，Xiao Z H，Peng W X，et al.Dynamics of plant diversity and community structure of Eucalyptus plantation at different ages class in Guangxi［J］.Journal of Central South University of Forestry & Technology，2018，38（12）：38-44.
23	Poorter H，Niklas K J，Reich P B，et al.Biomass allocation to leaves，stems and roots：meta-analyses of interspecific variation and environmental control［J］.The New Phytologist，2012，193（1）：30-50.
24	António N，Tomé M，Tomé J，et al.Effect of tree，stand，and site variables on the allometry of Eucalyptus globulus tree biomass［J］.Canadian Journal of Forest Research，2007，37（5）：895-906.
25	Zewdie M，Olsson M，Verwijst T.Above-ground biomass production and allometric relations of Eucalyptus globulus Labill.coppice plantations along a chronosequence in the central highlands of Ethiopia［J］.Biomass and Bioenergy，2009，33（3）：421-428.
26	王丽红，辛颖，邹梦玲，等.大兴安岭火烧迹地植被恢复中植物多样性与生物量分配格局［J］.北京林业大学学报，2015，37（12）：41-47.
	Wang L H，Xin Y，Zou M L，et al.Plants diversity and biomass distribution of vegetation restoration in burned area of Great Xing’an Mountains［J］.Journal of Beijing Forestry University，2015，37（12）：41-47.
27	Huang Y Y，Chen Y X，Castro-Izaguirre N，et al.Impacts of species richness on productivity in a large-scale subtropical forest experiment［J］.Science，2018，362（6410）：80-83.
28	孙玉军，马炜，刘艳红.与物种多样性有关的长白落叶松人工林生物量［J］.生态学报，2015，35（10）：3329-3338.
	Sun Y J，Ma W，Liu Y H.Biomass of Larix olgensis plantations based on species diversity analyses in Heilongjiang，China［J］.Acta Ecologica Sinica，2015，35（10）：3329-3338.

年龄 Age(a)	样地序号 Plot number	面积 Area (m2)	海拔 Altitude (m)	坡度 Slope (?)	坡向 Aspect	密度 Density (株·hm^-2)	郁闭度 Conopy density	平均树高 Average height (m)	平均胸径 Average diameter(cm)
4	1~4	20×30	733~739	23~28	西北NW	1012.0±4.00a	0.208±0.01e	7.43±0.49d	6.93±0.23e
5	5~8	20×30	666~694	9~23	正北North	970.5±10.53b	0.295±0.03d	11.35±0.49c	11.55±0.5d
6	9~12	20×30	677~717	6~10	正南South	928.8±8.14c	0.420±0.02c	16.30±0.48b	13.63±0.3c
7	13~16	20×30	564~580	21~29	正东East	900.00	0.535±0.02b	19.98±0.21a	16.30±0.2b
8	17~20	20×30	706~714	9~17	东南SW	895.8±4.25d	0.705±0.02a	20.83±0.19a	18.98±0.4a

		灌木层Shrub layer			草本层Herb layer
		地上生物量 Aboveground biomass	地下生物量 Underground biomass	地上+地下 Total biomass	地上生物量 Aboveground biomass	地下生物量 Underground biomass	地上+地下 Total biomass
灌木层 Shrub layer	D	0.53^*	0.48^*	0.52^*	0.09	0.04	0.07
	H	0.44^*	0.33	0.41	0.15	0.01	0.08
	H′	0.24	0.11	0.21	0.22	0.09	0.16
	J_sw	-0.77	-0.18	-0.10	0.07	-0.06	0
	D	0.65^**	0.63^**	0.65^**	0.42	0.46^*	0.47^*
草本层 Herb layer	H	0.42	0.42	0.42	0.35	0.45^*	0.43
	H′	0.21	0.24	0.22	0.33	0.41	0.40
	J_sw	0.05	0.12	0.07	0.09	0.25	0.19

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