干旱区生态环境知识资源中心(Arid): Soil properties and herbaceous characteristics in an age sequence of Haloxylon ammodendron plantations in an oasis-desert ecotone of northwestern China

Arid

	Soil properties and herbaceous characteristics in an age sequence of Haloxylon ammodendron plantations in an oasis-desert ecotone of northwestern China
	Zhang Ke; Su Yongzhong; Wang Ting; Liu Tingna
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2016
卷号	8 期号:6 页码:960-972
英文摘要	Haloxylon ammodendron, a typical desert shrub with C4 pathway of photosynthesis, possessing a strong ability to adapt to an extreme drought environment, has a rapid growth rate in sandy lands and is widely used in sand-fixing shelter-forest systems in oasis-desert ecotones. To assess the effects of H. ammodendron plantation on the soil, we measured soil properties and herbaceous characteristics along a nearly 40-year chronosequence after H. ammodendron was planted in shifting sand dunes in an oasis-desert ecotone. Results showed that silt and clay fractions increased significantly in the topsoil. The accumulation rates of soil organic carbon(SOC), total nitrogen(TN)and total phosphorus(TP)were faster in the early stages(0-9 years)and slower in the late stages(9-39 years). The soil pH and electrical conductivity(EC)were higher than those in the non-vegetation dunes. Moreover, the soil properties in the topsoil(0-5 cm)showed larger variation scope than those in the deeper soil layers(5-20 cm). The significant relationships of the soil silt+clay content with the chemical properties mainly appeared in the topsoil. The wind erosion susceptibility of the soil, evaluated by erodible fraction(EF), decreased significantly with increasing H. ammodendron plantation age. Additionally, the annual pioneer herb, Agriophyllum squarrosum, was gradually substituted by the annual salt-tolerant herb, Bassia dasyphylla, with increasing plantation age. These results showed beneficial effects of H. ammodendron plantation on improving soil conditions. However, the dynamics of the herbaceous species also reminded us that the long-term effects of H. ammodendron plantation, especially on changes in vegetation composition, still need further evaluation.
英文关键词	Haloxylon ammodendron soil properties herbaceous erodible fraction oasis-desert ecotone
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:5828504
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335720
作者单位	Zhang Ke, Linze Inland River Basin Research Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Su Yongzhong, Linze Inland River Basin Research Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Wang Ting, Linze Inland River Basin Research Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Liu Tingna, Linze Inland River Basin Research Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.
推荐引用方式 GB/T 7714	Zhang Ke,Su Yongzhong,Wang Ting,et al. Soil properties and herbaceous characteristics in an age sequence of Haloxylon ammodendron plantations in an oasis-desert ecotone of northwestern China[J],2016,8(6):960-972.
APA	Zhang Ke,Su Yongzhong,Wang Ting,&Liu Tingna.(2016).Soil properties and herbaceous characteristics in an age sequence of Haloxylon ammodendron plantations in an oasis-desert ecotone of northwestern China.Journal of Arid Land,8(6),960-972.
MLA	Zhang Ke,et al."Soil properties and herbaceous characteristics in an age sequence of Haloxylon ammodendron plantations in an oasis-desert ecotone of northwestern China".Journal of Arid Land 8.6(2016):960-972.