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黄土高塬沟壑区两种乔木林土壤水分平衡的模拟
张洛丹1,2; 张 瑜1,2; 朱元骏2; 黄明斌2
2015
Source Publication水土保持研究
Volume22Issue:2Pages:26-31
Abstract

为了了解黄土高塬沟壑区不同乔木林的耗水规律,利用长期定位试验资料和 Hydrus - 1D 模型详细研究了两
种乔木林(侧柏林,刺槐林)的土壤水分动态变化及水量平衡各要素的差异。结果表明:结合优化的水力参数, Hydrus

1D 模型能准确地模拟两种乔木林地土壤水分动态,模拟值与实测值均方根误差在 0.018~0.029cm
3 /
cm

之间,相
对平均绝对误差在 9.8%~12.5% 之间;水分平衡各要素受气候和植物类型影响,蒸散量是水平衡中的主要支出项,
侧柏林蒸散量占同期降水量的 83.4%~108.4% ,刺槐林蒸散量占同期降水量的 75.9%~96.2% ,生长季内刺槐林土
壤储水量始终大于侧柏林。

Other Abstract

: In order to investigate the differences in water consumption of two arbor forests grown in the gully
region of the Loess Plateau , Hydrus - 1Dmodel coupling the long - term experimental data was used to simu -
late the dynamics of soil water and soil water balance components in the sites grown Platyclatus orientalis
and Robinia pseudoacacia .With the calibrated and validated hydraulic parameters
, the Hydrus
- 1Dcould be
used to simulate soil water dynamics in two arbor forests.The root mean square errores between the simula -
ted and measured water contents ranged from 0.018cm
3 /
cm

to 0.029cm
3 /
cm
3 ,
while the mean absolute rel -
ative errores varied from 9.8%to 12.5%.The components of soil water balance were impacted by climatic
conditions and tree species.Evapotranspiration was the largest one among all components of soil water bal -
ance , which varied from 83.4%to 108.4%of total precipitation for Platyclatus oriental , and from 75.9%to
96.2% of total precipitation for Robinia pseudoacacia .With regard to the two trees , Robinia pseudoacacia
had the larger soil water storage than Platyclatus orientalis during the study period from 2011to 2013.

KeywordHydrus - 1d 模型 侧柏林 刺槐林 土壤水分 水量平衡
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8389
Collection水保所知识产出(1956---)
Corresponding Author朱元骏
Affiliation1.西北农林科技大学 资源环境学院,陕西 杨凌 712100
2.西北农林科技大学 黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西 杨凌 712100
Recommended Citation
GB/T 7714
张洛丹,张 瑜,朱元骏,等. 黄土高塬沟壑区两种乔木林土壤水分平衡的模拟[J]. 水土保持研究,2015,22(2):26-31.
APA 张洛丹,张 瑜,朱元骏,&黄明斌.(2015).黄土高塬沟壑区两种乔木林土壤水分平衡的模拟.水土保持研究,22(2),26-31.
MLA 张洛丹,et al."黄土高塬沟壑区两种乔木林土壤水分平衡的模拟".水土保持研究 22.2(2015):26-31.
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