黑河中游春小麦需水量空间分布
Spatial variation of water requirement for spring wheat in the middle reaches of Heihe River basin
查看参考文献20篇
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文摘
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合理估计春小麦的需水量(ETc)是进行干旱区水资源配置的有效方法,利用黑河中游14个气象站1970—2009年的逐日气象资料,应用Penman-Monteith公式估算各站点的参考作物蒸散量,并根据春小麦生长期的作物系数,在地理信息系统(GIS)技术支持下得出黑河中游春小麦需水量的空间分布及变化趋势。结果表明:1970—2009年黑河中游春小麦作物需水量整体分布具有从南向北递增的趋势,全生长期需水量在573—781 mm之间;高台、张掖、临泽、民乐、山丹、酒泉的春小麦需水量分别为731.26、686.88、598.24、728.89、719.77、713.59 mm,其中生长中期需水量最大,分别占全生长期的51.67%、51.11%、50.96%、51.24%、50.83%和50.77%;日平均气温、日照时数、风速、降水量、最小相对湿度和各因子的影响力由大到小分别占总影响力的57.29%、26.92%、15.15%、1.41%和0.78%。 |
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其他语种文摘
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Sustainability of irrigated agriculture depends primarily on the efficient management of irrigation water.Understanding crop evapotranspiration(ETc)is essential in planning the most effective use of water resources in the arid northwest China.ETc is not only the important component of water balance,but also an important requirement for proper constitution of irrigation strategy.In this study,the middle reach of Heihe River was selected as the study area which has the largest agricultural oases in China.Agricultural development has over 2000 years history own to its flat land.Irrigated spring wheat is the main crop in this region.With the increase in population growth and farmland area is 2452.1 km2 agricultural water requirement in the middle Heihe River basin is rapidly increasing.This results in the conflict between the agricultural water demand and ecological water demand.Ecological environment deteriorates due to vegetation disappearing at a rapid rate in large areas in the region.In the field,when the crop is small,water is predominately lost by soil evaporation,but once the crop is well developed and the canopy completely covers the soil,transpiration becomes the main process of water loss..The objective of this study was to map the spatial distribution of water requirements and analyze the relationship between the spatial variation of water requirement and main meteorological parameter during 1970-2009 in the Heihe River basin.First,reference crop evapotranspiration(ET0)was calculated using Penman-Monteith equation with daily data obtained from 14 meteorological stations in and around the study area.Secondly,the crop coefficients(Kc)of spring wheat in different growing stages were adjusted according to the data obtained from the field studies.Finally,we estimated the spatial distribution and variation trend of the water requirement of spring wheat in the middle reaches of Heihe river basin with the use of Geographical information system(GIS).The results showed that the trend of crop evapotranspiration(ETc)gradually increased from south to north,the ETc varies from 573 mm to 781 mm during the entire growing season.The ETc in Gaotai,Zhangye,Linze,Minle,Shandan,and Jiuquan is 731.26,686.88,598.24,728.89,719.77 and 713.59 mm,respectively.The ETc of mid-season stage is the largest percentage during the entire growing season,accounting for 51.67%,51.11%,50.96%,51.24%,50.83% and 50.77% of total ETc at six meteorological stations,respectively.Temperature,precipitation,wind speed,min relative humidity and sunshine duration were the dominant meteorological parameters influencing ETc,and the relative influences of temperature,sunshine duration,wind speed,precipitation and min relative humidity are 57.29%,26.92%,15.15%,1.41% and 0.78% respectively. |
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来源
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生态学报
,2011,31(9):2374-2382 【核心库】
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关键词
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春小麦需水量
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空间分布
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气候因子
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黑河中游
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地址
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1.
兰州大学, 干旱与草地生态教育部重点实验室, 兰州, 730000
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兰州大学, 西部环境教育部重点实验室, 兰州, 730000
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-0933 |
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学科
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农作物 |
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基金
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国家自然科学基金项目
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国家环境保护公益性基金资助项目
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文献收藏号
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CSCD:4289509
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参考文献 共
20
共1页
|
|
1.
Zhao C Y. Methods for estimating irrigation needs of spring wheat in the middle Heihe basin,China.
Agricultural Water Management,2005,75(1):54-70
|
被引
5
次
|
|
|
|
|
2.
张光辉. 甘肃西北部黑河流域水资源对下游生态环境变化的影响阈.
地质通报,2006,25(1):244-250
|
被引
6
次
|
|
|
|
|
3.
康尔泗. 甘肃河西地区内陆河流域荒漠化的水资源问题.
冰川冻土,2004,26(6):657-667
|
被引
28
次
|
|
|
|
|
4.
Nandagiri L. Performance evaluation of reference evapotranspiration equations across a range of Indian climates.
Journal of Irrigation and Drainage Engineering,2006,132(3):238-249
|
被引
13
次
|
|
|
|
|
5.
Vanderlinden K. Assessing reference evapotranspiration by the Hargreaves Method in Southern Spain.
Journal of Irrigation and Drainage Engineering,2004,130(3):184-191
|
被引
8
次
|
|
|
|
|
6.
Irmak S. Daily grass and alfalfa-reference evapotranspiration estimates and alfalfa-to-grass evapotranspiration ratios in Florida.
Journal of Irrigation and Drainage Engineering,2003,129(5):360-370
|
被引
17
次
|
|
|
|
|
7.
Itenfisu D. Comparison of reference evapotranspiration calculations as part of the ASCE standardization effort.
Journal of Irrigation and Drainage Engineering,2003,129(6):440-448
|
被引
17
次
|
|
|
|
|
8.
Allen R G. Crop evapotranspiration-guidelines for computing crop water requirements.
FAO Irrigation and Drainage Paper 56,1998
|
被引
60
次
|
|
|
|
|
9.
高前兆.
黑河流域水资源合理开发利用,1991:23-77
|
被引
2
次
|
|
|
|
|
10.
Kashyap P S. Evaluation of evapotranspiration estimation methods and development of crop-coefficients for potato crop in a sub-humid region.
Agricultural Water Management,2001,50(1):9-25
|
被引
14
次
|
|
|
|
|
11.
Moges S A. Decision support system for estimation of potential evapo-transpiration in Pangani Basin.
Physics and Chemistry of the Earth,2003,28(20/27):927-934
|
被引
1
次
|
|
|
|
|
12.
Brisson N. parameterization of the Shuttleworth-Wallace model to estimate daily maximum transpiration for use in crop models.
Ecological Modeling,1998,107(2/3):159-169
|
被引
18
次
|
|
|
|
|
13.
吕玉香. 1990-2007年贡嘎山海螺沟径流变化对气候变化的响应.
冰川冻土,2008,30(6):960-966
|
被引
13
次
|
|
|
|
|
14.
李林. 鼎湖山植物群落α多样性与环境的关系.
生态学报,2006,26(7):2301-2307
|
被引
22
次
|
|
|
|
|
15.
李林. 黑河上游地区气候变化对径流量的影响研究.
地理科学,2006,26(1):40-46
|
被引
55
次
|
|
|
|
|
16.
程玉菲.
黑河干流中游平原作物蒸发蒸腾量时空分布研究,2007
|
被引
6
次
|
|
|
|
|
17.
封志明. 气象要素空间插值方法优化.
地理研究,2004,23(3):357-364
|
被引
90
次
|
|
|
|
|
18.
裴步祥.
蒸发和蒸散的测定与计算,1989:82-98
|
被引
4
次
|
|
|
|
|
19.
张东. 汉江上游流域蒸散量计算方法的比较及改进.
资源科学,2005,27(1):97-103
|
被引
24
次
|
|
|
|
|
20.
刘绍民. 蒸散量测定与估算方法的对比研究.
自然资源学报,2003,18(2):161-167
|
被引
50
次
|
|
|
|
|
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