干旱区生态环境知识资源中心(Arid): 近10年青海湖东沙地人工植被群落特征

Arid

	近10年青海湖东沙地人工植被群落特征
其他题名	Features of artificial plant communities from the east sand region of the Qinghai Lake over the last 10 years
	吴汪洋 1; 张登山 2; 田丽慧 3; 张明远 1; 周鑫 4
来源期刊	生态学报
ISSN	1000-0933
出版年	2019
卷号	39 期号:6 页码:2109-2121
中文摘要	植物治沙是高寒沙地植被重建与生态恢复的重要措施,人工植被群落特征的研究揭示了植被对高寒沙地生态环境的适应性与改良性,有益于筛选高寒沙地治沙物种。20082017年,通过对青海湖湖东沙地人工治理沙丘上的11种人工植被(沙棘(Hippophae rhamnoides)、乌柳(Salphalix cheilophila)、樟子松(Pinus sylvestris)、小叶杨(Populus simonii)、柠条(Caragana korshinskii)、沙蒿(Artemisia desertorum)、花棒(Hedysarum scoparium)、、沙地柏(Sabina vulgaris)、柽柳(Tamarix chinensis)、青海杉(Picea crassifolia)和金露梅(Potentillalpha fruticosa))进行植被调查和群落特征分析,结果显示:(1)除柽柳、金露梅之外,各人工物种均能保持80%以上的当年成活率和50%以上的保存率,总盖度以每年6.4%8.8%的速度增加,乌柳、小叶杨、柠条和花棒林地群落的丰富度指数、多样性指数和均匀度指数相对较高,而沙棘和樟子松的群落优势度较高;(2)前35年通常为各物种成活与生长的关键期,也是群落形成与多样性增加的快速期;(3)沙棘、乌柳、樟子松、花棒和小叶杨的群落防风固沙效益和土壤水分与养分的改良效益显著,为高寒沙地典型优良的固沙物种。
英文摘要	Artificial introduced plants played an important role in alpine and sandy vegetation reconstruction and recovery. Research on these artificial plant communities has helped in the development of sand-fixing mechanisms and ecological improvements ; especially in the optimization of adaptive vegetation species. From 2008 to 2017,we selected 11 artificially transplanted species in the east sand area of Qinghai Lake to study. Vegetation sample surveys were performed every summer, and plant growth and community forming features were calculated and analyzed with the following three main results : (1) The majority of species, with the exception of Tamarix chinensis and Potentilla fruticosa,showed high survival rates above 80 percent and conservation rates of over 50 percent through the entire study period. Some species, e.g., Hippophae rhamnoides , Salix cheilophila,Pinus sylvestris, Populus simonii, and Hedysarum scoparium, with their fast-growing heights and canopy diameters, exhibited strong adaptability to alpine-sand ecology. Also, the coverages of all plant communities increased significantly, at a rate of 6.4 percent to 8.8 percent a year, with obvious benefits to the recovery of the sand ecosystem. In species diversity, Caragana korshinskii,S. cheilophila,H. scoparium, and P. simonii all had a relatively high diversity indexes including the Simpson’s index, the Shannon-Weiner index, the Margalef richness index and Pielou evenness index. H. rhamnoides and P. sylvestris had remained dominant and constructive in the plant community.(2) The first three to five years were key to plant survival and growth. This period also displayed rapid growth of the forming community and increasing plant diversity. (3) H. rhamnoides,S. cheilophila,P. sylvestris,H. scoparium,and P. simonii should be selected as pioneer species to control desertification and recover plant ecosystems because of their strong benefits in terms of wind-sand prevention and soil amelioration. Other species could be subsidiary plants during vegetation reconstruction and recovery in all alpine-sand areas.
中文关键词	高寒沙地 ; 人工物种 ; 生长特征 ; 群落多样性 ; 年变化
英文关键词	alpine sand artificial introduced plants growth feature community diversity annual change
语种	中文
国家	中国
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6467740
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239421
作者单位	1.北京师范大学地理科学学部, 北京 100875, 中国; 2.北京师范大学地理科学学部;;青海大学农林科学院, ;;, ;;西宁, 北京;; 100875;;810016, 中国; 3.青海大学, 青海省部共建三江源生态和高原农牧业国家重点实验室, 西宁, 青海 810016, 中国; 4.青海大学农林科学院, 西宁, 青海 810016, 中国
推荐引用方式 GB/T 7714	吴汪洋,张登山,田丽慧,等. 近10年青海湖东沙地人工植被群落特征[J]. 北京师范大学,2019,39(6):2109-2121.
APA	吴汪洋,张登山,田丽慧,张明远,&周鑫.(2019).近10年青海湖东沙地人工植被群落特征.生态学报,39(6),2109-2121.
MLA	吴汪洋,et al."近10年青海湖东沙地人工植被群落特征".生态学报 39.6(2019):2109-2121.