loess hilly area 黄土丘陵区
the loess hilly area 黄土丘陵区
loess hilly gully area 黄土丘陵区
Loess hilly area of Ningxia 宁夏黄土丘陵区
hilly area of loess 黄土丘陵区
loess gulled-hilly area 黄土残塬沟壑区
ningxia loess hilly-gully area 宁南宽谷丘陵区
hilly area of loess plateau 黄土高原丘陵区
The sediment sources in the gully hilly loess area in southwest Shanxi Province, north China was studied.
该文研究山西西南部黄土区小流域的泥沙来源。
West limestone dry stone mountain, central as the Loess Plateau hilly region and the Taiwan area, the eastern plains area, 731-1716 m above sea level in between.
西部为石灰岩干石山区，中部为黄土丘陵区和台塬区，东部为平原区，海拔高度在731-1716米之间。
Wind erosion is one of the most calamity weather phenomenon in loess hilly-gully area of Hebei Province, it often occurs in winter or spring.
风沙是河北省黄土丘陵区较常见的灾害性天气现象之一，多发生于冬春季节。
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