盐生植物
干旱
自然(考古学)
环境科学
骨料(复合)
土壤盐分
碳纤维
土壤碳
中国
土壤水分
土壤有机质
地球科学
含水量
总有机碳
碱土
土壤科学
水文学(农业)
有机质
农林复合经营
盐度
生态学
环境化学
地质学
地理
化学
生物
材料科学
岩土工程
古生物学
复合数
复合材料
考古
作者
Zhibo Cheng,Jingya Wang,William J. Gale,Haichang Yang,Fenghua Zhang
出处
期刊:Pedosphere
[Elsevier]
日期:2017-08-05
卷期号:30 (2): 236-243
被引量:7
标识
DOI:10.1016/s1002-0160(17)60330-8
摘要
Abstract Information on the effects of halophyte communities on soil organic carbon (SOC) is useful for sequestrating C in arid regions. In this study, we identified four typical natural halophyte communities in the Manasi River Basin in Xinjiang Province, Northeast China, namely, Karelinia caspia (Pall.) Less., Bassia dasyphylla (Fisch. et C. A. Mey.) Kuntze, Haloxylon ammodendron (C. A. Mey.) Bunge, and Tamarix ramosissima Lour. We compared soil aggregation and aggregated-associated SOC under these communities. The aggregate fraction of 0.053–0.25 mm accounted for 47%–75% of the total soil mass, significantly more than the > 0.25 and 0.25 mm aggregates (13.3%–43.8%) and T. ramosissima community having more 0.25 mm fraction, followed by the T. ramosissima (4.9 g kg−1) > K. caspia (4.2 g kg−1) > B. dasyphylla (3.4 g kg−1). The H. ammodendron community had the highest total SOC and aggregate-associated SOC, which was primarily because aggregate-associated SOC content at the 0–10 and 10–20 cm depths under this community were higher than those under other plant communities. The H. ammodendron community could be beneficial for increasing SOC in saline soils in the arid region.
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