General information
Yanhe River, originating from Baiyu Mountains, Tianciwan Town, Jingbian county, Shaanxi Province, is a first class branch of Yellow River, Peoples Republic of China (PRC).
It is located between 108°45′-110°28′ E and 36°23′-37°17′N (Figure 1). The average channel slope is 3.26‰ and the whole basin covers 7,678 kmē.
Figure 1: Location of the Yanhe River Basin
The study site lies in a hilly gullied area of the Loess Plateau, with a highly dissected landform.
Dryland farming is the dominating land use, and the vegetation is secondary forest in the southern part and forest-grass in the northern part.
The population in the area was 637.234 in 1990 and 681.403 in 1999.
Figure 2: The Ganguyi Hydrology Station (From: www.hwswj.gov.cn)
The area of Ganguyi Hydrology Station, located in the Ganguyi Town, Baota Country, Yan'an City is 5,891 kmē, including of Jingbian County (256 kmē), Zhidan County (708 kmē), Ansai County (2,699 kmē) and Baota County (2,228 kmē).
Main language: Chinese
