干旱区生态环境知识资源中心(Arid): Water-saving Potential in aeolian sand soil under straight tube and surface drip irrigation in Taklimakan Desert in Northwest China

Arid

DOI	10.3724/SP.J.1226.2011.00243
	Water-saving Potential in aeolian sand soil under straight tube and surface drip irrigation in Taklimakan Desert in Northwest China
	Bao, ZhongWen; Du, HuLin; Jin, XiaoJun
通讯作者	Bao, ZW
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2011
卷号	3 期号:3 页码:243-251
英文摘要	Evaporation loss from the saturated soil beneath drip irrigation emitters highly influences the irrigation efficiency of drip irrigation (DI). Subsurface drip irrigation (SDI) is one good approach to curb this inefficiency, but in a new irrigation method, straight tube irrigation (STI), the irrigation tubes do not need to be buried and thus STI is recommended to increase the irrigation efficiency under normal surface-applied DI. STI consists of only connectors and water-transference tubes that can directly transfer irrigation water from the lateral emitters in the drip line to the root zone of plants. Five-month field experiments were carried out in aeolian sand soil in the forest-belts of the Taklimakan Desert, which have poor water storage capacity, to compare the potential water saving between STI and DI. The preliminary results showed that, compared with DI, STI (1) improved the soil water content in soil depths from 40 to 100 cm under the soil surface; (2) achieved the same irrigation effects in relatively shorter irrigation durations; (3) had very little water loss due to deep seepage; and (4) formed a layer of dry sand about 10 to 30 cm thick immediately below the soil surface, which lessened evaporation loss of soil water beneath the emitters on the soil surface. This demonstrates that STI can maximize the water-saving potential of DI through the reduction of wetted soil perimeters on the soil surface. This is valuable information for water-saving engineering applications and projects with STI in arid and semiarid regions.
英文关键词	potential water saving evaporation loss straight tube irrigation drip irrigation efficiency Taklimakan Desert
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000422285100007
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/329834
作者单位	[Bao, ZhongWen; Du, HuLin] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Div Hydrol & Water Land Resources Cold & Arid Reg, Lanzhou 730000, Gansu, Peoples R China; [Bao, ZhongWen] Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China; [Jin, XiaoJun] China Natl Petr Corp, Tarim Oilfield Corp, Korla 841000, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	Bao, ZhongWen,Du, HuLin,Jin, XiaoJun. Water-saving Potential in aeolian sand soil under straight tube and surface drip irrigation in Taklimakan Desert in Northwest China[J]. 中国科学院西北生态环境资源研究院,2011,3(3):243-251.
APA	Bao, ZhongWen,Du, HuLin,&Jin, XiaoJun.(2011).Water-saving Potential in aeolian sand soil under straight tube and surface drip irrigation in Taklimakan Desert in Northwest China.SCIENCES IN COLD AND ARID REGIONS,3(3),243-251.
MLA	Bao, ZhongWen,et al."Water-saving Potential in aeolian sand soil under straight tube and surface drip irrigation in Taklimakan Desert in Northwest China".SCIENCES IN COLD AND ARID REGIONS 3.3(2011):243-251.