| 湖南省紫鹊界梯田区人工林凋落物持水特性 |
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| 引用本文： | 张长伟,许文盛,李亚龙,程冬兵,张平仓.湖南省紫鹊界梯田区人工林凋落物持水特性[J].水土保持通报,2013(4):176-179. |
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| 作者姓名： | 张长伟 许文盛 李亚龙 程冬兵 张平仓 |
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| 作者单位： | 水利部长江水利委员会长江科学院水土保持研究所, 湖北 武汉 430010;水利部长江水利委员会长江科学院水土保持研究所, 湖北 武汉 430010;水利部长江水利委员会长江科学院水土保持研究所, 湖北 武汉 430010;水利部长江水利委员会长江科学院水土保持研究所, 湖北 武汉 430010;水利部长江水利委员会长江科学院水土保持研究所, 湖北 武汉 430010 |
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| 基金项目： | 水利部公益性行业科研专项“紫鹊界梯田原生态自流灌溉系统机理与保护措施研究”(201101030) |
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| 摘 要： | 通过对湖南省紫鹊界梯田区竹林与杉树混交林、竹林、草地、杉树林及板栗林5种植被凋落物样地调查,采用浸水实验和释水实验测定了各种类型凋落物的持水率、吸水速率、释水量和释水速率。结果表明,5种植被凋落物均具有较强的持水能力,最大持水率依次为420%(竹林与杉树林混交林),310%(竹林),283%(草地),252%(杉树林)和226%(板栗林);凋落物的持水率与浸泡时间之间呈对数函数关系,吸水速率与浸泡时间之间呈幂函数关系,释水量与释水时间之间呈对数函数关系,释水速率与释水时间之间呈幂函数关系,且以上函数拟合的相关系数R2均达到0.9以上。
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| 关 键 词： | 紫鹊界梯田 人工林 水源涵养 持水率 释水量 |
| 收稿时间： | 2012/10/15 0:00:00 |
| 修稿时间： | 2012/11/20 0:00:00 |
Water Holding Characteristics of Planted Forest Litter in Ziquejie Terrace in Hu'nan Province |
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| ZHANG Chang-wei,XU Wen-sheng,LI Ya-long,CHENG Dong-bing and ZHANG Ping-cang.Water Holding Characteristics of Planted Forest Litter in Ziquejie Terrace in Hu''nan Province[J].Bulletin of Soil and Water Conservation,2013(4):176-179. |
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| Authors: | ZHANG Chang-wei XU Wen-sheng LI Ya-long CHENG Dong-bing and ZHANG Ping-cang |
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| Institution: | Institute of Soil and Water Conservation, Scientific Research Institute of Yangtze River, Yangtze River Water Resources Commission, MWR, Wuhan, Hubei 430010, China;Institute of Soil and Water Conservation, Scientific Research Institute of Yangtze River, Yangtze River Water Resources Commission, MWR, Wuhan, Hubei 430010, China;Institute of Soil and Water Conservation, Scientific Research Institute of Yangtze River, Yangtze River Water Resources Commission, MWR, Wuhan, Hubei 430010, China;Institute of Soil and Water Conservation, Scientific Research Institute of Yangtze River, Yangtze River Water Resources Commission, MWR, Wuhan, Hubei 430010, China;Institute of Soil and Water Conservation, Scientific Research Institute of Yangtze River, Yangtze River Water Resources Commission, MWR, Wuhan, Hubei 430010, China |
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| Abstract: | According to filed survey of five different plantations of bamboo-fir mixed forest,bamboo forest, grassland,fir forest and chestnut forest in Ziquejie terrace of Hu'nan Province,the water hold-up,absorption,release of different types of litters were measured through tests of water soaking and releasing experiment.The results of the study indicated that the above five types of plantations was in the order of the water-holding capacity as:420% for bamboo and fir mixed forest,310% for bamboo forest,283% for grassland, 252% for fir forest,226% for chestnut forest;The correlation between water holding capacity and the soaking time was logarithmical,so was that between water releasing capacity and the releasing time while the correlations between water absorption capacity and soaking time,water releasing capacity and releasing time were of power function and all above correlation coefficients R2 were bigger than 0.9. |
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| Keywords: | Ziquejie terrace planted forest water conservation water-holding rate water release capacity |
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