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.
在干旱、半干旱区,
业生态环境日益恶化
现象比较严
,已
业
展
障碍。
业生态(学)
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.
在干旱、半干旱区,业生态环境日益恶化现象比较严,已业展障碍。
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