干旱区生态环境知识资源中心(Arid): 岷江上游不同景观结构小流域水量平衡的比较

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	岷江上游不同景观结构小流域水量平衡的比较
其他题名	A comparison of water balance in small basins with different landscape pattern in the upper reaches of Minjiang River
	许申来; 李秀珍; 何兴元
ISSN	1001-9332
出版年	2006
卷号	17 期号:10 页码:1832-1838
中文摘要	研究了1988～2002年岷江上游两个小流域(镇江关流域和黑水河流域)不同景观结构(土地覆盖、海拔、坡度、斑块密度、最大斑块指数等)对水量平衡的影响.基于两个流域土地覆盖类型、1988～2002年多年平均降水量和蒸散量的空间分布、两个流域土地覆盖类型同期多年平均径流深度的数据,得到不同土地覆盖类型的海拔、坡度、坡向与降雨、蒸散、径流的关系.结果表明,两个流域有林地海拔、坡度、坡向的不同导致其降水、蒸散降水比、径流降水比各异;两个流域草地水量平衡对景观格局的响应模式与有林地基本一致;由于黑水河流域的耕地分布在干旱河谷中,其蒸散量远远大于降水量,耕地本身的景观结构(坡向、坡度,斑块密度)并不对其水量平衡产生影响,这一点与镇江关完全不同.
英文摘要	This paper studied the effects of landscape pattern (land cover types, altitude, slope, aspect, patch density and maximum patch index) on the elements of water balance (precipitation, evapotranspiration, and runoff) in two small basins (Zhenjiangguan River and Heishui River) in the upper reaches of Minjiang River during 1988～2002. Based on the spatial distribution of mean annual precipitation and evapotranspiration as well as the mean annual runoff on different land cover (woodland, grassland and cropland) during 1988～2002, the relationship of landscape pattern with water balance was approached, and the results showed that in these two basins, the precipitation, evapotranspiration/precipitation ratio, and runoff/precipitation ratio had a greater difference with the altitude, slope, and aspect of woodland, and grassland had a similar hydrological effect as woodland. On the farmland of Heishui River basin, which was distributed in dry valley, evapotranspiration was much higher than precipitation. This abnormal water balance was caused by the arid valley climate in the upper reaches of Minjiang River but not the landscape pattern of farmland, being totally different with that in Zhenjiangguan River basin.
中文关键词	岷江上游 ; 干旱河谷 ; 景观结构 ; 水量平衡
英文关键词	Upper reaches of Minjiang River Arid valley Landscape pattern Water balance
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:2578737
来源机构	中国科学院沈阳应用生态研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/220346
作者单位	中国科学院沈阳应用生态研究所, 沈阳, 辽宁 110016, 中国
推荐引用方式 GB/T 7714	许申来,李秀珍,何兴元. 岷江上游不同景观结构小流域水量平衡的比较[J]. 中国科学院沈阳应用生态研究所,2006,17(10):1832-1838.
APA	许申来,李秀珍,&何兴元.(2006).岷江上游不同景观结构小流域水量平衡的比较.,17(10),1832-1838.
MLA	许申来,et al."岷江上游不同景观结构小流域水量平衡的比较".17.10(2006):1832-1838.