毛竹林内降水再分配及其水文效应分析  

Analysis of Precipitation Redistribution and Hydrological Effect in Bamboo Forest

作　　者：王安可 周洲 林上平 杜旭华 毕毓芳 郭帆 王玉魁 WANG An-ke;ZHOU Zhou;LIN Shang-ping;DU Xu-hua;BI Yu-fang;GUO Fan;WANG Yu-kui(China National Bamboo Research Center,Hangzhou 310012,Zhejiang,China;National Long-term Observation and Research Station for Forest Ecosystem in Hangzhou-Jiaxing-Huzhou Plain,Hangzhou 310012,Zhejiang,China;Forestry Work Station of Daotai Township,Longquan City,Lishui 323700,Zhejiang,China)

机构地区：[1]国家林业和草原局竹子研究开发中心,浙江杭州310012 [2]浙江杭嘉湖平原森林生态系统国家定位观测研究站,浙江杭州310012 [3]龙泉市道太乡林业工作站,浙江丽水323700

出　　处：《竹子学报》2021年第3期85-89,共5页Journal of Bamboo Research

基　　金：浙江省重点研发计划项目(2020C02008);中央级公益性科研院所专项(CAFYBB2019MB005)。

摘　　要：分析了毛竹林内降水再分配过程,旨在了解毛竹林生态系统的降水分配规律和竹林水文效应,为优化毛竹生态经济型栽培提供依据。结果表明:毛竹林的叶、枝、秆和竹林下枯枝落叶层均可吸附一定量的大气降水,并有效缓解大气降水对林地表面的直接冲蚀和地表径流的产生,减少水土流失机率。但是,毛竹纯林对降水的截留量和截留率与其它不同类型的森林相比优势并不明显,特别是集约经营的毛竹林,由于林下缺少灌木或草丛,凋落物和枯枝落叶层积聚较少,蓄水能力较差。因此,在毛竹生态经济栽培经营过程中,应当注意保护林下灌丛植被,并根据不同立地条件(坡度、土壤质地、土壤结构等),确定适宜的立竹密度、营造竹阔混交林。In order to understand the precipitation distribution law and hydrological effect of bamboo forest ecosystem,the precipitation redistribution process in bamboo forest was analyzed,which may provide basis for optimizing eco-economic planting of bamboo forest.The results showed that the soil erosion was reduced because bamboo leaves,branches,culms and ground litter were all able to retain a certain amount of atmospheric precipitation and effectively alleviate the direct erosion of the land caused by the rainfall and surface runoff.However,compared with other different types of forests,pure bamboo forests didn′t have significant advantages in terms of precipitation interception and interception rate.Especially for the intensively managed bamboo forests,there were almost no shrubs or grasses in the forests,and the accumulation of litter was much less than that in the wild bamboo forests,which led to poor water retention capability.Therefore,in the eco-economic management of bamboo forests,it is of great importance to preserve and protect undergrowth shrubs and other vegetation.Meanwhile,the proper plant density of bamboo forests shall be determined and the mixed forests of bamboo and broadleaved shall be established according to different environmental conditions,such as slope,soil texture,soil structure,etc.

关 键 词：毛竹 林内降水 降水再分配 水文效应 

分 类 号：S795[农业科学—林木遗传育种]