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| 攀枝花干热河谷区环境对水分的影响 | |
| 引用本文： | 蒋俊明,张旭东,费世民,周金星,蔡小虎.攀枝花干热河谷区环境对水分的影响[J].中国水土保持科学,2008,6(Z1):41-47. |
| 作者姓名： | 蒋俊明 张旭东 费世民 周金星 蔡小虎 |
| 作者单位： | 1. 四川省林业科学研究院,610081,成都;中国林业科学研究院林业研究所,100091,北京 2. 中国林业科学研究院林业研究所,100091,北京 3. 四川省林业科学研究院,610081,成都 |
| 基金项目： | 麻疯树高产稳产培育技术研究与示范(2007BAD50501303); 中国森林生态网络体系建设攀枝花点的研究(2002BA516A17-09); |
| 摘 要： | 以"水分"为核心,通过对区域气候、土壤水源涵养功能、植物的耗水特点和土壤水分动态4方面的分析,提出攀枝花干热河谷植被恢复的一些关键技术.得出:1)旱季水热的非同步性是植被恢复困难的所在;坡向导致的微气候差异是干热河谷阴坡、阳坡植被分异的主要原因.2)攀枝花干热河谷地段粗骨性红壤土层浅薄,蓄水能力较弱,土壤层饱和蓄水量和稳渗率分别为3.8～5.0 mm/cmm土层、0.77～4.72 mm/min),土壤有效水约为饱和蓄水量的50%.3)该土壤母质因其特殊性,仍有较强的蓄水能力,饱和蓄水量(1.8～2.8mm/cm土层)和人渗率(0.13～0.26 mm/min)虽低于土壤层,但其有效蓄水量却与土壤层相近.4)深层土壤,特别是母质层水分数量对维持植物旱季生存有着重要的意义.因此,增加土层厚度、提高土壤,特别是母质层的入渗能力是该类土壤植被恢复的关键技术措施.5)不同植物旱季日均耗水量差异较大,树种的合理配置与否直接影响植被恢复成效.目前该区营造的麻疯树、番麻、构树、加纳比松、车桑子和台湾相思均具有较强的耐早能力. |
| 关 键 词： | 干热河谷 植被恢复 水热关系 土壤蓄水能力 植物耗水率 水分动态 |
Effects of environment on soil water in dry-hot valleys of Panzhihua |
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| Jiang Junming,Zhang Xudong,Fei Shimin,Zhou Jinxing,Cai Xiaohu.Effects of environment on soil water in dry-hot valleys of Panzhihua[J].Science of Soil and Water Conservation,2008,6(Z1):41-47. | |
| Authors: | Jiang Junming Zhang Xudong Fei Shimin Zhou Jinxing Cai Xiaohu |
| Affiliation: | Jiang Junming1,2,Zhang Xudong2,Fei Shimin1,Zhou Jinxing2,Cai Xiaohu1(1.Sichuan Academy of Forestry,610081,Chengdu,2.Institute of Forestry,Chinese Academy of Forestry,100091,Beijing:China) |
| Abstract: | The deficiency of soil water in dry season was the main limited factor for restoration of vegetation in dry-hot valleys.In this paper,focusing on the water environment,some key approaches for the restoration of vegetation in the area of Panzhihua were advanced according to four aspects with the regional climate,water-holding capacity of soil,the water-consuming feature of vegetations and dynamics of soil water,and some main conclusions were also made as follows.(1) The difficulty in restoration of vegetatio... |
| Keywords: | dry-hot valley vegetation restorations relationship between water and temperature water-holding capacity consuming ratio of vegetation water dynamics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
