| 滇东石漠化地区不同植被模式土壤渗透性研究 |
| |
| 引用本文： | 赵洋毅,段旭.滇东石漠化地区不同植被模式土壤渗透性研究[J].水土保持研究,2014,21(4):45-49. |
| |
| 作者姓名： | 赵洋毅 段旭 |
| |
| 作者单位： | 1. 西南林业大学 环境科学与工程学院, 昆明 650224;2. 西南林业大学 林学院, 昆明 650224 |
| |
| 摘 要： | 利用环刀法，对滇东喀斯特石漠化地区4种不同植被治理模式样地（以裸地为对照）的土壤渗透性进行研究，结果表明:（1）各植被治理模式土壤渗透性指标均好于对照裸地。0—20 cm土层以针阔混交林模式的初渗率最大，灌草植被模式的土壤稳渗率、平均渗透速率和60 min渗透总量要优于其它模式；20—40 cm以针叶林模式的土壤渗透性各项指标为最大，其次分别为针阔混交林模式、阔叶林模式和灌草模式，裸地最差。（2）不同模式及不同土壤层次对土壤入渗能力影响均显著（P=0.003和P=0.046），植被治理模式对土壤入渗能力影响显著性更高。（3）Kostiakov方程和通用经验方程对土壤入渗过程的拟合效果最好，比较适用于本研究区域不同植被模式土壤入渗特征的模型描述和入渗过程的预测，Philip方程拟合效果次之，Horton方程效果最差。
|
| 关 键 词： | 喀斯特 石漠化 土壤渗透性 植被恢复模式 滇东 |
Study on Soil Infiltration Capability under Different Vegetation Models in Rocky-Desertification Areas of Karst in Eastern Part of Yunnan Province |
| |
| ZHAO Yang-yi,DU Xu.Study on Soil Infiltration Capability under Different Vegetation Models in Rocky-Desertification Areas of Karst in Eastern Part of Yunnan Province[J].Research of Soil and Water Conservation,2014,21(4):45-49. |
| |
| Authors: | ZHAO Yang-yi DU Xu |
| |
| Institution: | 1. College of Environment Science and Engineering, Southwest Forestry University, Kunming 650224, China;2. College of Forestry, Southwest Forestry University, Kunming 650224, China |
| |
| Abstract: | Cutting ring infiltration method was used to quantitatively measure the soil infiltration capacity under 4 kinds of different vegetation models in rocky-desertification areas of the karst in eastern part of Yunnan Province. The results indicated that: (1) the infiltration capability of all forest plots was higher than that of bare land, the conifer initial infiltration rate of the 0—20 cm soil layer to the maximum mode were the best, and the steady infiltration rate, the average penetration rate and 60min total penetration of the shrub and grass vegetation patterns are superior to other modes; the indicators of the 20—40 cm of the coniferous forest mode could be the largest, followed by mixed coniferous mode, shrub and grass and broadleaf forest pattern mode; (2) the soil infiltration capability values were significantly different in different vegetation models and different soil layers in the same model. (P=0.003,P=0.046); (3) a common empirical infiltration model and Kostiakov model could describe the best performance on the infiltrating processes in the eight forest models, followed by the Philip model and the Horton model. |
| |
| Keywords: | karst rocky-desertification soil infiltration capability vegetation restoration morel eastern part of Yunnan Province |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《水土保持研究》浏览原始摘要信息 |
| 点击此处可从《水土保持研究》下载免费的PDF全文 |
|
