The phenomena of agroecological environment are becoming worse and worse in the arid and semi-arid regions that has become the predominant obstacle for agriculture development.
在
、
区,农业
态环境日益恶化的现象比较严重,已
为农业
展的重大障碍。
态(学)的The phenomena of agroecological environment are becoming worse and worse in the arid and semi-arid regions that has become the predominant obstacle for agriculture development.
在、区,农业态环境日益恶化的现象比较严重,已为农业展的重大障碍。
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