论文部分内容阅读
西藏一江两河地区是经济快速发展地区,由于高寒和多风少雨,生态环境条件极其恶劣,景观系统抗御和修复干扰的能力微弱.因此,在该地区实施大农业开发工程不能走传统的开荒要粮的道路,而应实施农业景观调整规划,规划的重要内容有3项,即实施现代农业技术使现有的高产田改造成稳产高产田;使现有的大量中低产田改造成有灌排条件的高产田;选择干旱坡地、不平整土地和与当地农民生活相关不密切的旱地退耕还林还草.从而解决粮食需求问题,遏止生态环境急剧退化的趋势.
Due to the alpine and windy weather, the ecological and environmental conditions are extremely poor, and the capacity of the landscape system to resist and repair interference is weak. Therefore, the implementation of large-scale agricultural development projects in the region can not follow the traditional pioneers Grain should be the road, and should implement the adjustment of agricultural landscape planning, planning an important content of three, that is, the implementation of modern agricultural technology so that the existing high-yield fields transformed into stable and high yield fields; the existing large number of low-yield fields into irrigation High-yielding fields and high-yielding fields, and choose dry slopes, uneven land and dry land that is not closely related to the life of local peasants, so as to solve the problem of grain demand and prevent a sharp deterioration of the ecological environment.