Based on an investigation into productivity, soil water and soil nutrient content of croplands, artificial grasslands (Medicago saliva) and shrub forests (Caragana korshinskii), and natural grasslands in the northern region of Shaanxi Province, the productivity differences among different vegetation types and territories are discussed comparatively, and the reasons for these differences are analyzed. The results show that the productivity of croplands( foxtail millet) was far better than that other plants o...
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