| 黄土高原植被演替过程中土壤水分亏缺 |
| 张永旺; 万珊珊; 王俊; 魏瑶瑶; 屈亚潭
|
| 2020
|
发表期刊 | 水土保持研究
|
卷号 | 27期号:5页码:120-132 |
摘要 | 土壤水分亏缺在黄土高原植被恢复过程中表现较为严重,这对黄土高原的生态恢复与植被建设造成了很大的障碍。
只有充分了解黄土高原的土壤水分特征及其亏缺状况,才能为植被恢复提供参考。对陕北黄土高原典型次生林地和草地的
土壤水分进行了测量,对雨季和非雨季的山杨、沙棘、辽东栎和撂荒地土壤水分亏缺特征进行了定量评价。结果显示: 3
种林地 0 — 500cm 土层的土壤含水量与储水量随着土层深度的增加都呈先增加后缓慢下降,撂荒地随着土层深度增
加呈增加趋势,且其含水量与储水量是最高的。不同恢复植被的土壤含水量与储水量大小顺序为:撂荒地 > 沙棘 >
山杨 > 辽东栎。与撂荒地相比, 3种林地的相对亏缺指数顺序为:辽东栎 > 山杨 > 沙棘,雨季的的土壤亏缺状况较非
雨季严重,植被类型、土壤质地和土层深度是影响植被演替过程中土壤水分亏缺状况的关键因子。 |
其他摘要 | Soil water deficit is serious during the vegetation restoration on the Loess Plateau , which causes
great obstacle to ecological restoration and vegetation construction on the Loess Plateau.Only
by fully
under -
standing the characteristics of soil moisture and its deficiency
on the Loess Plateau can provide a theoretical
basis for vegetation restoration.In this study , soil water contents of typical secondary forest and grassland on
the Loess Plateau were measured , and soil water storage capacity and soil water deficit on the Populus
davidiana Dode , Hippophae rhamnoides ( Linn.
), Quercus
liaotungensis Koidz woodland and layland in
rainy
and non -
rainy seasons were quantitatively
evaluated.The results showed that the soil moisture contents
and water storage capacities in the 0 — 500cm soil layer of the three kinds of forestlands increased first and
then declined slowly with the increase of soil depth , and those at the layland increased with the increase of
soil depth , and the water content and water storage capacity were the highest ; The soil water content and
water storage of different restored vegetation decreased in the order : layland> Hippophae rhamnoides
( Linn. ) > Populus
davidiana Dode> Quercus liaotungensis Koidz woodland ; compared with the layland ,
the relative deficit index of three kinds of woodlands decreased in the order : Quercus liaotungensis Koidz>
Populus davidiana Dode> Hippophae rhamnoides ( Linn.
) woodland , the soil deficit in the rainy season
was more serious than that in the non -
rainy
season ; vegetation type , soil texture and soil depth are the key
factors affecting soil water deficit during
the vegetation succession. |
关键词 | 土壤水分亏缺
次生林地
植被类型
黄土高原
|
收录类别 | 中文核心期刊要目总览
|
语种 | 中文
|
文献类型 | 期刊论文
|
条目标识符 | sbir.nwafu.edu.cn/handle/361005/10003
|
专题 | 水保所知识产出(1956---)
|
作者单位 | 延安大学 生命科学学院
|
推荐引用方式 GB/T 7714 |
张永旺,万珊珊,王俊,等. 黄土高原植被演替过程中土壤水分亏缺[J]. 水土保持研究,2020,27(5):120-132.
|
APA |
张永旺,万珊珊,王俊,魏瑶瑶,&屈亚潭.(2020).黄土高原植被演替过程中土壤水分亏缺.水土保持研究,27(5),120-132.
|
MLA |
张永旺,et al."黄土高原植被演替过程中土壤水分亏缺".水土保持研究 27.5(2020):120-132.
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文件名:
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黄土高原植被演替过程中土壤水分亏缺_张永旺.pdf
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Adobe PDF
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