Enrichment of soil fertility and salinity by tamarisk in saline soils on the northern edge of the Taklamakan Desert
Yin; Chuan Hua; Feng; Gu; Zhang; Fusuo; Tian; Chang Yan; Tang; Caixian; Feng, G, China Agr Univ, Coll Nat Resources & Environm Sci, 2 Yuanmingyuan W Rd, Beijing 100094, Peoples R China
2010
Source PublicationAGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
Volume97Issue:12Pages:1978-1986
AbstractTo better understand the influence of Tamarix spp. (tamarisk shrubs) on soil fertility and salinity and the implication for saline soil management in northwestern China, several soil physical and chemical characteristics were measured beneath tamarisk canopies from the upper, middle, and lower regions of the Taklamakan Desert alluvial plain. The measured properties included soil organic matter (SOM), plant-available phosphorus (P), extractable soil potassium (K) soil electric conductivity (EC), sodium (Na+), total potassium (K+), and pH. The enrichment ratios for soil nutrients (i.e., available P. extractable K, and SOM) and salinity (i.e., EC, Na+, K+, and pH) were used to evaluate fertility and salinity islands in tamarisk mounds. SOM, available P, and extractable K were higher within mounds than in open, tamarisk-free land in each of the three sampled locations. The SOM enrichment ratios were highest at the middle region of the alluvial plain and lowest at the lower region of the alluvial plain, a pattern that is consistent with the growth patterns of tamarisk plants. The variation in SOM enrichment ratios in surface soils was mainly affected by the shoot biomass of tamarisk shrubs. The positive effect of tamarisk on soil fertility indicates that tamarisk may be beneficial for vegetation restoration and improving utilization of saline land. Nevertheless, soil salinity and pH increased under tamarisk canopy, especially EC and K+ in surface soil from the middle alluvial plain. The EC enrichment ratio was highest in the middle alluvial plain and, depending on soil depth, lowest in the upper and lower alluvial plain. These results reflect negative effects of tamarisk on soil chemical characteristics. (C) 2009 Elsevier B.V. All rights reserved.
Department[Yin, Chuan Hua; Feng, Gu; Zhang, Fusuo] China Agr Univ, Coll Nat Resources & Environm Sci, Beijing 100094, Peoples R China; [Yin, Chuan Hua; Feng, Gu; Tian, Chang Yan] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Oasis Ecol & Desert Environm, Urumqi 830011, Peoples R China; [Tang, Caixian] La Trobe Univ, Dept Agr Sci, Bundoora, Vic 3086, Australia
KeywordWater Relations New-mexico Vegetation Saltcedar Ecosystem Usa Ramosissima Mechanisms Invasions Islands
Subject Area植物生态学
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.xjlas.org/handle/365004/9872
Collection中国科学院新疆生态与地理研究所(2010年以前数据)
Corresponding AuthorFeng, G, China Agr Univ, Coll Nat Resources & Environm Sci, 2 Yuanmingyuan W Rd, Beijing 100094, Peoples R China
Recommended Citation
GB/T 7714
Yin,Chuan Hua,Feng,et al. Enrichment of soil fertility and salinity by tamarisk in saline soils on the northern edge of the Taklamakan Desert[J]. AGRICULTURAL WATER MANAGEMENT,2010,97(12):1978-1986.
APA Yin.,Chuan Hua.,Feng.,Gu.,Zhang.,...&Feng, G, China Agr Univ, Coll Nat Resources & Environm Sci, 2 Yuanmingyuan W Rd, Beijing 100094, Peoples R China.(2010).Enrichment of soil fertility and salinity by tamarisk in saline soils on the northern edge of the Taklamakan Desert.AGRICULTURAL WATER MANAGEMENT,97(12),1978-1986.
MLA Yin,et al."Enrichment of soil fertility and salinity by tamarisk in saline soils on the northern edge of the Taklamakan Desert".AGRICULTURAL WATER MANAGEMENT 97.12(2010):1978-1986.
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