Distribution Pattern and Species Diversity of Artificial Vegetation Communities in Sandy-hilly Region of Northwest Shanxi Province,China

doi:10.13466/j.cnki.lyzygl.2017.06.011

Abstract

Abstract:

The sandy-hilly region of northwest Shanxi where the severe water erosion and wind erosion happened has the most extremely frail eco-environment of Shanxi province.It’s also important for sand blocking of Jingjintang region.Jiajiayao watershed,located in Youyu County,is one of the most typical ecological fragile areas in sandy-hilly region of north Shanxi province.Based on the field investigation,the composition,structure,distribution,growth characteristics and species diversity among artificial vegetation communities in Jiajiayao watershed were analyzed using the two-way indicator species analysis(TWINSPAN)and detrended correspondence analysis(DCA).The result showed that Pinus tabulaeformis,Pinus sylvestris mongolica,Larix principis-rupprechtii,Populus simonii,Caragana korshinskii and Hippophae rhamnoides were the dominant species of artificial plant communities.Plants in the area had the following problems,Populus simonii degradation,greater proportion of pure forest,high planting density and improper management.Thus,we get the conclusion that in order to enrich the community structure and optimize the ecological function of the plant community,accelerate the renovation of Populus simonii,In the meanwhile,mixed pure forest with arbor,shrub and grass shoud increase with appropriate proportion.The management of artificial vegetation shall be strengthened.Avoiding the effects of excessive human disturbance on plant community development is very important.Moreover,local forestry department should give enough attention to Pinus sylvestris mongolica for its lost natural regeneration ability in study area.

Key words: artificial vegetation, quantitative analysis, species diversity, sandy-hilly region

CLC Number:

Q948
S718.54

ZHANG Luan, GUO Wei, LI Suqing, WANG Xiaojun. Distribution Pattern and Species Diversity of Artificial Vegetation Communities in Sandy-hilly Region of Northwest Shanxi Province,China[J]. FOREST RESOURCES WANAGEMENT, 2017, 0(6): 60-66.

Figures/Tables 5

Tab.1

Fig.1

Tab.2

Characteristics of 13 clusters of planting vegetation in Jiajiayao watershed

群丛序号	海拔/m	坡向	坡度 /(°)	盖度 /%	恢复时间 /a	优势种	主要伴生种	备注
I	1436~1453	半阴,半阳	5~6	25~40	>35	小叶杨	百里香,针茅, 凤毛菊	乔木层平均高度5.9m,平均胸径10.8cm,株行距不规则
Ⅱ	1433~1450	半阴,全阴半阳,全阳	10~15	70~90	>10	沙棘,小叶杨	针茅	乔木层平均高度6.7m,平均胸径12.7cm,株行距不规则灌木层平均高度0.7~1.4m,盖度75%~90%
Ⅲ	1439~1445	半阴,全阴全阳	0~20	20~80	10~20	柠条锦鸡儿, 针茅	白莲蒿	灌木层平均高度1.1~2.3m,盖度20%~80%,株行距1.5m×2.5m,2m×2m,3m×3m
IV	1447~1455	半阴,全阴	4~10	65~80	20~25	华北落叶松, 柠条锦鸡儿	羊草,达乌里胡枝子	乔木层平均高度7.4m,平均胸径12.1cm,株行距2m×3.5m 灌木层平均高度1.6~1.9m,盖度30%~40%,株行距1m×2m
V	1433~1455	半阴,全阴半阳,全阳	5~10	35~85	10~30	油松,柠条锦鸡儿,针茅	达乌里胡枝子,羊草,莓叶萎陵菜	乔木层平均高度6.8m,平均胸径12.7cm,株行距2.5m×4m,2.5m×1.5m,2m×3m 灌木层平均高度1.3~1.7m,盖度10%~60%,株行距1m×4m
Ⅵ	1434~1463	半阳	3~10	30~55	20~25	华北落叶松,针茅	白莲蒿	乔木层平均高度7.3m,平均胸径10.1cm,株行距2.5m×2.5m,2m×3m
Ⅶ	1439~1471	半阴,全阴	3~10	50~60	20~25	华北落叶松,羊草	达乌里胡枝子,蛇莓	乔木层平均高度7.8m,平均胸径10.5cm,株行距1.5m×1.5m,2m×3m
Ⅷ	1439~1482	半阴,半阳全阳	3~11	40~85	10~25	樟子松,柠条锦鸡儿	华北米蒿, 羊草,针茅	乔木层平均高度7.1m,平均胸径13.4cm,株行距2m×3m,3m×3m 灌木层平均高度1.7~2.0m,盖度30%~50%,株行距2m×3m,3m×3m
Ⅸ	1471~1473	全阳	9~13	15~50	10~20	柠条锦鸡儿	百里香,针茅, 冷蒿	灌木层平均高度1.3~2.1m,盖度10%~50%,株行距2m×2m,1.5m×3m
Ⅹ	1436~1452	全阳	5	75~90	10~14	油松,柠条锦鸡儿	华北米蒿, 猪毛蒿	乔木层平均高度3.8m,平均胸径8.0cm,株行距2.5m×4.0m,3m×5m 灌木层平均高度1.2m,盖度35%~75%,株行距1.2m×5m
Ⅺ	1432~1438	全阴,半阳	0~7	10~35	10~12	油松,羊草	猪毛蒿, 华北米蒿	乔木层平均高度2.1m,平均胸径2.9cm,株行距3m×3m,3m×4m
Ⅻ	1434~1457	半阳,全阳	7~15	45~80	25~30	油松,白莲蒿	达乌里胡枝子,阿尔泰狗娃花	乔木层平均高度7.4m,平均胸径12.4cm,株行距2m×2m,2m×3m
XIII	1447~1464	半阴,全阴全阳	6~10	75~85	25~30	油松	林下无植被, 地表裸露	乔木层平均高度8.4m,平均胸径13.7cm,株行距2m×2m,2m×3m,3m×3m

Tab.2

Fig.2

Fig.3

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序号	种名	生态类型	序号	种名	生态类型
1	针茅 Stipa capillata	X	18	决明 Cassia toraLinn	M
2	羊草 Leymus chinensis	XM	19	长芒草 Stipa bungeana	MX
3	华北米蒿 Artemisia giraldii	X	20	野艾蒿 Artemisia lavandulaefolia	XM
4	莓叶委陵菜 Potentilla fragarioides	MX	21	茵陈蒿 Artemisia capillaries	MX
5	冷蒿 Artemisia frigid	X	22	茅香 Hierochloe odorara	M
6	凤毛菊 Saussurea japonica	MX	23	香青兰 Dracocephalum moldavica	M
7	白莲蒿 Artenisia gmelinii	X	24	黄花蒿 Artemisia annua	M
8	车前Plantago asiatica	M	25	油松 Pinus tabulaeformis	M
9	小刺儿菜 Cirsium setosum	XM	26	樟子松 Pinus sylvestris mongolica	M
10	阿尔泰狗娃花 Heteropappus altaicus	X	27	华北落叶松 Larix principis-rupprechtii	M
11	蛇莓 Duchesnea indica	M	28	小叶杨Populus simonii	M
12	猪毛蒿 Artemisia scoparia	XM	29	柠条锦鸡儿 Caragana korshinskii	XM
13	瑞香狼毒 Stellera chamaejasme	MX	30	沙棘 Hippophae rhamnoides	MX
14	蒲公英 Taraxacum mongolicum	M	31	达乌里胡枝子 Lespedeza davurica	MX
15	紫苜蓿Medicago sativa	M	32	百里香 Thymus mongolicus	X
16	异叶敗酱 Patrinia heterophylla	MX
17	北柴胡 Bupleurum chinense	MX