Knowledge Resource Center for Ecological Environment in Arid Area
Characteristics of Soil Environment Variation in Oasis-Desert Ecotone in the Process of Oasis Growth | |
Li, Haifeng; Zeng, Fanjiang![]() ![]() | |
通讯作者 | Zeng, Fanjiang |
会议名称 | 4th IFIP TC 12 Conference on Computer and Computing Technologies in Agriculture |
会议日期 | OCT 22-25, 2010 |
会议地点 | Nanchang, PEOPLES R CHINA |
英文摘要 | Cele Oasis on the southern edge of Tarim Basin was used to investigate the impact of human activity on the soil environment of the oasis- desert ecotone during the oasis expansion process. Since farmland is extending into the oasis desert ecotone during oasis expansion, reclaimed farmland and control plots within the ecotone were investigated. The variations in soil moisture, soil nutrients and soil particle-size distribution of the two plots to a depth range of 0-100 cm were discussed. The soil moisture of each layer in the farmland to a depth of 0-100 cm differed significantly from that in the control plot; the former was generally higher than the latter in the same layer, particularly during the farming period (i.e. April-September). Agricultural soil moisture showed a time-variation rule from multimodal to unimodal with increased depth. Soil moisture of the control plot showed a generally monotonic increasing trend with increased depth; however, for the farmland plot, there was a unimodal increasing trend of initial increase and then a decrease with increased depth. Each layer of the farmland plot had a higher soil nutrient composite index than that of the control plot; however, this improving effect of farmland reclamation on soil nutrient conditions in the oasis-desert ecotone decreased with increased depth. The variation of soil particle-size showed a particular regularity under the influence of cultivation, i.e. silt and clay contents in farmland increased obviously and sand contents decreased. |
英文关键词 | Soil moisture Soil nutrient Size distribution Cele Oasis |
来源出版物 | COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE IV, PT 1 |
ISSN | 1868-4238 |
出版年 | 2011 |
卷号 | 344 |
页码 | 321-334 |
ISBN | 978-3-642-18332-4 |
出版者 | SPRINGER-VERLAG BERLIN |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | CPCI-S |
WOS记录号 | WOS:000306574900038 |
WOS关键词 | ORGANIC-CARBON ; NORTHERN CHINA ; LOESS PLATEAU ; LAND-USE ; NITROGEN ; WATER ; CULTIVATION ; DEGRADATION ; MANAGEMENT ; QUALITY |
WOS类目 | Agriculture, Multidisciplinary ; Computer Science, Information Systems ; Computer Science, Interdisciplinary Applications |
WOS研究方向 | Agriculture ; Computer Science |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/299743 |
作者单位 | Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Xinjiang, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Haifeng,Zeng, Fanjiang,Gui, Dongwei,et al. Characteristics of Soil Environment Variation in Oasis-Desert Ecotone in the Process of Oasis Growth[C]:SPRINGER-VERLAG BERLIN,2011:321-334. |
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