| 长三角地区毛竹林冠截留的影响因素 |
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| 引用本文： | 韩诚,庄家尧,张金池,汪春林,刘鑫,顾哲衍.长三角地区毛竹林冠截留的影响因素[J].水土保持通报,2014(3):92-96. |
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| 作者姓名： | 韩诚 庄家尧 张金池 汪春林 刘鑫 顾哲衍 |
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| 作者单位： | 南京林业大学森林资源与环境学院, 江苏南京 210037;南京林业大学森林资源与环境学院, 江苏南京 210037;南京林业大学森林资源与环境学院, 江苏南京 210037;南京林业大学森林资源与环境学院, 江苏南京 210037;南京林业大学森林资源与环境学院, 江苏南京 210037;南京林业大学森林资源与环境学院, 江苏南京 210037 |
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| 基金项目： | 国家公益林行业重大专项 "典型森林植被对水资源形成过程的调控研究"(201104005); 国家自然科学基金项目"安徽大别山区GIS 支持下的土壤侵蚀模型研究"(31170663); 江苏省高等学校林学优势学科建设项目资助"(164010641) |
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| 摘 要： | 为了探究毛竹林林冠截留与其影响因素之间的关系,于2012年4月至2013年3月,定位观测了毛竹林的林冠截留特征以及相关影响因子数据。结果表明,研究期内,长三角地区毛竹林的穿透雨率、树干茎流率和林冠截留率,分别占同期降雨总量的60.6%,6.7%和32.7%;林冠枝叶部分与树干部分的持水能力分别为0.82和0.1mm;引入叶面积指数作为林冠特征并与林冠截留进行分析,结果发现各月林冠截留总量随月平均叶面积指数的增加呈一定程度上增大的趋势,月平均林冠截留率随各月平均叶面积指数的增大而减小;各气象因子与毛竹林的林冠截留量的灰色关联度大小顺序为:降雨强度降雨量风速空气温度风向空气湿度,各气象因子与毛竹林的林冠截留率的灰色关联度大小顺序依次为:空气温度风向降雨量风速降雨强度空气湿度。
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| 关 键 词： | 长三角地区 毛竹 穿透雨 树干茎流 林冠截留 叶面积指数 灰色关联度 |
| 收稿时间： | 7/7/2013 12:00:00 AM |
| 修稿时间： | 2013/7/10 0:00:00 |
Factors Influencing Canopy Interception of Phyllostachy Edulis Forest in Yangtze River Delta Region |
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| HAN Cheng,ZHUANG Jia-yao,ZHANG Jin-chi,WANG Chun-lin,LIU Xin and GU Zhe-yan.Factors Influencing Canopy Interception of Phyllostachy Edulis Forest in Yangtze River Delta Region[J].Bulletin of Soil and Water Conservation,2014(3):92-96. |
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| Authors: | HAN Cheng ZHUANG Jia-yao ZHANG Jin-chi WANG Chun-lin LIU Xin and GU Zhe-yan |
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| Institution: | College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, Jiangsu 210037, China |
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| Abstract: | In order to determine the relationship between influencing factors and canopy interception of Phyllostachy edulis forest, the canopy interception and influencing factors were studied with location fixed observation method from April 2012 to March 2013. Results showed that the throughfall, stemflow and canopy interception accounted for 60.6%, 6.7% and 32.7% of total precipitation during the study period. Canopy storage capacity and stem storage capacity of Phyllostachy edulis forest were 0.82 and 0.1 mm, respectively. Leaf area index(LAI) was introduced as a canopy characteristic and the correlation between LAI and canopy interception was analyzed. Canopy interception of each month increased with the increase in mean monthly LAI to some extent. Mean monthly canopy interception rate decreased with the increase of mean monthly LAI outstandingly. The environmental factors influencing canopy interception were evaluated by gray relational grade which showed an order as: rainfall intensity > precipitation > wind speed > temperature > wind direction > air humidity, while the order of the environmental factors influencing canopy interception rate, as evaluated with the same method, was: temperature > wind direction > precipitation > wind speed > rainfall intensity > air humidity. |
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| Keywords: | Yangtze River delta region Phyllostachy edulis throughfall stemflow canopy interception LAI gray relational grade |
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