太行山低山丘陵区坡面水文过程对植被变化的响应研究

项目名称： 太行山低山丘陵区坡面水文过程对植被变化的响应研究

项目编号： No.41501025

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 地质学

项目作者： 李庆云

作者单位： 华北水利水电大学

项目金额： 22万元

中文摘要： 太行山低山丘陵区植被稀疏、水土流失严重，土地瘠薄和水资源短缺是区域植被恢复建设的制约性因素。项目位于黄河小浪底库区北岸，依托黄河小浪底森林生态系统定位研究站，基于定位观测、野外试验和室内模拟，开展植被变化对坡地水文过程影响机制的研究。在坡面尺度上进行林冠层、凋落物层和土壤层的定位观测试验，重点关注植被生长的不同阶段及植被生长的季节动态所引起覆盖变化对产流的作用机理；建立耦合坡地产流与入渗过程的具有物理机制的分层组合产流模型，对该区域引进分布式水文模型的产流模块进行初试；结合植被生态过程，采用水文模型BROOK90进行植被变化的生态水文响应研究，揭示坡面产流规律。本研究将水文学与生态学有机结合，为小浪底库区及太行山低山丘陵区退化植被恢复、水土保持建设提供一定科学支撑。

中文关键词： 森林水文；水文模型；生态与水文耦合；土壤水分；降雨截留

英文摘要： The vegetation is very sparse, and soil erosion is serious in low mountainous region of Taihang Mountain, barren land and insufficient water are main limiting factors on vegetation restoration. This research is located in the north bank of Xiaolangdi Reservoir, and supported by Huanghe Xiaolangdi Forest Ecosystem Research Station to study the effects of vegetation changes on slope hydrological process. Based on locating observation, field experiment and laboratory simulation, canopy class, litter and soil layer will be observed and sampled, the functional mechanism of cover changes caused by different stages and seasonal dynamic of vegetation growth on slope runoff will be especially concerned. The physically based slope runoff model coupling runoff and infiltration will be established, which is a valuable try on runoff module of regional distributed hydrological model. Combined with vegetation ecological process, BROOK90 model is used to simulate the response of eco-hydrology to vegetation changes to reveal mountain runoff rules. This research combines hydrology with ecology systematically, and will contribute to vegetation reconstruction and soil and water conservation in Xiaolangdi Reservoir and degraded hilly region of Taihang Mountain.

英文关键词： forestry hydrology;hydrological model;coupling ecology with hydrology;soil moisture;interception