[1]陈宏祥,胡广录*,赵晨宇,等. 黑河中游荒漠绿洲过渡带固沙植被土壤水分的分布特征[J].西北林学院学报,2017,32(6):67-73.[doi:10.3969/j.issn.1001-7461.2017.06.10]
　CHEN Hong-xiang,HU Guang-lu*,ZHAO Chen-yu,et al. Distribution Characteristics of Soil Moisture of Sand-fixing Vegetation in Desert-oasis Ecotone in the Middle Reaches of the Heihe River[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(6):67-73.[doi:10.3969/j.issn.1001-7461.2017.06.10]
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 黑河中游荒漠绿洲过渡带固沙植被土壤水分的分布特征()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第32卷
期数:
2017年第6期
页码:
67-73
栏目:
出版日期:
2017-11-30

文章信息/Info

Title:
 Distribution Characteristics of Soil Moisture of Sand-fixing Vegetation in Desert-oasis Ecotone in the Middle Reaches of the Heihe River
文章编号:
1001-7461(2017)06-0067-07
作者:
 陈宏祥; 胡广录*; 赵晨宇; 张宏伟; 王德金
 （兰州交通大学 环境与市政工程学院，甘肃 兰州 730070）
Author(s):
 CHEN Hong-xiang; HU Guang-lu*; ZHAO Chen-yu; ZHANG Hong-wei; WANG De-jin
 (School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou,Gansu 730070,China)
关键词:
 ; 荒漠—绿洲过渡带; 固沙植被; 土壤水分; 时空分布
Keywords:
 ; desert-oasis ecotone;  sand-fixing vegetation;  soil moisture;  temporal and spatial distribution
分类号:
S718.45
DOI:
10.3969/j.issn.1001-7461.2017.06.10
文献标志码:
A
摘要:
 土壤水分是干旱区固沙植被生长发育的主要限制因子，了解其时空分布特征对荒漠绿洲过渡带植被建设具有重要意义。于2015年雨季前、雨季后对甘肃临泽县荒漠-绿洲过渡带的泡泡刺(Nitraria sphaerocarpa)、沙拐枣(Calligonum mongolicum)、梭梭(Haloxylon ammodendron)3种典型固沙植被0～120 cm深度剖面的土壤水分分布特征进行研究，结果表明，1）雨季前和雨季后，泡泡刺、沙拐枣和梭梭灌丛土壤含水量随土层深度的增加基本呈上升趋势，土壤含水量均是表层低、深层高，雨季对泡泡刺、沙拐枣和梭梭灌丛土壤水分的影响主要集中在水分活跃层；2）雨季前，3种灌丛在不同水平距离处（0、1、2 m与5 m）土壤含水量的大小规律是泡刺灌丛>沙拐枣灌丛>梭梭灌丛；雨季后，3种灌丛在不同水平距离处土壤含水量无明显规律；3）雨季前和雨季后，泡泡刺灌丛和沙拐枣灌丛土壤含水量空间特征表现为灌丛边缘大于灌丛内部，梭梭灌丛表现为灌丛内部大于灌丛边缘。
Abstract:
 Soil moisture is the main limiting element for vegetation growth and development in arid area.Understanding the time-space distribution of soil moisture is important to the construction of vegetation.Before and after the rainy season in 2015,we examined the soil moisture distribution characters of the 0-120 cm profile of Nitraria sphaerocarpa,Calligonum mongolicum and Haloxylon ammodendron shrubs that were three typical plants for sand fixation in desert-oasis ecotone of Linze County,Gansu Province.The results showed that 1) before and after the rainy season,the general trends of the soil water content of three shrubs were on the rise with the increase of soil depth.The soil water contents of three shrubs all low in the surface and high in deep soil.Soil moisture was influenced by rainy season at water active layer.2) Before the rainy season,the rule of the soil moisture content of three shrubs in different horizontal distances (0,1,2,and 5 m) was in the order of N.sphaerocarpa>C.mongolicum>H.ammodendron shrubs.After the rainy season,the soil moisture content of three shrub species in different horizontal distances had no obvious regularity.3) Before the rainy season,the spatial pattern of soil moisture of N.sphaerocarpa and C.mongolicum was soil moisture in the margin of the shrub>inside the shrub,while the spatial pattern of H.ammodendron was inside the shrub>margin of the shrub.

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备注/Memo

备注/Memo:
 收稿日期：2017-03-30修回日期：2017-05-27
基金项目：国家自然科学基金（41161082、41561102）。
作者简介：陈宏祥，女，在读硕士，研究方向：环境生态。E-mail:18919035475@163.com
*通信作者：胡广录，男，博士，教授，研究方向：生态水文及生态修复。E-mail:hgl0814@163.com
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