| 河南省林地最小生态需水定额测算 |
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| 引用本文： | 吴明作, 崔晶, 孟伟, 陈景玲, 王谦. 河南省林地最小生态需水定额测算[J]. 西南林业大学学报, 2013, 33(3): 45-51.doi:10.3969/j.issn.2095-1914.2013.03.008 |
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| 作者姓名： | 吴明作 崔晶 孟伟 陈景玲 王谦 |
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| 作者单位： | 1.河南农业大学林学院，河南 郑州 450002；;2.国家林业局泡桐研究开发中心，河南 郑州450003 |
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| 基金项目： | 国家林业局林业公益性行业科研专项（201104049，201104068）资助；国家科技部重大专项项目（2008ZX07526-002-03）资助。
摘要:依据河南省119个县（市）的气象资料与土壤类型分布状况，测算其所在地的林地最小生态需水定额，运用GIS等工具分析其空间变异特征。结果表明：河南省各地区的林地最小生态需水定额变化在30603~50051m3/hm2，平均为35811m3/hm2，最大值在登封市，最小值在卢氏县，其大小主要取决于林地植被的蒸散定额；趋势面分析表明，其空间变化为由南向北及由东部与西部向中部递增，排序结果表明相邻区域的空间连续性较好，不能划分出差异明显的区域。研究结果可为测算生态需水量与水量平衡等提供基础，也可为半干旱半湿润地区类似的大尺度研究提供借鉴。 |
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| 摘 要： | 依据河南省119个县（市）的气象资料与土壤类型分布状况，测算其所在地的林地最小生态需水定额，运用GIS等工具分析其空间变异特征。结果表明：河南省各地区的林地最小生态需水定额变化在30603~50051m3/hm2，平均为35811m3/hm2，最大值在登封市，最小值在卢氏县，其大小主要取决于林地植被的蒸散定额；趋势面分析表明，其空间变化为由南向北及由东部与西部向中部递增，排序结果表明相邻区域的空间连续性较好，不能划分出差异明显的区域。研究结果可为测算生态需水量与水量平衡等提供基础，也可为半干旱半湿润地区类似的大尺度研究提供借鉴。
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| 关 键 词： | 生态需水 最小定额 林地 GIS 河南省 |
| 收稿时间： | 2013-04-05 |
Minimum Quota of Ecological Water Requirement of Forestland in Henan Province |
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| WU Ming zuo1, CUI Jing1, MENG Wei2, CHEN Jing ling1 and WANG Qian1. Minimum Quota of Ecological Water Requirement of Forestland in Henan Province[J]. Journal of Southwest Forestry University, 2013, 33(3): 45-51.doi:10.3969/j.issn.2095-1914.2013.03.008 |
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| Authors: | WU Ming zuo1 CUI Jing1 MENG Wei2 CHEN Jing ling1 WANG Qian1 |
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| Affiliation: | 1.College of Forestry, Henan Agricultural University, Zhengzhou Henan 450002, China；;2.China Paulownia Research Center, State Forestry Administration, Zhengzhou Henan 450003, China |
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| Abstract: | Based on the data of 119 meteorological stations and soil type distribution in Henan Province, the minimum quota of ecological water requirement by forest land (MQEWRF) of each site was calculated, and its spatial variation feature was analyzed by using the GIS technique. The results showed that the MQEWRF in Henan Province varied from 30603m3/hm2 to 50051m3/hm2 with the average value of 35811m3/hm2. The MQEWRF value was mainly influenced by evapotranspiration of forest vegetation, whose maximum value was located in Dengfeng City whereas the minimum one was found in Lushi County. The spatial tendency analysis showed that the MQEWRF value increased from the southern to northern part, and from the eastern or western to the central part of Henan Province. The ordination showed there was a good spatial continuity among the adjacent regions, and there was no obvious difference among the regions. The results could be referred by the calculation of ecological water requirement and regional water balance, and by the similar research in a large scale in arid and semi arid regions. |
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| Keywords: | ecological water requirement the minimum quota forestland GIS Henan Province |
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