干旱区生态环境知识资源中心(Arid): Rock crevices determine woody and herbaceous plant cover in the karst critical zone

Arid

	Rock crevices determine woody and herbaceous plant cover in the karst critical zone
	Liu Hongyan; Jiang Zihan; Dai Jingyu; Wu Xiuchen; Peng Jian; Wang Hongya; Meersmans Jeroen; Green Sophie M; Quine Timothy A
来源期刊	Science China. Earth Sciences
ISSN	1674-7313
出版年	2019
卷号	62 期号:11 页码:1756-1763
英文摘要	The study of the critical zones(CZs) of the Earth link the composition and function of aboveground vegetaton with the characteristics of the rock layers, providing a new way to study how the unique rock and soil conditions in karst regions affect the aboveground vegetation. Based on survey results of the rocks, soils and vegetation in the dolomite and limestone distribution areas in the karst area of central Guizhou, it was found that woody plant cover increases linearly with the number of cracks with a width of more than 1 mm, while the cover of herbaceous plants shows the opposite trend(p<0.01). The dolomite distribution area is characterized by undeveloped crevices, and the thickness of the soil layer is generally less than 20 cm, which is suitable for the distribution of herbaceous plants with shallow roots. Due to the development of crevices in the limestone distribution area, the soil is deeply distributed through the crevices for the deep roots of trees, which leads to a diversified species composition and a complicated structure in the aboveground vegetation. Based on moderate resolution imaging spectroradiometer(MODIS) remote sensing data from 2001 to 2010, the normalized differentiated vegetation index(NDVI) and annual net primary productivity(NPP) results for each phase of a 16-day interval further indicate that the NDVI of the limestone distribution area is sign ificantly higher than that in the dolomite distribution area, but the average annual NPP is the opposite. The results of this paper indicate that in karst CZs, the lithology determines the structure and distribution of the soil, which further determines the cover of woody and herbaceous plants in the aboveground vegetation. Although the amount of soil in the limestone area may be less than that in the dolomite area, the developed crevice structure is more suitable for the growth of trees with deep roots, and the vegetation activity is strong. At present, the treatment of rocky desertification in karst regions needs to fully consider the rock-soil-vegetation-air interactions in karst CZs and propose vegetation restoration measures suitable for different lithologies.
英文关键词	Vegetation composition Vegetation productivity Dolomite Limestone Karst critical zone
类型	Article
语种	英语
开放获取类型	Green Accepted
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:6605482
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336204
作者单位	Liu Hongyan, College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China.; Jiang Zihan, College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China.; Dai Jingyu, College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China.; Peng Jian, College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China.; Wang Hongya, College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface Processes, Peking University, Beijing 100871, China.; Wu Xiuchen, Faculty of Geographical Sciences, Beijing Normal University, Beijing 100875, China.; Meersmans Jeroen, Cranfleld Soil and Agrifood Institute, School of Water, Energy and Environment, Cranfield University, Cranfield, MK43 0AL, England.; Green Sophie M, Geography, CLES, Un...
推荐引用方式 GB/T 7714	Liu Hongyan,Jiang Zihan,Dai Jingyu,et al. Rock crevices determine woody and herbaceous plant cover in the karst critical zone[J],2019,62(11):1756-1763.
APA	Liu Hongyan.,Jiang Zihan.,Dai Jingyu.,Wu Xiuchen.,Peng Jian.,...&Quine Timothy A.(2019).Rock crevices determine woody and herbaceous plant cover in the karst critical zone.Science China. Earth Sciences,62(11),1756-1763.
MLA	Liu Hongyan,et al."Rock crevices determine woody and herbaceous plant cover in the karst critical zone".Science China. Earth Sciences 62.11(2019):1756-1763.