水分胁迫对绿洲影响的数值模拟
Numerical Simulation of Environmental Influence Under Different Irrigation Volume in Arid Regions of NW China
查看参考文献12篇
|
文摘
|
运用耦合了包含土壤-植被-水文参数化陆面过程的非静力平衡中尺度大气模式MM5,将水平分辨率提高到1km,通过数值模拟的方式,分别从地气间水热交换、对绿洲小气候影响、土壤湿度变化以及径流量的角度,研究了2002年7月下旬我国西北干旱区绿洲环境在不同水量滴灌条件下的变化,从理论上找到了较适宜绿洲小气候维持的滴灌水量.结果表明:1、绿洲下垫面为农田时,从土壤保湿和绿洲小气候维持角度考虑,500m3/hm2/10天的滴灌水量对7月下旬黑河流域中游绿洲是一个比较合适的灌溉量.2、500 m3/hm2/10天的灌溉水量仅为同期大水漫灌定额下限的一半,上限的1/3,间接证明了滴灌是一种高效节水的灌溉方式,可以为干旱区节约大量水资源. |
|
其他语种文摘
|
The environmental variations under different volume irrigation from 20 July to 30 July, 2002, were studied in the arid region of NW China based on the non-hydrostatic atmos-pheric mesoscale model MM5, in which the land surface process parameterization (OSU LSM) involving soil layers, vegetable layer and hydrological process was included. The horizontal resolution was selected as lkm. The influence on energy and water exchanges between land surface and atmosphere, atmospheric temperature and humidity at 2m height, soil moisture at four layers (10cm, 30cm, 60cm, 100cm depth ) and surface/underground runoff under different volume irrigation was analyzed. The proper volume maintaining the micro-climate of oasis was found out through analyzing. The following results were obtained: 1)Accounting soil moisture conservation and the micro climate maintenance over oasis, 500m~3 /hm~2 drop irrigation for later dekad of July, 2002, is a proper volume in the middle reaches of HEIHE river basin if the land used is agriculture land. 2)The 500 m~3/hm~2 /10d is just half of the minimum norm and one-third of maximum norm of flood irrigation. This conclusion proved indirectly that drop irrigation is a water saving and high quality irrigation method, which could hold the limited water resources massively in arid region of North -West China. |
|
来源
|
地理科学进展
,2004,23(3):67-73 【核心库】
|
|
关键词
|
陆面过程
;
MM5
;
干旱区
;
绿洲
;
数值模拟
|
|
地址
|
中国科学院寒区旱区环境与工程研究所, 甘肃, 兰州, 730000
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1007-6301 |
|
学科
|
地球物理学 |
|
基金
|
国家自然科学基金
;
中国科学院知识创新工程重要方向项目
|
|
文献收藏号
|
CSCD:1706346
|
参考文献 共
12
共1页
|
|
1.
黄文房. 绿洲发展与生态环境建设.
绿洲发展与生态环境建设,1998
|
CSCD被引
14
次
|
|
|
|
|
2.
汤奇成. 中国干旱区水文与水资源利用.
中国干旱区水文与水资源利用,1992
|
CSCD被引
65
次
|
|
|
|
|
3.
肖洪浪. 中国水情.
中国水情,2000
|
CSCD被引
9
次
|
|
|
|
|
4.
苏德荣. 干旱地区间作种植高效节水灌溉基础问题研究.
干旱地区间作种植高效节水灌溉基础问题研究(博士学位论文),2001
|
CSCD被引
2
次
|
|
|
|
|
5.
於利. 水分胁迫对冬小麦物质分配及产量构成的影响.
地理科学进展,2004,23(1):105-112
|
CSCD被引
1
次
|
|
|
|
|
6.
丰华丽. 生态环境需水研究现状和展望.
地理科学进展,2003,22(6):591-598
|
CSCD被引
25
次
|
|
|
|
|
7.
Mesoscale and Microscale Meteorology Division National Center for Atmospheric Re. PSU/NCAR mesoscale modeling system tutorial class notes and user's guide.
PSU/NCAR mesoscale modeling system tutorial class notes and user's guide,2001
|
CSCD被引
1
次
|
|
|
|
|
8.
Georg A Grell. Grell.
A Description of the Fifth-Generation Penn State/NCAR Mesoscale Model(MM5).NCAR/TN-398+STR NCAR TECHNICAL NOTE,1995:37-90
|
CSCD被引
1
次
|
|
|
|
|
9.
Chen F. Coupling an Advanced Land Surface-Hydrology Model with the Penn State-NCAR MM5 Modeling System.
Model Implementation and Sensitivity,2001,129:569-585
|
CSCD被引
1
次
|
|
|
|
|
10.
M Ek. OSU 1-D PBL Model User's Guide.
OSU 1-D PBL Model User's Guide. Version 1.0.4. A one-Dimensional Planetary Boundary Layer Model with interactive soil layers and plant canopy,1991
|
CSCD被引
1
次
|
|
|
|
|
11.
欧阳惠. 水旱灾害学.
水旱灾害学,2000
|
CSCD被引
1
次
|
|
|
|
|
12.
Turner N C. Plant water relations and irrigation management.
Agric. Wat. Manage.,1990,17:59-73
|
CSCD被引
56
次
|
|
|
|
|
了解气象卫星更多信息，请访问