Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/15324982.2017.1300613 |
Litter decomposition and nutrient dynamics of three woody halophytes in the Taklimakan Desert Highway Shelterbelt | |
Zhang, Xue-Mei1,2,3; Wang, Yong-Dong1; Zhao, Ying1; Xu, Xin-Wen1; Lei, Jia-Qiang1; Hill, Robert Lee4 | |
通讯作者 | Wang, Yong-Dong ; Zhao, Ying ; Xu, Xin-Wen |
来源期刊 | ARID LAND RESEARCH AND MANAGEMENT |
ISSN | 1532-4982 |
EISSN | 1532-4990 |
出版年 | 2017 |
卷号 | 31期号:3页码:335-351 |
英文摘要 | Litter decomposition is a crucial biogeochemical process for C and nutrient cycling in nutrient-constrained environments, but the controlling factors on litter decomposition in an extremely arid desert region such as the Taklimakan Desert are relatively unknown. To evaluate the litter decomposition and nutrient dynamic characteristics, five primary litter types of three woody halophytes (Haloxylon ammodendron, Calligonum arborescens, and Tamarix ramosissima) along the Taklimakan Desert Highway Shelterbelt were monitored in litterbags during 420 days, when placed on the soil surface and buried by sand, respectively. The results indicated that the decomposition rate decreased in the order of assimilative branches of H. ammodendron (HA, 0.94), branches of T. ramosissima (TB, 0.55), assimilative branches of C. arborescens (CA, 0.53), seeds of C. arborescens (CS, 0.41), and old branches of H. ammodendron (HB, 0.21) in the surface placement. In contrast, the litters buried by sand displayed a significantly accelerated decomposition rate (F = 12.28, P < 0.01), which were 1.3, 1.8, 1.3, 2.3, and 2.8 times of that at surface placement for HA, TB, CA, CS, and HB, respectively. Decomposition of the litters was primarily affected by initial content of C and K, lignin and cellulose in both placements, and varied among decomposition stages and conditions. The old branches of H. ammodendron and branches of T. ramosissima presented P accumulation in both placements, whereas nutrients (N, P, K) and C showed a release pattern during the litter decomposition process, which was influenced by initial litter contents and decomposition rate. |
英文关键词 | Artificial shelterbelt decomposition halophyte litter property nutrient release sand burial |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000406553500007 |
WOS关键词 | SEMIARID PATAGONIAN STEPPE ; NORTHERN CHIHUAHUAN DESERT ; LEAF-LITTER ; PLANT LITTER ; TERRESTRIAL ECOSYSTEMS ; NITROGEN AVAILABILITY ; NEEDLE LITTER ; ROOT LITTER ; QUALITY ; CHEMISTRY |
WOS类目 | Environmental Sciences ; Soil Science |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
来源机构 | 中国科学院新疆生态与地理研究所 ; 新疆大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197554 |
作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, 818 Beijing South Rd, Urumqi, Xinjiang, Peoples R China; 2.Xinjiang Univ, Coll Resources & Environm Sci, Urumqi, Xinjiang, Peoples R China; 3.Univ Chinese Acad Sci, Beijing, Peoples R China; 4.Univ Maryland, Dept Environm Sci & Technol, College Pk, MD 20742 USA |
推荐引用方式 GB/T 7714 | Zhang, Xue-Mei,Wang, Yong-Dong,Zhao, Ying,et al. Litter decomposition and nutrient dynamics of three woody halophytes in the Taklimakan Desert Highway Shelterbelt[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2017,31(3):335-351. |
APA | Zhang, Xue-Mei,Wang, Yong-Dong,Zhao, Ying,Xu, Xin-Wen,Lei, Jia-Qiang,&Hill, Robert Lee.(2017).Litter decomposition and nutrient dynamics of three woody halophytes in the Taklimakan Desert Highway Shelterbelt.ARID LAND RESEARCH AND MANAGEMENT,31(3),335-351. |
MLA | Zhang, Xue-Mei,et al."Litter decomposition and nutrient dynamics of three woody halophytes in the Taklimakan Desert Highway Shelterbelt".ARID LAND RESEARCH AND MANAGEMENT 31.3(2017):335-351. |
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