Abundance and diversity of soil beetles on the forest floor in different aged poplar plantations

doi:10.12302/j.issn.1000-2006.202203058

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (6): 236-242.doi: 10.12302/j.issn.1000-2006.202203058

Abundance and diversity of soil beetles on the forest floor in different aged poplar plantations

YAN Zhengming¹(), RUAN Honghua¹^,^*(), LIAO Jiahui¹, SHI Ke¹, NI Juanping¹, CAO Guohua², SHEN Caiqin², DING Xuenong², ZHAO Xiaolong², ZHUANG Xin²

1. Co-Innovation Center for Sustainable Forestry in Southern China,College of Ecology and Environment,Nanjing Forestry University,Nanjing 210037,China
2. Dongtai City Forest Farm of Jiangsu Province,Dongtai 224200,China

Received:2022-03-27 Revised:2022-12-31 Online:2023-11-30 Published:2023-11-23

Abstract

Abstract:

【Objective】Beetles, as important biological components of forest ecosystems, can regulate litter decomposition and soil ecological processes. The authors aims to reveal the diversity characteristics of surface beetle communities in different aged poplar plantations and provide scientific support for exploring the structure, function and productivity maintenance for poplar plantations ecosystems.【Method】Poplar plantations of different stand ages (i.e., 6, 9, 12, 15 and 18 years) in the Yellow Sea Forest Park in Dongtai City of Jiangsu Province were selected for research conducted from 2020 to 2021. A pasteurized pot inducement method was used to collect different soil beetles. We investigated soil beetle community composition, structure and diversity characteristics in select poplar plantations.【Result】A total of 1 460 soil beetle specimens were collected during the study period, belonging to seven families and 28 species. The dominant species were Dolichus halensis, Agonum gracilipes, Harpalus chalcentus and Amara gigantea, which accounted for 79.11% of the total individuals. Common species were Harpalus calceatus, Harpalus griseus, Hypera conmaculata, Chlaenius micans, Harpalus amplicollis and Chlaenius costiger, accounting for 15.82% of the total number of individuals, and the remaining 18 species were rare populations, accounting for only 5.07% of the total number of individuals. The 12-year-old poplar plantation had significantly more beetle species and total individuals than other stand ages, while the 18-year-old poplar forest had the lowest. The species diversity of soil beetles varied by 33.83% across all plantation ages. Diversity increased first and then decreased with age of poplar plantation, with maximum and minimum values in the 12-year-old and 18-year-old plantations, respectively. There was no significant difference in beetle diversity in 6-, 9-, and 15-year-old poplar plantations.【Conclusion】Our study clarified that the individual number and species diversity of soil beetles are closely related to the growth and development stages of poplar plantations. Middle-aged stands in the rapid growth and development stage have higher beetle species diversity while mature stages or older stands have lower beetle species diversity. This study provides a theoretical basis for the protection of soil biodiversity in poplar plantations and the sustainable management of plantations.

Key words: poplar plantation, forest age, soil beetle, community structure, community diversity

CLC Number:

S718
Q968

YAN Zhengming, RUAN Honghua, LIAO Jiahui, SHI Ke, NI Juanping, CAO Guohua, SHEN Caiqin, DING Xuenong, ZHAO Xiaolong, ZHUANG Xin. Abundance and diversity of soil beetles on the forest floor in different aged poplar plantations[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2023, 47(6): 236-242.

Figures/Tables 5

Table 1

Table 2

Fig. 1

Table 3

Fig. 2

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林龄/a forest age	平均胸径/cm mean DBH	平均树高/m mean tree height	郁闭度/% crown density
6	17.83±0.34	16.95±1.74	50
9	22.43±0.57	18.04±0.85	60
12	25.98±0.46	19.56±2.04	75
15	27.55±0.68	23.46±1.97	80
18	30.89±2.35	24.01±2.65	65

种 species	不同林龄杨树林地表甲虫数量/只 number of beetles at different ages poplar plantation									合计/只 total		占比/% proportion
种 species	6 a			9 a	12 a		15 a	18 a		合计/只 total		占比/% proportion
蠋步甲Dolichus halensis	199			7	214		28	0		448		30.68
亮足细胫步甲Agonum gracilipes	47			88	73		56	32		296		20.27
铜绿婪步甲Harpalus chalcentus	40			80	85		40	4		249		17.05
巨短胸步甲Amara gigantea	9			24	122		3	1		159		10.89
谷婪步甲Harpalus calceatus	30			20	46		28	5		129		8.84
毛婪步甲Harpalus griseus	6			0	6		15	0		27		1.85
条斑叶象Hypera conmaculata	0			8	10		2	4		24		1.64
黄斑青步甲Chlaenius micans	1			5	0		15	2		23		1.58
红角婪步甲Harpalus amplicollis	0			0	14		2	0		16		1.10
脊青步甲Chlaenius costiger	1			1	11		0	2		15		1.03
双斑锥须步甲Bembidion scopulinum	13			0	0		0	0		13		0.89
射炮步甲Brachinus explodens	0			1	7		3	1		12		0.82
黄鞘婪步甲Harpalus pallidipennis	0			5	3		4	0		12		0.82
绿步甲Carabus smaragdinus	0			5	2		0	0		7		0.48
考氏粪金龟Geotrupes koltzei	0			0	3		2	0		5		0.34
筛胸梳爪叩甲Melanotus cribricollis	0			2	1		1	0		4		0.27
双齿蝼步甲Sacrites acutides	0			3	1		0	0		4		0.27
棒婪步甲Harpalus bungii	0			4	0		0	0		4		0.27
直角婪步甲Harpalus corporosus	0			2	1		0	0		3		0.21
基角胸步甲Peronomerus fumatus	0			0	0		2	0		2		0.14
星斑虎甲Cicindela kaleea		0	0			1	0		0		1	0.07
亚光虎步甲Asaphidion semilucidum		1	0			0	0		0		1	0.07
淡红毛隐甲Crypticus rufipes		1	0			0	0		0		1	0.07
齿棱颚锹甲Prismognathus davidis		1	0			0	0		0		1	0.07
青步甲Isiocarabus fiduciarius		0	1			0	0		0		1	0.07
大星步甲Calosoma maximoviczi		0	0			0	0		1		1	0.07
小边捷步甲Badister marginellus		0	0			0	0		1		1	0.07
中华萝藦叶甲Chrysochus chinensis		0	1			0	0		0		1	0.07
总计total		349	257			600	201		53		1 460	100

项目 item	平方和 sum of squares	df	均方 mean squared	F	P
组间 interblock	33 244.640	4	8 311.160	9.941	< 0.001
组内 intragroup	16 721.200	20	836.060
总计 total	49 965.840	24

Abundance and diversity of soil beetles on the forest floor in different aged poplar plantations

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