干旱区生态环境知识资源中心(Arid): 长期膜下滴灌棉田残膜变化趋势研究

Arid

	长期膜下滴灌棉田残膜变化趋势研究
其他题名	Change Trend of Residual Film in Soil in Cotton Field under the Long-term Mulched Drip Irrigation
	贺怀杰; 王振华; 郑旭荣; 张金珠; 李文昊
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2018
卷号	35 期号:6 页码:1487-1495
中文摘要	为探寻棉田土壤中残膜污染状况以及覆膜30 a棉田土壤中的残膜分布趋势,对试验区121团覆膜年限分别为5 a、9 a、11 a、13 a、15 a和19 a共6块棉田进行取样研究。运用Matlab程序构建BP神经网络模型,对取样数据进行分层预测和整体预测,结果表明:运用模型对残膜面积和质量数据进行整体预测,能够更好地反映实际情况下残膜在棉田土壤中的分布趋势,能够精准地预测本地区覆膜30 a棉田土壤中地膜残留状况;同时随着覆膜年限的增加,土壤表层大面积残膜在耕地作业下逐年碎裂,并向深层土壤移动,在30 ~ 40 cm深度的土壤中逐年残留。通过预测得到覆膜30 a棉田残膜密度达到419.19 kg·hm~(-2),超出国家标准限值75.0 kg·hm~(-2)近6倍,为解决此问题可以覆盖厚度大于0.010 mm的农用地膜,并提高地膜回收率来保证棉田的可持续发展。
英文摘要	In order to explore the pollution and distribution of residual mulching plastic film in soil in cotton field in recent 30 years,the sample plots in 121st State Farm of Xinjiang Corps of Production and Construction were selected as the experimental areas,where the mulching film was used for 5,9,11,13,15 and 19 years respectively.The Matlab program was used to develop the BP neural network model for hierarchical prediction and overall prediction of sample data.The results showed that the residual film area and quality data predicted with the model could be used to perfectly reflect the distribution of residual film in soil in cotton field in recent 30 years.The residual film in topsoil was broken year by year with the time increase of mulching plastic film and moved down to deep soil (30-40 cm).The predicted result revealed that the residual film density in cotton field would reach 419.19 kg·hm~(-2) after mulching plastic film was used for 30 years,which would be nearly 6 times of the national standard limit (75.0 kg·hm~(-2)).In order to solve this problem,it is suggested to use the plastic film thicker than 0.010 mm,increase the recovery of mulching plastic film,and ensure the sustainable development of cotton field.
中文关键词	典型绿洲区 ; BP神经网络 ; 棉田 ; 残膜污染 ; 残膜密度 ; 可持续发展 ; 石河子
英文关键词	typical oasis BP Neural Network cotton field residual film pollution residual film density sustainable development Shihezi
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6372474
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237692
作者单位	石河子大学水利建筑工程学院;;现代节水灌溉兵团重点实验室, ;;现代节水灌溉兵团重点实验室, 石河子;;石河子, 新疆;;新疆 832000;;832000, 中国
推荐引用方式 GB/T 7714	贺怀杰,王振华,郑旭荣,等. 长期膜下滴灌棉田残膜变化趋势研究[J]. 石河子大学,2018,35(6):1487-1495.
APA	贺怀杰,王振华,郑旭荣,张金珠,&李文昊.(2018).长期膜下滴灌棉田残膜变化趋势研究.干旱区研究,35(6),1487-1495.
MLA	贺怀杰,et al."长期膜下滴灌棉田残膜变化趋势研究".干旱区研究 35.6(2018):1487-1495.