干旱区生态环境知识资源中心(Arid): 绿洲灌区留茬覆盖免耕储水灌溉在休闲期的节水效应

Arid

	绿洲灌区留茬覆盖免耕储水灌溉在休闲期的节水效应
其他题名	Effect of no-till with stubble mulch on water saving under storage irrigation during fallow in the Hexi oasis
	张金霞 1; 施坰林 1; 刘成元 2
ISSN	1003-4315
出版年	2007
卷号	42 期号:1 页码:114-118
中文摘要	在河西绿洲灌区进行了休闲期秸秆覆盖免耕储水灌溉的节水效应试验研究.结果表明,在休闲期,NTS(覆盖免耕)可以有效地提高土壤的雨水蓄集和减少土壤的蒸发,具有明显的保墒作用;日均蒸发量和蒸发率随着储水定额的增大而增大.NTS的蒸发率比CTS(秸秆还田)和CTB(常规耕作)分别减小22.58%和40.86%,其日均蒸发量比CTS和CTB分别减少38.53%和51.45%(P＜0.01);储水定额750m3/hm2的蒸发率比1200、1650、2100m3/hm2储水定额分别减小了14.11%、26.12%和41.13%;储水定额为750m3/hm2的日均蒸发量比1200m3/hm2、1650m3/hm2和2100m3/hm2分别减少了32.83%、49.76%和65.04%(P＜0.01);且储水定额为750m3/hm2的条件下NTS的日均蒸发量比CTS和CTB的分别减少了71.43%和77.78%.所以,在NTS条件下适宜的储水定额为750m3/hm2.
英文摘要	The effect of no-till with stubble mulch (NTS) on water saving under storage irrigation during fallow was studied at Zhangye,in the Hexi Oasis,Gansu Province. The results showed that NTS effectively increased precipitation conservation and reduced soil moisture evaporation during fallow. The evaporation rate and the daily evaporation were increased with the increase of storage irrigation norm. The results also showed that the storage irrigation norm could be reduced to 750 m~3/hm~2 with NTS compared with conventional storage irrigation. The evaporation rate of NTS was 22. 58 % and 40. 86 % lower than that of conventional tillage with straw incorporated (CTS) and conventional tillage with bare ground (CTB),respectively;but the daily mean evaporation of NTS was 38. 53 % and 51. 45 %(P<0. 01) lower than that of CTS and CTB,respectively. The evaporation rate at the storage irrigation norm of 750 m~3/hm~2 was 14.11 %,26.12 % and 41.13 % lower that that of 1 200 m~3/hm~2,1 650 m~3/hm~2 and 2 100 m~3/hm~2 .respectively; the daily evaporation of the storage irrigation norm of 750 m~3/hm~2 was 32. 83 % ,49. 76 % and 65. 04 % lower than that of 1 200 m~3/hm~2,1 650 m~3/hm~2 and 2 100 m~3/hm~2 ,respectively (P<0. 01). The daily evaporation of NTS under the 750 m3/hm2 was 71. 43 % and 77. 78 %(P<0. 01) lower than that of CTS and CTB, respectively
中文关键词	留茬覆盖免耕 ; 储水灌溉 ; 休闲期 ; 节水效应 ; 绿洲
英文关键词	no-till with stubble mulch storage irrigation norm fallow period effects of water saving 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:2911652
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220866
作者单位	1.甘肃农业大学工学院, 兰州, 甘肃 730070, 中国; 2.甘肃省人事厅, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	张金霞,施坰林,刘成元. 绿洲灌区留茬覆盖免耕储水灌溉在休闲期的节水效应[J]. 甘肃农业大学,2007,42(1):114-118.
APA	张金霞,施坰林,&刘成元.(2007).绿洲灌区留茬覆盖免耕储水灌溉在休闲期的节水效应.,42(1),114-118.
MLA	张金霞,et al."绿洲灌区留茬覆盖免耕储水灌溉在休闲期的节水效应".42.1(2007):114-118.