| 摘要: |
| 乌兰察布盟地处中国北方农牧交错带，属于干旱半干旱地区，水资源短缺已成为该地区生态环境修复和经济发展的重要制约因素。文章对该地区水资源特点及存在问题进行了分析，采用统计年鉴资料计算出其草地和林地面积，并分别采用水量平衡法、定额法求出草地和林地植被需水量为120.63 亿m3，生态缺水10.83 亿～11.37 亿m3；据此提出了该地区基于生态需水的林草植被建设措施。 |
| 关键词: 水约束 林草植被 需水量 乌兰察布盟 |
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| 基金项目:国家重大基础预研项目（2005CCA05300） |
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| Analysis on water requirement of vegetations of woodland and meadow in the Wulanchabu league under ecological environment |
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| Abstract: |
| Located in north ecotone in China,Wulanchabu league belongs to semi-arid climate region and the shortage of water resource has seriously limited the economic development and ecological environment rehabilitation.Based on the analysis of the water resources characteristics and the existing problems,the areas of woodland and meadow were calculated based upon statistic yearbooks.The water requirements of different kinds of vegetations were calculated by water balance and ration method.Because the water requirement is mainly supplied by rainfall,through water balance analysis,the water requirement is 12.063 billion m3 and the shortage is 1. 083 billion-1. 137 billion m3 in the area.And accordingly measures to develop vegetations based on ecological water needs are put forward. |
| Key words: water resource vegetations of woodland and meadow water requirement Wulanchabu league |
