论草业与河西走廊生态安全

河西走廊日趋严重的土地荒漠化威胁着当地的经济发展和欧亚通道的生态安全。本研究分析了河西走廊生态安全面临的危机，提出草业因其强大的生态功能，可遏制河西走廊土地荒漠化，促进生态环境改善。并指出草业生态工程主要包括三方面内容：1）以保护现有草地植被为重点，构建风沙沿线生态保护草带；2）以调整种植业结构为重点，构建绿洲草畜转化生态产业带；3）以实施草畜平衡为重点，构建沿山农牧互补生态置换带。

Grassland industry and ecological security in the Hexi Corridor

Land desertification in the Hexi Corridor has accelerated due to changes in environments and intensification of human activities.This land desertification has threatened local economic development and ecological security of the Eurasian Continental Bridge.Based on the analysis of the Eco-security crisis for the Hexi Corridor,this paper indicated that ecological projects of grass industry should be built to prevent land desertification and improve Eco-security;and pointed out that the ecological engineering of grass industry mainly included three aspects: Firstly,windbreak and sand fixation ecological protection grass belts along the blown sand lines should be built to protect the existing grassland vegetation.Secondly,grass livestock transformation ecology industrial belts in oasis should be built to adjust planting structure.Finally,farming and animal husbandry complementary ecology displacement belts along the Qilian Mountains should be built to implement the balance between livestock numbers and forage resources.