江西千烟洲人工针叶林下狗脊蕨群落生物量

doi:10.3773/j.issn.1005-264x.2008.01.010

摘要/Abstract

摘要：

根据野外调查和实验分析研究了江西省千烟洲人工针叶林下狗脊蕨(Woodwardia japonica)群落的生物量、细根生物量、净初级生产力(Net primary productivity, NPP)、比叶面积(Specific leaf area, SLA)和叶面积指数(Leaf area index, LAI)等。通过叶片参数和地上生物量的相关关系建立了狗脊蕨单株地上生物量估算模型,分别为W1=0.021H¹^.⁵⁴⁵(R²=0.790)和W1=2.518(D²H)^0.616(R²=0.894;H为株高,D为地径)。人工针叶林下灌草层地上生物量为367.8 g·m^-2(52~932 g·m^-2),凋落物为1 631 g·m^-2(672~2 763 g·m^-2),分别占乔木层地上生物量的4.7%(1.55%~13.2%)和20.7%(7.6%~32.1%)。狗脊蕨群落地上生物量和NPP分别为266.6 g·m^-2和88.67 g·m^-2·a^-1,其中狗脊蕨种群占73.7%;地下生物量为212.6 g·m^-2。狗脊蕨的SLA和叶干物质含量(Leaves day mutter content, LDMC)分别为144.0 cm²·g^-1和31.99%,二者之间呈显著负相关;最佳叶面积估算模型为S=21.922 6-0.152L²+0.000 9L³(9.0≤L(叶片长度)≤23.5;1.4≤W(叶片宽度)≤5.9)。狗脊蕨种群的LAI为1.8。土壤含水量对狗脊蕨生物量有显著影响。群落生物量与土壤有机质和全氮含量正相关。

关键词: 狗脊蕨, 生物量, 生物量模型, 叶面积模型, 比叶面积, 叶面积指数

Abstract:

Aims The purpose of the study was to determine the biomass (including fine roots), NPP, specific leaf area (SLA), leaf area index (LAI), and soil nutrients of Woodwardia japonica community under artificial coniferous forest in Jiangxi Province in subtropical China.
Methods Plants in quadrats were harvested and dry weight was measured. Leaf area was measured by scanning, and SLA was represented by the ratio of dry matter to leaf area. LAI of the population was estimated by SLA and leaf biomass.
Important findings The relationships between aboveground biomass (W1) and geometric parameters of W. japonica were established (W1=0.021H ^1.545(R²=0.790) and W1=2.518(D ²H)^0.616(R²=0.894), H: height; D: diameter). The biomass of herbage and shrub under coniferous plantation was 367.8 g·m^-2(52-932 g·m^-2), 4.7% of canopy layer. The accumulated litter under forest was 1 631 g·m^-2(672-2 763 g·m^-2). The above- and under-ground biomass of W. japonica community were 266.6 g·m^-2 and 212.6 g·m^-2, respectively. In total, the biomass of W. japonica population approximately accounted for 73.7% of the whole herbaceous layer. There was a significant negative-correlation between SLA and leaves dry matter content (LDMC). A leaf area (S) model was established in the form of S=21.922 6-0.152L ²+0.000 9L³(9.0≤L: max length of leaf ≤23.5;1.4 ≤ W: max width of leaf ≤5.9).LAI of W. japonica population was estimated as 1.8 m²·m^-2. Soil water content affected biomass of the community. A positive correlation between biomass and soil nitrogen concentration or soil organic matter (SOC) was identified.

Key words: Woodwardia japonica, biomass, biomass model, leaf area model, SLA, LAI

马泽清, 刘琪王景, 徐雯佳, 李轩然, 刘迎春. 江西千烟洲人工针叶林下狗脊蕨群落生物量. 植物生态学报, 2008, 32(1): 88-94. DOI: 10.3773/j.issn.1005-264x.2008.01.010

MA Ze-Qing, LIU Qi-Jing, XU Wen-Jia, LI Xuan-Ran, LIU Ying-Chun. A PRELIMINARY STUDY ON BIOMASS OF WOODWARDIA JAPONICA COMMUNITY UNDER A CONIFEROUS PLANTATION IN SUBTROPICAL CHINA. Chinese Journal of Plant Ecology, 2008, 32(1): 88-94. DOI: 10.3773/j.issn.1005-264x.2008.01.010

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.plant-ecology.com/CN/10.3773/j.issn.1005-264x.2008.01.010

https://www.plant-ecology.com/CN/Y2008/V32/I1/88

图/表 9

参考文献 21

[1]	Chapin FS Ⅲ, Matson P, Mooney HA (2002). Principles of Terrestrial Ecosystem Ecology. Springer-Verlag, New York, 1-436.
[2]	Chen XL (陈遐林), Ma QY (马钦彦) (2002). Studies on the biomass and productivity of typical shrubs in Taiyue Mountain, Shanxi Province. Forest Research (林业科学研究), 15, 300-309. (in Chinese with English abstract)
[3]	Feng ZW (冯宗炜) (1982). Determination of biomass of Pinus massoniana stand in Huitong County, Hunan. Scientia Silvae Sinicae (林业科学), 18, 127-134. (in Chinese with English abstract)
[4]	He YL (何艺玲), Fu MY (傅懋毅) (2002). Review of studies on understorey of plantations. Forest Research (林业科学研究), 15, 727-733. (in Chinese with English abstract)
[5]	Institute of Botany, Chinese Academy of Sciences (中国科学院植物研究所) (1987). China's Higher Plant Illustrated Handbook Ⅰ (中国高等植物图鉴第一册). Science Press, Beijing, 218-219. (in Chinese)
[6]	Li XR (李轩然), Liu QJ (刘琪王景), Cai Z (蔡哲), Ma ZQ (马泽清) (2007). Specific leaf area and leaf area index of conifer plantations in Qianyanzhou station of subtropical China. Journal of Plant Ecology (Chinese Version) (植物生态学报), 31, 93-101. (in Chinese with English abstract)
[7]	Li YL (李玉霖), Cui JY (崔建垣), Su YZ (苏永忠) (2005). Specific leaf area and leaf dry matter content of some plants in different dune habitats. Acta Ecologica Sinica (生态学报), 25, 304-311. (in Chinese with English abstract)
[8]	Liu GH (刘国华), Zhang JY (张洁瑜) (2003). Distribution regulation of aboveground biomass of three main shrub typesin the dry valley of Minjiang River. Journal of Mountain Research (山地学报), 21, 24-32. (in Chinese with English abstract)
[9]	Liu QJ (刘琪王景), Hu LL (胡理乐), Li XR (李轩然) (2005). Plant diversity in Qianyanzhou after 20 years of small watershed treatment. Acta Phytoecologica Sinica (植物生态学报), 29, 766-774. (in Chinese with English abstract)
[10]	Research Group Evergreen Broad-Leaved Forest in Jiangxi (江西省常绿阔叶林研究课题组) (1996). Jiangxi evergreen broad-leaved forest aboveground biomass research. Jiangxi Forestry (江西林业科技), (2), 1-4. (in Chinese)
[11]	Scientific Investigation Team of Chinese Academy of Sciences for Southern Mountainous Areas, Management Office of Natural Resources in Ji’an Prefecture of Jiangxi Province (中国科学院南方山区综合科学考察队) (1989). Management and Development of Red Hilly Area—Experimental Study in Qianyanzhou (红壤丘陵综合开发治理——千烟洲综合开发治理试验研究). Science Press, Beijing, 1-23. (in Chinese)
[12]	Wright IJ, Westoby M, Reich PB (2002). Convergence towards higher leaf mass per area in dry and nutrient poor habitats has different consequences for leaf life span. Journal of Ecology, 90, 534-543.
[13]	Xu H (胥辉) (1997). Review of forest biomass model. Forest Resource Management (林业资源管理), (5), 33-36. (in Chinese)
[14]	Xu H (胥辉), Wen SJ (文仕军) (2000). Studies on the Eucalyptus camaldulensis biomass in Xerothemic Valley. Journal of Southwest Forestry College (西南林学院学报), 20, 191-195. (in Chinese with English abstract)
[15]	Yan WD (闫文德), Tian DL (田大伦), Jiao XM (焦秀梅) (2003). A study on biomass dynamics and distribution of undervegetation in the secondary generation of Chinese fir plantation in Huitong. Forest Research (林业科学研究), 16, 323-327. (in Chinese with English abstract)
[16]	Yang CD (杨承栋), Jiao RZ (焦如珍) (1995). Developing undergrowth vegetation is an important way to recover soil fertility of Chinese fir plantation. Scientia Silvae Sinicae (林业科学), 31, 267-283. (in Chinese with English abstract)
[17]	Yang FT (杨风亭), Liu JY (刘纪远), Zhuang DF (庄大方), Hu YF (胡云锋) (2004). The preliminarily study on the ecological environment effects of land-use change in red earth hilly area in Southeast China. Progress in Geography (地理科学进展), 23(5), 43-55. (in Chinese with English abstract)
[18]	Yang YS (杨玉盛), Chen GS (陈光水), Lin P (林鹏), Huang RZ (黄荣珍), Chen YX (陈银秀), He ZM (何宗明) (2003). Fine root distribution, seasonal pattern and production in a native forest and monoculture plantations in subtropical China. Acta Ecologica Sinica (生态学报), 23, 1719-1732. (in Chinese with English abstract)
[19]	Zhang HQ (张红旗), Chen YR (陈永瑞), Niu D (牛栋) (2004). Retrieving effective leaf area index of conifer forests using landsat TM images in red soil hilly region. Acta Agriculturae Universitis Jiangxiensis (江西农业大学学报), 26, 159-163. (in Chinese with English abstract)
[20]	Zhang L (张林), Luo TX (罗天祥) (2004). Advances in ecological studies on leaf lifespan and associated leaf traits. Acta Phytoecologica Sinica (植物生态学报), 28, 844-852. (in Chinese with English abstract)
[21]	Zhang XQ (张小全), Wu KH (吴可红) (2001). Fine-root production and turnover for forest ecosystem. Scientia Silvae Sinicae (林业科学), 37(3), 126-138. (in Chinese with English abstract)

林型 Forest type	湿地松林 Pinus elliottii forest					马尾松林 P.massoniana forest
林型 Forest type	1	2	3	4	5	6	7
坡向 Aspect	SUN	SHA	SHA	SUN	SHA	SHA	SHA
坡度 Slope	<15°	<13°	<13°	<3°	<5°	<3°	<15°
郁闭度 Canopy density	0.90	0.85	0.90	0.85	0.92	0.80	0.95

林型 Forest type	湿地松林 Pinus elliottii forest					马尾松林 P.massoniana forest
林型 Forest type	1	2	3	4	5	6	7
坡向 Aspect	SUN	SHA	SHA	SUN	SHA	SHA	SHA
坡度 Slope	<15°	<13°	<13°	<3°	<5°	<3°	<15°
郁闭度 Canopy density	0.90	0.85	0.90	0.85	0.92	0.80	0.95

生物学指标 Biologic items	最小值 Min	最大值 Max	平均值 Mean	标准差 Standard error	观测数 Number
地上生物量 Aboveground biomass (g)	0.6	14.5	5.2	3.33	70
地径Diameter (mm)	1.67	7.38	4.39	1.21	70
高度Height (cm)	16	131	67.7	24.6	70
冠幅Crown width size (cm)	15	49	29.4	7.63	70
叶柄长 Petiole length (cm)	13	59	33	11.53	70

生物学指标 Biologic items	最小值 Min	最大值 Max	平均值 Mean	标准差 Standard error	观测数 Number
地上生物量 Aboveground biomass (g)	0.6	14.5	5.2	3.33	70
地径Diameter (mm)	1.67	7.38	4.39	1.21	70
高度Height (cm)	16	131	67.7	24.6	70
冠幅Crown width size (cm)	15	49	29.4	7.63	70
叶柄长 Petiole length (cm)	13	59	33	11.53	70

	D	H	C	H₁	D²H	B
D	1.00	0.77	0.67	0.68	0.90	0.83
H		1.00	0.77	0.89	0.89	0.86
C			1.00	0.66	0.72	0.82
H₁				1.00	0.81	0.73
D²H					1.00	0.92
B						1.00