气候变化领域集成服务门户(CCPortal): Influence of Slope Aspect on Plant Community Composition and its Implications for Restoration of a Chinese Mountain Range

CCPortal

DOI	10.15244/pjoes/64458
	Influence of Slope Aspect on Plant Community Composition and its Implications for Restoration of a Chinese Mountain Range
	Qin Yanyan; Holden, Nicholas; Feng Qi; Zhu Meng
发表日期	2017
ISSN	1230-1485
EISSN	2083-5906
卷号	26 期号:1
英文摘要	Excessive human disturbance (e.g., overgrazing, deforestation) has degraded the environment in the Qilian Mountains in China. Vegetative restoration is likely to be a crucial tool to restore these biologically significant habitats, but it is impossible to achieve this goal if the baseline plant community composition and its variation with local environmental conditions were not understood fully. To assess plant community composition by slope aspect, four different aspects south-facing slope (SF), southwest-facing slope (SW), northwest-facing slope (NW), and north-facing slope (NF) were surveyed on three almost non-degraded mountains. The results showed that each slope aspect has different abiotic environments. From SF to NF, soil water content has an increasing trend, but it shows no difference between SF and SW; and daily soil temperature and pH have a decreasing trend, while the former shows no difference between SF and SW, and SW and NW; and the latter shows no difference between SW and NW; and soil organic carbon was significantly increased, but soil bulk density was significantly decreased. Herbaceous plants were dominant on SF, SW, and NW, and trees (Picea crassifolia) were dominant on NE From SF to NW, the dominant herbaceous plants were Agropyron cristatum and Stipa grandis, Agropyron cristatum and Carex aridula, and Kobresia humilis and Carex crebra, respectively, while on NF they were Carex spp. and Polygonum macrophyllum. The baseline survey points to the need to consider underlying patterns in abiotic conditions when planning restoration programs in these degraded mountain habitats, and to select native plants similar to the original vegetation. The survey provides a vital milestone for the development of policy-based funding initiatives and for ongoing vegetation monitoring during restoration to assess if these vegetative targets have been met.
关键词	degradation dominant species ecological restoration Qilian Mountains
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	POLISH JOURNAL OF ENVIRONMENTAL STUDIES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111939
作者单位	Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Alashan Desert Ecohydrol Res Stn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Qin Yanyan,Holden, Nicholas,Feng Qi,et al. Influence of Slope Aspect on Plant Community Composition and its Implications for Restoration of a Chinese Mountain Range[J]. 中国科学院西北生态环境资源研究院,2017,26(1).
APA	Qin Yanyan,Holden, Nicholas,Feng Qi,&Zhu Meng.(2017).Influence of Slope Aspect on Plant Community Composition and its Implications for Restoration of a Chinese Mountain Range.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,26(1).
MLA	Qin Yanyan,et al."Influence of Slope Aspect on Plant Community Composition and its Implications for Restoration of a Chinese Mountain Range".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 26.1(2017).