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南方红壤丘陵区油桐人工林土壤水分动态

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成果类型:
期刊论文
作者:
黄志刚;曹云;欧阳志云;屠乃美;郑华
通讯作者:
Huang, Z.-G.
作者机构:
[曹云; 欧阳志云; 郑华] State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Department of Ecology and Agriculture, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
[屠乃美] College of Agronomy, Hunan Agricultural University, Changsha 410128, China
[黄志刚] State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China, Department of Ecology and Agriculture, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
通讯机构:
[Huang, Z.-G.] S
State Key Laboratory of Urban and Regional Ecology, , Beijing 100085, China
语种:
中文
关键词:
红壤丘陵区;油桐人工林;垂直变化;土壤水分;土壤蓄水量
关键词(英文):
Hilly red soil region;Soil water;Soil water storage;Vernicia fordii plantation;Vertical change
期刊:
应用生态学报
ISSN:
1001-9332
年:
2007
卷:
18
期:
2
页码:
241-246
基金类别:
国家重点基础研究发展规划项目(G2000046807); 国家自然科学基金资助项目(30230090).;
机构署名:
本校为其他机构
院系归属:
农学院
摘要:
利用时域反射仪(TDR)定位监测方法,研究了南方红壤丘陵区油桐人工林土壤水分动态规律.结果表明:不同月份间土壤蓄水量差异达极显著水平,研究时段内土壤水分动态变化可划分为土壤水分积累期、土壤水分消耗期和土壤水分稳定期3个时期;油桐人工林土壤水分垂直变化显著,且不同季节的变化规律各异;土壤蓄水量与大气相对湿度(RH)、大气温度(t)、饱和水汽压差(VPD)、降雨量(R)等气象因子显著相关(P〈0.05);次降雨后,土壤水分损失率与干旱天数呈显著的双曲函数关系,土壤蓄水量与雨后干旱天数呈显著的线性负相关(P〈0.05);在次降雨后的持续干旱条件下,土壤水分损失随着土层深...
摘要(英文):
By using time domain reflectometry (TDR) , a fixed-position monitoring was made on the dynamic characteristics of soil water under Vernicia fordii plantation in the hilly red soil region of Southern China. The results showed that there was a significant difference in the soil water storage among different months, and the dynamics of soil water could be described as the phases of accumulation, depletion, and stabilization. Soil water had a significant variation in its vertical distribution, and the variation pattern differed in different seasons. Significant correlations existed between soil wa...

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