loess hill region

基本解释

But in order to achieve an equilibrium of demand and supply, loess hill regions must import grain from the Loess Platform region.
但具体到分区而言，黄土丘陵区必须通过粮食调入才能满足本区需求，而黄土台塬区则有一定盈余。
Application of decision support system based on GIS for returning farmland to forestland or grassland in the loess hill semi-arid region;
退耕还林还草是我国在西部大开发中实施的一项重大生态建设工程。