LIU Hua-Zhou, CHEN Yu-Hua. ANALYSIS ON PRIMARY PRODUCTIVITY OF AGROECOSYSTEM ACCORDING TO ENVIRONMENTAL RESOURCES OF CROP[J]. Journal of Ecology and Rural Environment, 1990, 6(2): 11-13,56.
Citation:
LIU Hua-Zhou, CHEN Yu-Hua. ANALYSIS ON PRIMARY PRODUCTIVITY OF AGROECOSYSTEM ACCORDING TO ENVIRONMENTAL RESOURCES OF CROP[J]. Journal of Ecology and Rural Environment, 1990, 6(2): 11-13,56.
LIU Hua-Zhou, CHEN Yu-Hua. ANALYSIS ON PRIMARY PRODUCTIVITY OF AGROECOSYSTEM ACCORDING TO ENVIRONMENTAL RESOURCES OF CROP[J]. Journal of Ecology and Rural Environment, 1990, 6(2): 11-13,56.
Citation:
LIU Hua-Zhou, CHEN Yu-Hua. ANALYSIS ON PRIMARY PRODUCTIVITY OF AGROECOSYSTEM ACCORDING TO ENVIRONMENTAL RESOURCES OF CROP[J]. Journal of Ecology and Rural Environment, 1990, 6(2): 11-13,56.
ANALYSIS ON PRIMARY PRODUCTIVITY OF AGROECOSYSTEM ACCORDING TO ENVIRONMENTAL RESOURCES OF CROP
Crop productivity depends on "environment-crop" system.A model for the primary productivity of agroecosystem was established in this study based on the environmental resources( e.g.light, heat, water and nutrients) of crop. The model is Y = F(Q)·f (T)·f (W)·f (M). Each environmental factor which affected the extent of potential productivity of crop was analyzed.
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