干旱区生态环境知识资源中心(Arid): 民勤绿洲农田休闲期土壤水分调控技术

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	民勤绿洲农田休闲期土壤水分调控技术
其他题名	Soil Moisture Control Technology During Fallow Period of Farmland in Minqin Oasis
	丁林; 雒天峰
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2014
卷号	34 期号:5 页码:135-139
中文摘要	通过TRIME-IPH土壤水分测定仪和微型蒸渗器,测定了农田休闲期不同耕作及覆盖条件下土壤水分动态变化规律,并结合气象数据比较了不同耕作和覆盖处理的优越性,分析了休闲期不同耕作覆盖措施对土壤水分及降水利用状况的影响,提出了农田休闲期水分调控措施。结果表明,传统耕作模式与覆盖措施相结合减少了土面蒸发,提高了降水的转化利用率,适宜的田面处理方式(深翻+起垄+覆全膜,深翻 +起垄+覆草和深翻+平整+覆全膜)封冻前20 cm处含水率较常规处理(深翻)提高40. 8%,31. 3%和29. 7%,整个休闲期日均蒸发量分别降低0. 36,0. 20和0. 27 mm/d,累计蒸发量分别下降23. 3%,15. 0%和24. 1%,其中深翻+平整+覆全膜处理的抑制蒸发效果最为显著。考虑到覆盖材料的收集、采购费用等因素,采用深翻+平整+覆全膜和深翻+起垄+覆全膜处理是适宜在民勤绿洲推广的农田休闲期水分调控措施之一。
英文摘要	Using different farming and coverage methods, an experiment in farmland was conducted to determine soil moisture dynamic change regulation with TRIME-IPH and miniature micro-lysimeter soil moisture tester during fallow period. The advantage of different farming and coverage methods were compared with weather and other auxiliary data. The measured data were analyzed to learn the effect of different farming and coverage measures on soil water and precipitation utilization. It indicated that traditional farming model combined with cover measures could reduce surface soil evaporation and improve the utilization and conversion rate of natural rainfall. The soil moisture of suitable treatment for farmland surface(commune + ridging + covering film,commune + ridging + covering grass and commune + flat + covering film) increased by 40. 8%, 31. 3% and 29. 7% in 20 cm before freezing compared with conventional treatment(commune),the daily average evaporation decreased 0. 36 mm/d, 0. 20 mm/d and 0. 27 mm/d respectively in leisure period, and the cumulative evaporation capacity decreaseed by 23. 3%, 15. 0% and 24. 1%. Among them the inhibition of evaporation processing effect for commune + flat + covering film is most significant. Considering the factors such as cover material collection, procurement cost, leisure farm uses the commune + ridging + covering film and commune + flat + covering film are the suitable water control measures for in Minqin oasis.
中文关键词	农田 ; 休闲期 ; 水分调控 ; 降水利用 ; 耗水 ; 民勤绿洲
英文关键词	farmland leisure period moisture control precipitation utilization water consumption Minqin oasis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:5309371
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231745
作者单位	甘肃省水利科学研究院, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	丁林,雒天峰. 民勤绿洲农田休闲期土壤水分调控技术[J],2014,34(5):135-139.
APA	丁林,&雒天峰.(2014).民勤绿洲农田休闲期土壤水分调控技术.水土保持通报,34(5),135-139.
MLA	丁林,et al."民勤绿洲农田休闲期土壤水分调控技术".水土保持通报 34.5(2014):135-139.