Characteristics of preferential flow during simulated rainfall events in an arid region of China
文献类型：期刊论文
| 作者 | Yan, Jialiang1,2; Zhao, Wenzhi1 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 75期号:7页码:12 |
| 关键词 | Preferential flow Dye-tracer experiment Arid and semiarid ecosystems Soil water distribution Small rainfall event |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-015-5101-4 |
| 通讯作者 | Zhao, Wenzhi(zhaowzh@lzb.ac.cn) |
| 英文摘要 | Little is known about preferential flow and its effects on vegetation under natural conditions in an arid oasis ecotone. In this study, we performed dye-tracer experiments using 5, 15, 35, and 55 mm water-sprinkling treatments at three sites: Grass (G), Haloxylon (H), and Populus (P). At each site, we determined soil texture and saturated hydraulic conductivity of the soil (K-s) and water flow parameters; we also defined characteristics of soil fracturing and measured plant biomass at site P. The tracer experiments revealed that the three sites displayed significant differences in the degree of preferential flow. Soil structure and surface characteristics were the primary controlling factors, however, they played a different role in different rainfall events. For small rainfall events, soil surface characteristics controlled the preferential flow pattern; for large or extreme rainfall events, soil structure was the critical factor. The effects of different rainfall events were complex and strongly varied among sites. Our results further indicated that preferential flow could impact the growth of annual plants. We conclude that preferential flow in an arid oasis ecotone is a common phenomenon affected by complex factors, and it may be important in soil water distribution and plant growth. |
| 收录类别 | SCI |
| WOS关键词 | SOIL HYDRAULIC-PROPERTIES ; SANDY VADOSE ZONE ; TEMPORAL STABILITY ; WATER REPELLENCY ; CLAY SOIL ; LAND-USE ; HYDROPHYSICAL PARAMETERS ; INFILTRATION PATTERNS ; WETTING PATTERNS ; SEMIARID REGIONS |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000373635400025 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557279 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, Wenzhi |
| 作者单位 | 1.Chinese Acad Sci, Linze Inland River Basin Res Stn, Key Lab Inland River Ecohydrol Cold & Arid Reg, Environm & Engn Res Inst, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Jialiang,Zhao, Wenzhi. Characteristics of preferential flow during simulated rainfall events in an arid region of China[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(7):12. |
| APA | Yan, Jialiang,&Zhao, Wenzhi.(2016).Characteristics of preferential flow during simulated rainfall events in an arid region of China.ENVIRONMENTAL EARTH SCIENCES,75(7),12. |
| MLA | Yan, Jialiang,et al."Characteristics of preferential flow during simulated rainfall events in an arid region of China".ENVIRONMENTAL EARTH SCIENCES 75.7(2016):12. |
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来源：寒区旱区环境与工程研究所
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