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| 宁夏六盘山不同森林类型林地的贮水量 | |
| 引用本文： | 张永利,魏文俊,冷泠.宁夏六盘山不同森林类型林地的贮水量[J].中国水土保持科学,2007,5(5):32-36. |
| 作者姓名： | 张永利 魏文俊 冷泠 |
| 作者单位： | 1. 国家林业局科技司,100714,北京 2. 内蒙古农业大学林学院,010019,呼和浩特 3. 中国林业科学研究院森林生态环境与保护研究所,国家林业局森林生态环境重点实验室,100091,北京 |
| 基金项目： | 国家重点基础研究发展计划(973计划);江西大岗山国家级森林生态站资助项目 |
| 摘 要： | 为评价宁夏六盘山不同森林类型的水源涵养生态功能,对宁夏六盘山地区华北落叶松人工纯林、辽东栎天然纯林、白桦+山杨天然混交林和华山松+红桦+白桦天然混交林4种林地枯落物和土壤的贮水特征进行研究。采用样方法和浸泡法测定枯落物不同层次的最大持水量和持水特性,采用环刀法和浸泡法测定土壤水分物理性质和贮水量。结果表明:林地枯落物层饱和贮水量为华山松+红桦+白桦天然混交林最大,华北落叶松人工纯林次之,辽东栎天然纯林其次,白桦+山杨天然混交林最小;除华北落叶松人工纯林枯落物未分解层和华山松+红桦+白桦天然混交林半分解层在浸泡6h时达到最大持水量外,其他森林类型各层次均在浸泡3h时达到最大持水量;土壤饱和贮水量为华山松+红桦+白桦天然混交林最大,辽东栎天然纯林次之,华北落叶松人工纯林其次,白桦+山杨天然混交林最小。 |
| 关 键 词： | 枯落物层 森林土壤 枯落物贮水量 土壤贮水量 |
| 修稿时间： | 2007-03-09 |
Water storage capacity of different forested lands in Liupan Mountains in Ningxia |
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| Zhang Yongli,Wei Wenjun,Leng Ling.Water storage capacity of different forested lands in Liupan Mountains in Ningxia[J].Science of Soil and Water Conservation,2007,5(5):32-36. | |
| Authors: | Zhang Yongli Wei Wenjun Leng Ling |
| Institution: | 1.Department of Science and Technology,State Forestry Administration,China,100714,Beijing;2.Forestry College,Inner Mongolia Agricultural University,010019,Hohhot;3.Institution of Forest Ecology,Environment and Protection,CAF,Forestry Ecology Environment Main Laboratory,State Forestry Administration,100091,Beijing:China |
| Abstract: | In order to estimate water conservation function of different forests in Liupan Mountains, researches on the characteristics of water storage capacity of forest litter and soil are carried out, they are Larix principisrupprechtii pure plantation, Quercus liaotungensis pure natural forest, Betula platyphylla and Populus davidiana mixed natural forest, Pinus arrnandii and Betula albo-sinensis and Betula platyphlla mixed natural forest. Litter storage quantity is determined by square samples and its water retention capacity is determined by soaking in water. Soil physical properties related to water are measured by cutting ring and soaking in water. As to amount of water contained in litters, it showed that Pinus arrnandii and Betula albo-sinensis and Betula platyphlla mixed natural forest is the largest, Larix principis-rupprechtii pure plantation is larger, then is Quercus liaotungensis pure natural forest, finally is Betula platyphylla and Populus davidiana mixed natural forest. Undecomposed litters of Larix principis-rupprechtii pure plantation and half-decomposed litters of Pinus arrnandii and Betula albo-sinensis and Betula platyphlla mixed natural forest become saturated after 6 hours dripping in water and others all are 3 hours. As to maximum soil water storage amount, results showed that Pinus arrnandii and Betula albo-sinensis and Betula platyphlla mixed natural forest is the largest, Quercus liaotungensis pure natural forest is larger, then is Larix principis-rupprechtii pure plantation, finally is Betula platyphylla and Populus davidiana mixed natural forest. |
| Keywords: | forest litters forest soil water storage capacity of litter water storage capacity of soil |
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