| 井冈山国家级自然保护区杉木林冠层的截留模型 |
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| 引用本文： | 白雲,李新通,苏德,杨巍,曾以平,万春.井冈山国家级自然保护区杉木林冠层的截留模型[J].水土保持通报,2016,36(2):216-221. |
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| 作者姓名： | 白雲 李新通 苏德 杨巍 曾以平 万春 |
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| 作者单位： | 1. 中国环境科学研究院环境基准与风险评估国家重点实验室国家环境保护区域生态过程与功能评估重点实验室,北京100010;福建师范大学地理科学学院,福建福州350007;井冈山生态环境综合观测研究站,江西井冈山343699;2. 福建师范大学地理科学学院,福建福州,350007;3. 中国环境科学研究院环境基准与风险评估国家重点实验室国家环境保护区域生态过程与功能评估重点实验室,北京100010;江西井冈山国家级自然保护区管理局,江西井冈山343699;井冈山生态环境综合观测研究站,江西井冈山343699;4. 中国环境科学研究院环境基准与风险评估国家重点实验室国家环境保护区域生态过程与功能评估重点实验室,北京100010;井冈山生态环境综合观测研究站,江西井冈山343699;5. 江西井冈山国家级自然保护区管理局,江西井冈山,343699 |
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| 基金项目： | 国家科技支撑计划项目"井冈山生态旅游资源监测预警技术研究与示范"(2012BAC11B03);改革专项启动经费项目(2011GQ-12) |
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| 摘 要： | 目的]研究和改进井冈山国家级然保护区杉木林冠层截留模型,为研究区森林资源生态价值评价、水资源保护和管理、生态环境保护等相关研究提供理论基础。方法]以仪垂祥等提出的冠层截留模型为基础,对其进行改进,并以实测杉木林截留数据对模型进行率定和验证。结果]经实测数据率定,降雨过程中的附加截留量与"截留剩余雨量"(降雨量与叶面截留量的差值)呈幂函数关系。率定之后的模型在次降雨截留模拟的自检验分析中模型有效系数为0.90,比经验模型模拟的精度更高,在其他样地的累计截留模拟中的相对偏差平均为6.49%,模拟精度与同类研究中Gash模型的模拟精度相当。结论]经率定的改进模型可以应用于研究区杉木林的冠层截留模拟。
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| 关 键 词： | 井冈山国家级自然保护区 杉木林 冠层截留模型 附加截留 |
| 收稿时间： | 2015/1/27 0:00:00 |
| 修稿时间： | 2015/4/19 0:00:00 |
Model Refinement of Canopy Interception of Rainfall by Chinese Fir Forests at Jinggangshan National Nature Reserve |
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| BAI Yun,LI Xintong,SU De,YANG Wei,ZENG Yiping and WAN Chun.Model Refinement of Canopy Interception of Rainfall by Chinese Fir Forests at Jinggangshan National Nature Reserve[J].Bulletin of Soil and Water Conservation,2016,36(2):216-221. |
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| Authors: | BAI Yun LI Xintong SU De YANG Wei ZENG Yiping and WAN Chun |
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| Institution: | State Key Laboratory of Environmental Criteria and Risk Assessment, National State Environmental Protection Key Laboratory of Ecological Regional Processes and Functions Assessment, CRAES, Beijing 100010, China;College of Geographical Sciences, Fujian Normal University, Fuzhou, Fujian 350007, China;Integrated Ecological Observation and Research Station of Jinggangshan, Jinggangshan, Jiangxi 343699, China,College of Geographical Sciences, Fujian Normal University, Fuzhou, Fujian 350007, China,State Key Laboratory of Environmental Criteria and Risk Assessment, National State Environmental Protection Key Laboratory of Ecological Regional Processes and Functions Assessment, CRAES, Beijing 100010, China;Administration of Jingangshan National Nature Reserve, Jingangshan, Jiangxi 343699, China;Integrated Ecological Observation and Research Station of Jinggangshan, Jinggangshan, Jiangxi 343699, China,State Key Laboratory of Environmental Criteria and Risk Assessment, National State Environmental Protection Key Laboratory of Ecological Regional Processes and Functions Assessment, CRAES, Beijing 100010, China;Integrated Ecological Observation and Research Station of Jinggangshan, Jinggangshan, Jiangxi 343699, China,Administration of Jingangshan National Nature Reserve, Jingangshan, Jiangxi 343699, China and Administration of Jingangshan National Nature Reserve, Jingangshan, Jiangxi 343699, China |
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| Abstract: | Objective] Rainfall interception by forest canopy is an important eco-hydrological process of forest. We aimed to model the canopy interception process by chinese fir forest in Jinggangshan nature reserve in order to provide some bases for relevant researches with respect to eco-value evaluation of forest, protection and management of water resources, and environment protection of this region, et al. Methods] A model developed by Yi Chuixiang et al was refined. And it was calibrated and validated by observed interception data in a chinese fir forest. Results] The model calibration showed that extra interception as a dependent variable is a power function of remained-rainfall, defined as the result of atmosphere rainfall minus the value intercepted by plant leaves. The calibrated model performed better than those empirical models and is comparable to Gash model in similar researches. The effective coefficient and relative bias in predicting single rainfall event were 0.9 and 6.49%, respectively. Conclusion] After calibration, the improved model in our study can be used for simulating canopy interception by chinese fir forest in the research region. |
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| Keywords: | Jinggangshan National Nature Reserve chinese fir forest model of canopy interception extra interception |
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