| 宁夏天然草场产量与气候因子关系及人工草地产量估算 |
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| 引用本文： | 侯光良,陈沈斌.宁夏天然草场产量与气候因子关系及人工草地产量估算[J].自然资源学报,1989,4(1):54-59. |
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| 作者姓名： | 侯光良 陈沈斌 |
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| 作者单位： | 中国科学院自然资源综合考察委员会，国家计划委员会自然资源综合考察委员会 |
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| 摘 要： | 本文利用了宁夏地区草场产量资料,分析了它与气候因子的关系,结果表明水分是制约产量变化的主导因子。又结合本区实际情况,将文献1]计算苜蓿作物干物质产量经验系数(K=0.9)修正为1.2,而后计算了充分灌溉和靠天然降水条件下两类耕地的牧草最大产量,这些研究结果,为本区畜牧业生产建设和规划提供了科学依据。
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| 关 键 词： | 平均产量 平均可利用产量 干燥度 最大产量 |
THE RELATION BETWEEN THE YIELD OF NATURAL MEADOW AND CLIMATIC FACTORS AND ESTIMATION OF YIELD OF ARTIFICIAL MEADOW |
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| Hou Guangliang Chen Shenbin Liu Yunfen.THE RELATION BETWEEN THE YIELD OF NATURAL MEADOW AND CLIMATIC FACTORS AND ESTIMATION OF YIELD OF ARTIFICIAL MEADOW[J].Journal of Natural Resources,1989,4(1):54-59. |
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| Authors: | Hou Guangliang Chen Shenbin Liu Yunfen |
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| Institution: | Commission for Integrated Survey of Natural Resources, Chinese Academy of Scicneis |
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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. |
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| Keywords: | average yield average possibly utilizable yield aridity maximum yield |
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