Tree Species Composition and Diversity of 34 Year-old Schima superba Forest by AMPR Based on Stratification

doi:10.13466/j.cnki.lyzygl.2019.03.016

Abstract

Abstract:

The tree stratum of 34- year-old Schima superba forest by AMPR(Artificial Measures Promoting Regeneration) was stratified obviously to 2 sub-strata(sub-stratum I and sub-stratum II) by MLRP(Maximum Light Receiving Plane) method.The tree height in sub-stratum I was higher than or equal to 16.5 m.It was typical S.superba community which was composed by 33 tree species and the important value of S.superba(the dominant tree species) was 26.68%.There were 8 and 30 tree species in sub-stratum I and sub-stratum II respectively.The important value of S.superba(the absolutely dominant tree species) in sub-stratum I was 49.77%.Its species richness(R),Shannon-Wiener index(SW),evenness(E) and ecological dominance(ED) in tree stratum were 33,4.37,0.87 and 0.08 respectively.Which in sub-stratum I were 8,2.40,0.48 and 0.26 respectively and in sub-stratum II were 30,4.41,0.88 and 0.06 respectively.Its average stand DBH,height,density and growing stock in tree stratum were 14.2 cm,18.4 m,1 875 N/hm² and 262.9 m³/hm² respectively.Its average stand DBH in sub-stratum I and sub-stratum II were 23.9 cm and 9.6 cm respectively.Its average stand height in sub-stratum I and sub-stratum II were 21.9 m and 12.1 m respectively.Its percentage of stand density in sub-stratum I and sub-stratum II were 23.0% and 77.0% respectively.Its percentage of growing stock in sub-stratum I and sub-stratum II were 75.2% and 24.8% respectively.

Key words: Artificial Measures Promoting Regeneration(AMPR), Schima superba forest, tree species composition, species diversity, Maximum Light Receiving Plane(MLRP) method

CLC Number:

S718.54

LI Zhiming. Tree Species Composition and Diversity of 34 Year-old Schima superba Forest by AMPR Based on Stratification[J]. FOREST RESOURCES WANAGEMENT, 2019, (3): 94-98.

Figures/Tables 4

Tab.1

Importance value of tree species in each sub-stratum in 34 year-old S.superba forest by AMPR%

林层	序号	树种	相对多度	相对频度	相对优势度	重要值
乔木层	1	木荷Schima superba	20.54	9.86	49.65	26.68
	2	东南野桐Mallotus lianus	7.14	5.63	7.98	6.92
	3	蚊母树Distylium myricoides	9.82	5.63	3.65	6.37
	4	南酸枣Choerospondias axillaris	3.57	4.23	8.73	5.51
	5	杉木Cunninghamia lanceolata	5.36	5.63	4.88	5.29
	6	薄叶山矾Symplocaceae anomala	4.46	5.63	1.92	4.01
	7	山矾Symplocos sumuntia	3.57	5.63	0.80	3.33
	8	石笔木Tutcheria champion	5.36	2.82	1.70	3.29
	9	野含笑Michelia skinneriana	4.46	4.23	0.96	3.22
	10	杜英Elaeocarpus decipiens	2.68	4.23	2.42	3.11
	11	浙江桂Cinnamomum chekiangense	2.68	2.82	3.27	2.92
	12	少叶黄杞Engelhardtia fenzelii	2.68	2.82	2.85	2.78
		其他21种树种	27.68	40.84	11.19	26.58
第Ⅰ亚层
	1	木荷Schima superba	44.00	41.18	64.14	49.77
	2	南酸枣Choerospondias axillaris	16.00	17.65	12.91	15.52
	3	东南野桐Mallotus lianus	16.00	11.76	10.45	12.74
	4	浙江桂Cinnamomum chekiangense	8.00	5.88	4.25	6.04
	5	杉木Cunninghamia lanceolata	4.00	5.88	3.64	4.51
	6	中华杜英Elaeocarpus chinensis	4.00	5.88	2.16	4.01
	7	杜英Elaeocarpus decipiens	4.00	5.88	1.67	3.85
	8	蓝果树Nyssa sinensis	4.00	5.88	0.77	3.55
第Ⅱ亚层
	1	木荷Schima superba	13.79	8.33	19.43	13.85
	2	蚊母树Distylium myricoides	12.64	6.67	11.25	10.19
	3	杉木Cunninghamia lanceolata	5.75	6.67	7.46	6.63
	4	薄叶山矾Symplocaceae anomala	5.75	6.67	5.91	6.11
	5	少叶黄杞Engelhardtia fenzelii	3.45	3.33	8.81	5.20
	6	石笔木Tutcheria champion	6.90	3.33	5.25	5.16
	7	山矾Symplocos sumuntia	4.60	6.67	2.46	4.57
	8	野含笑Michelia skinneriana	5.75	5.00	2.97	4.57
	9	福建山矾Symplocos fukienensis	3.45	5.00	2.84	3.76
	10	光叶山矾Symplocaceae lancifolia	3.45	5.00	3.16	3.87
	11	东南野桐Mallotus lianus	4.60	3.33	2.81	3.58
	12	杜英Elaeocarpus decipiens	2.30	3.33	3.98	3.20
		其他18种树种	27.57	36.67	23.67	29.31

Tab.1

Tab.2

Tab.3

Tab.4

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林层	平均胸径/cm	平均树高/m	株数密度		单位面积蓄积量
林层	平均胸径/cm	平均树高/m	绝对值/(株/hm²)	百分比/%	绝对值/(m³/hm²)	百分比/%
乔木层	14.2	18.4	1875	100.0	262.9	100.0
第Ⅰ亚层	23.9	21.9	431	23.0	197.6	75.2
第Ⅱ亚层	9.6	12.1	1444	77.0	65.3	24.8