干旱区生态环境知识资源中心(Arid): Returning Cotton Stalks to the Field Increases Residual Plastic Film in Oasis Agroecosystems under Long-term Mulched Drip Irrigation

Arid

DOI	10.2136/sssaj2019.04.0128
	Returning Cotton Stalks to the Field Increases Residual Plastic Film in Oasis Agroecosystems under Long-term Mulched Drip Irrigation
	Zhang, Jinzhu 1,2; He, Huaijie 1,2; Wang, Zhenhua 1,2; Fan, Bihang 3; Zheng, Xurong 1,2; Li, Wenhao 1,2; Lin, Henry 3; Guo, Li 3
通讯作者	Wang, Zhenhua ; Guo, Li
来源期刊	SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
ISSN	0361-5995
EISSN	1435-0661
出版年	2019
卷号	83 期号:5 页码:1502-1511
英文摘要	After the long-term practice of dripping irrigation under plastic film (also called mulched drip irrigation) in Xinjiang, efficient recovery of the residual plastic film (RPF) becomes a grand challenge. This is especially true for cotton fields where RPF amount has significantly exceeded China's National Standard and caused severe soil pollution. Here, we examined the RPF in cotton fields in a typical oasis agroecosystem in Xinjiang with different lengths of time of mulching practice (5, 9, 11, 13, 15, and 19 yr). We documented the amount and distribution of the RPF at 0- to 40-cm depth via six field sampling events in 2016 and 2017, before and after cotton stalks were returned to the field. The density of the RPF of six sampling plots in 2016 was 121.85, 215.85, 250.63, 294.17, 327.83, and 352.38 kg ha(-1), rising from 5 to 19 yr of mulched drip irrigation, which further increased by 18.92, 16.75, 16.59, 17.82, 19.25, and 16.95 kg ha(-1) in 2017. As years of mulching increased, small RPF fragments accumulated in the tillage layer due to low efficient recovery of the film. In addition, returning cotton stalks to the field intensified the downward movement of RPF to deeper soil depths. The amount of large RPF of 30 cm(2) per piece in the 0- to 15-cm soil depth increased by 20% after cotton stalks were returned to the field; those of weight 50 to 100 mg per piece similarly increased by 10%. The fragmentation and accumulation of larger RPF pieces at depth could further challenge film recovery. To mitigate the soil pollution problems caused by the RPF and to ensure the sustainable development of the oasis agriculture, biodegradable film or thicker plastic film are su ested as an alternative of the thin plastic film in mulching practice.
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000489737600023
WOS关键词	BIODEGRADABLE FILMS ; PHYSICAL-PROPERTIES ; STRAW RETURN ; SOIL ; YIELD ; COVER ; ENVIRONMENT ; MANAGEMENT ; XINJIANG ; BEHAVIOR
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218886
作者单位	1.Shihezi Univ, Coll Water Resources & Architectural Engn, Shihezi 832000, Xinjiang, Peoples R China; 2.Shihezi Univ, Key Lab Modern Water Saving Irrigat Xinjiang Prod, Shihezi 832000, Xinjiang, Peoples R China; 3.Penn State Univ, Dept Ecosyst Sci & Management, University Pk, PA 16802 USA
推荐引用方式 GB/T 7714	Zhang, Jinzhu,He, Huaijie,Wang, Zhenhua,et al. Returning Cotton Stalks to the Field Increases Residual Plastic Film in Oasis Agroecosystems under Long-term Mulched Drip Irrigation[J],2019,83(5):1502-1511.
APA	Zhang, Jinzhu.,He, Huaijie.,Wang, Zhenhua.,Fan, Bihang.,Zheng, Xurong.,...&Guo, Li.(2019).Returning Cotton Stalks to the Field Increases Residual Plastic Film in Oasis Agroecosystems under Long-term Mulched Drip Irrigation.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,83(5),1502-1511.
MLA	Zhang, Jinzhu,et al."Returning Cotton Stalks to the Field Increases Residual Plastic Film in Oasis Agroecosystems under Long-term Mulched Drip Irrigation".SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 83.5(2019):1502-1511.