引用本文: | 干旱半干旱区退耕还林还草工程效益综合评价以榆中县为例[J]. 草业科学, 2012, 6(9): 1359-1367. |
Citation: | Comprehensive evaluation of returning cropland to forest andgrassland in the arid andsemiarid region A case study of Yuzhong County[J]. Pratacultural Science, 2012, 6(9): 1359-1367. |