沙漠腹地人工绿地地表能量交换特征
Characteristics of surface energy exchange in the artificial shelter forest land of the hinterland of Taklimakan Desert
查看参考文献38篇
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文摘
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运用涡度相关法开路系统对塔克拉玛干沙漠腹地人工灌溉绿地生长季地表能量交换特征以及与环境因子的关系进行测定分析。结果表明:在典型晴天条件下,无论是沙漠区还是沙漠腹地灌溉绿地,白天感热通量在净辐射通量的分配中所占的份额最大,潜热交换仅占很小的比例,人工绿地感热通量和潜热通量的峰值为230.54 W/m~2和88.5 W/m~2,沙漠区为220 W/m~2和17.55 W/m~2,沙漠腹地人工灌溉造林后潜热交换明显增加。沙漠腹地造林后,绿地波文比日变幅和日均波文比均减小,绿地日均波文比为沙漠区的15%,人工绿地的营建促使了局地气候的改变。绿地地表能量交换受气象因子和下垫面条件的影响和制约,按相关系数的高低,环境因子对感热、潜热通量的影响依次为:R_n>△T_a>△T_s>v>T_s,沙漠区人工造林后地表能量交换与多个环境因子有着密切的关系。这些研究结果将加深我们对沙漠地区人工灌溉造林地近地层能量交换的认识。 |
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其他语种文摘
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In order to reveal the energy exchange characters of artificial irrigated shelter forest land near the ground surface in the hinterland of the Taklimakan Desert. The research applied the Eddy Covariance Method to measure sensible heat and latent heat flux on a typical clear day in growing reason. The results showed as follows: (1) Sensible heat flux is a larger proportion of energy and latent heat flux accounts for a small proportion in the desert and artificial shelter forest land. However the latent heat flux in artificial shelter forest land is more than that in desert because of the surface albedo, soil moisture and land cover change after afforesting the shelter-forests. Compared with the desert, the heat flux and latent heat flux peak increase accordingly in artificial irrigated shelter forest land, the peak of latent heat and sensible heat flux are 230.54 W/m~2 and 88.5 W/m~2 in artificial shelter forest land, thus the desert area is 220 W/m~2 and 17.55 W/m~2, the surface energy exchange characteristics in the hinterland of the Taklimakan Desert is similar with other arid areas in northwest China. (2) Average Bowen value is 1.63 in artificial irrigated shelter forest land whereas 10.82 in desert on a typical clear day. After afforesting, average Bowen value and Bowen diurnal range is significantly reduced, only occupied 15% of the desert area, the Bowen in artificial irrigated shelter forest land is similar with oasis in the Northwest China. This proves that microclimate had prompted.(3) Meteorological factors and underlying surface influence surface energy exchange in artificial irrigated shelter forest land. The correlation analysis showed that the order of fitness degree between latent heat and sensible heat flux and single environment factor was : net radiation > variety of air temperature > variety of soil temperature > wind velocity > soil temperature. The surface energy exchange is closely related to several environmental factors. The result will show the characteristics of surface energy exchange of irrigated afforestation in the desert hinterland. |
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来源
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干旱区地理
,2013,36(3):433-440 【核心库】
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关键词
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涡度相关
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感热
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潜热
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人工造林
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塔克拉玛干沙漠腹地
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地址
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1.
中国科学院新疆生态与地理研究所, 新疆, 乌鲁木齐, 830011
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中国环境监测总站, 北京, 100012
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中国民用航空总局第二研究所, 四川, 成都, 610041
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中国水电顾问集团成都勘测设计研究院, 四川, 成都, 610072
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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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1000-6060 |
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学科
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大气科学(气象学) |
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基金
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国家自然科学基金重点项目
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公益性行业（气象）科研专项
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文献收藏号
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CSCD:4865022
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参考文献 共
38
共2页
|
|
1.
Baldocchi D D. Measuring biosphere-atmosphere exchanges of biologically related gases with micrometeorological methods.
Ecology,1988,69(5):1331-1340
|
被引
79
次
|
|
|
|
|
2.
丁一汇.
中国的气候变化与气候影响研究,1997
|
被引
16
次
|
|
|
|
|
3.
孙睿. 地表水热通量研究进展.
应用生态学报,2003,14(3):434-438
|
被引
25
次
|
|
|
|
|
4.
李祎君. 玉米农田水热通量动态与能量闭合分析.
植物生态学报,2007,31(6):1132-1144
|
被引
34
次
|
|
|
|
|
5.
Swinbank W C. Measurement of vertical transfer of heat and water vapor by eddies in the lower atmosphere.
Journal of Meteorology,1951,8:135-145
|
被引
51
次
|
|
|
|
|
6.
Kaimal J C.
Atmospheric boundary layer flows: Their structure and measurement,1994
|
被引
21
次
|
|
|
|
|
7.
郭家选. 冬小麦农田暂时水分胁迫状况下水、热通量日变化.
生态学报,2006,26(1):130-137
|
被引
12
次
|
|
|
|
|
8.
张法伟. 青藏高原高寒湿地生态系统CO_2通量.
生态学报,2008,28(2):453-462
|
被引
40
次
|
|
|
|
|
9.
窦军霞. 西双版纳热带季节雨林水热通量.
生态学报,2007,27(8):3099-3109
|
被引
14
次
|
|
|
|
|
10.
李菊. 千烟洲人工林水汽通量特征及其与环境因子的关系.
生态学报,2006,26(8):2449-2456
|
被引
27
次
|
|
|
|
|
11.
孙丽. 三江平原典型沼泽湿地蒸散发估测.
应用生态学报,2008,19(9):1925-1930
|
被引
7
次
|
|
|
|
|
12.
刘冉. 盐生荒漠地表水热与二氧化碳通量的季节变化及驱动因素.
生态学报,2009,29(1):67-75
|
被引
23
次
|
|
|
|
|
13.
艾力·买买提明. 塔克拉玛干沙漠近地层湍流热通量计算方法比较研究.
中国沙漠,2008,28(5):948-954
|
被引
12
次
|
|
|
|
|
14.
Monteith J L.
Principles of environmental physics,1973
|
被引
35
次
|
|
|
|
|
15.
查同刚.
北京大兴杨树人工林生态系统碳平衡的研究
|
被引
1
次
|
|
|
|
|
16.
Brutsaert W.
Evaporation in the atmosphere: Theory,history, and applications,1982
|
被引
1
次
|
|
|
|
|
17.
Falge. Gap filling strategies for defensible annual sums of net ecosystem exchange.
Agricultural and Forest Meteorology,2001,107:43-69
|
被引
252
次
|
|
|
|
|
18.
Xu L K. Seasonal variation in carbon dioxide exchange over a Mediterranean annual grassland in California.
Agricultural and Forest Meteorology,2004,123:79-96
|
被引
39
次
|
|
|
|
|
19.
陈金敏. 科尔沁退化沙地和农耕区水热交换的模拟研究.
北京大学学报(自然科学版),2009,45(4):685-692
|
被引
1
次
|
|
|
|
|
20.
刘树华. 沙漠人工植被和流动沙丘的小气候特征观测研究.
干旱区地理,1994,17(1):16-23
|
被引
16
次
|
|
|
|
|
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