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自然资源学报 1989
THE RELATION BETWEEN THE YIELD OF NATURAL MEADOW AND CLIMATIC FACTORS AND ESTIMATION OF YIELD OF ARTIFICIAL MEADOW
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Abstract:
In this paper, informations of meadow yield of Ningxia region are utilized to analyse the relation between yield and climatic factors. Results show that moisture factor is the main factor for yield ehange. Checking against actual conditions for this region, the empirical coefficient (k = 0.9) for calculating dry weight of Alfalfa is replaced by k = 1.2. Then the maximum gields of both the meadown under fullirrigtion condition and the meadow under natural rain-fead condition are calculated. The results of this study may provide some scientific basic information for planning and construction of animal husbandry production bases in this region.
