Arid
DOI10.3724/SP.J.1226.2019.00116
The establishment and development of Haloxylon ammodendron promotes salt accumulation in surface soil of arid sandy land
Su, YongZhong; Liu, TingNa; Kong, JunQia
通讯作者Su, YZ
来源期刊SCIENCES IN COLD AND ARID REGIONS
ISSN1674-3822
出版年2019
卷号11期号:2页码:116-125
英文摘要Haloxvlon ammodendron, a representative C, succulent xerophyte and salt-secreting plant, is widely used in vegetation reestablishment programs to stabilize shifting sand, and is one of the dominant shrubs in the shelter belt used to control desertification in the desert-oasis ecotone in northwestern China. In this study, we collected soil samples in an age sequence of 0-, 2-, 5-, 13-, 16-, 31-, and 39-year-old H. ammodendron plantations to assess the effects of the shrub on soil fertility and salinity. Results show that SOC and total N concentrations increased significantly with increasing plantation age and increased 5.95- (in the interspaces) to 9.05-fold (under the canopy) and 6.15- to 8.46-fold at the 0-5 cm depth at the 39-year-old plantation compared with non-vegetated sandy land. Simultaneously, H. ammodendron establishment and development resulted in significant salt accumulation in the surface layer. On average, total soil salt content at the 0-5 cm and 520 cm depth increased 16.8-fold and 4.4-fold, respectively, compared with non-vegetated sandy land. The increase of total salt derived mostly from the accumulation of SO42- , Ca2+ and Na+ with H. ammodendron development. The accumulation in salinity was more significant than the increase in fertility, suggesting that improved soil fertility did not limit the impact of salinization. The adverse effect of salt accumulation may result in H. ammodendron plantation degradation and impact community stability in the long run.
英文关键词Haloxylon ammodendron soil salt and its component soil organic carbon plantation chronosequence sandy land in desert-oasis ecotone
类型Article
语种英语
收录类别ESCI
WOS记录号WOS:000466177400002
WOS关键词OASIS-DESERT ECOTONE ; GROWTH
WOS类目Geography, Physical
WOS研究方向Physical Geography
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/333518
作者单位[Su, YongZhong; Liu, TingNa; Kong, JunQia] Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Northwest Inst Ecoenvironm & Resources, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714
Su, YongZhong,Liu, TingNa,Kong, JunQia. The establishment and development of Haloxylon ammodendron promotes salt accumulation in surface soil of arid sandy land[J],2019,11(2):116-125.
APA Su, YongZhong,Liu, TingNa,&Kong, JunQia.(2019).The establishment and development of Haloxylon ammodendron promotes salt accumulation in surface soil of arid sandy land.SCIENCES IN COLD AND ARID REGIONS,11(2),116-125.
MLA Su, YongZhong,et al."The establishment and development of Haloxylon ammodendron promotes salt accumulation in surface soil of arid sandy land".SCIENCES IN COLD AND ARID REGIONS 11.2(2019):116-125.
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