Potential wastes methane resources of eco-agricultural and its beneficial analysis in north Linxia irrigation tableland, Gansu Province | 甘肃临夏北塬灌区农业废弃物沼气化资源潜力及循环农业经济模式分析
2012
Zhang Haicheng, Northwest Agriculture and Forestry University, Yangling (China), College of Agronomy | Yang Gaihe, Northwest Agriculture and Forestry University, Yangling (China), College of Agronomy
chinois. 研究甘肃省临夏县北塬灌区农业废弃物沼气化资源的潜力及以农业废弃物为基础的农业循环经济模式的效益。在对临夏县北塬灌区9个乡镇实地调查的基础上，分析了临夏县北塬灌区农业废弃物沼气资源的开发潜力，并对该区典型的“沼气池-畜禽圈-粮(果、菜)”三位一体的沼气生态农业循环经济模式的结构和效益进行了研究。临夏县北塬灌区具有丰富的沼气资源，年产农作物秸秆8.90万t，畜禽排放物191.5万t，粪尿产气量占总发酵原料沼气潜力的84.4%，具备建立以沼气工程为纽带的生态农业条件。在临夏县建立以沼气工程为纽带的生态农业循环经济模式，能实现资源的多层次循环利用，改善当地生态环境，并可取得显著的经济、社会和生态效益。
Afficher plus [+] Moins [-]anglais. Methane resource development is the foundation of eco-agricultural economy. We discussed the feasibility and necessity of the development of methane resource in north Linxia irrigation tableland areas, and analyzed the structure and its benefit of the typical model of “biogas digester-stable-food (fruits, vegetables)”. The tableland areas had a wealth of methane resources, with annual crop straw 89 000 t, livestocks 1 915 000 t, and 84.4% of the waste gas production to total fermentation of raw biogas potential. Establishing a biogas-project-linked ecological agriculture economy mode can enforce the resource on multi-level recycling, improve ecological environment, and achieve significant economic, social and ecological benefits.
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