Characteristics of Soil Moisture in the Area Growing Haloxylon ammodendron in the Minqin Desert-Oasis Ectone

Zhang Xiaoyan; Chu Jianmin; Meng Ping; Zhang Tianyi; Gao Mingyuan; Li Delu

doi:10.7522/j.issn.1000-694X.2015.00051

Journal of Desert Research >

2015 , Vol. 35 >Issue 5: 1206 - 1216

DOI: https://doi.org/10.7522/j.issn.1000-694X.2015.00051

Characteristics of Soil Moisture in the Area Growing Haloxylon ammodendron in the Minqin Desert-Oasis Ectone

Zhang Xiaoyan ,
Chu Jianmin ,
Meng Ping ,
Zhang Tianyi ,
Gao Mingyuan ,
Li Delu

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1. Key Laboratory of Tree Breeding and Cultivation of State Forestry Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China;
2. LAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100049, China;
3. MinQin National Studies Station for Desert Steppe Ecosystem, Gansu Desert Control Research Institute, Wuwei 733000, Gansu, China

Received date: 2014-12-29

Revised date: 2015-03-24

Online published: 2015-09-20

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Abstract

The temporal and spatial variation of soil moisture (VSM)was analyzed with the method of the time domain reflectometer (TDR) in an area dominated by Haloxylon ammodendron in the Minqin Desert-Oasis Ectone. The results showed that: From August to October, the range of soil volumetric moisture around roots in sunny days were larger than that in cloudy days. The higher soil water change areas were in the 20-cm or 150-cm level points in August and October. In vertical level, the areas of higher soil water change mainly distributed in shallow soil layer in August, while in deep soil layer in October. The month of VSW higher changes was October only in the area without roots. The soil moisture in different points existed a vital difference in the three months. There were differences in the time points of soil moisture change. When snowing, the rich water phenomenon was showed in the 20-cm level point, but the VSW of the 150-cm and 250-cm level points were the lowest because of the canopy interception and evaporation. The trends of VSW showed vitally difference in level and vertical gradient aspects respectively. For instance, the site of the lowest VSW was 20 cm in August, while the VSW gradually increased with a shorter distance to the stems in September and October. Totally, the VSW in root area was lower than area without root. In the root zone, average daily VSW was affected by environment factors in an order: air temperature>humidity of the air>rainfall>net radiation>photosynthetic radiation.

Key words： desert-oasis ectone; soil moisture; meteorological factors; the time domain reflectometer (TDR)

Cite this article

Zhang Xiaoyan , Chu Jianmin , Meng Ping , Zhang Tianyi , Gao Mingyuan , Li Delu . Characteristics of Soil Moisture in the Area Growing Haloxylon ammodendron in the Minqin Desert-Oasis Ectone[J]. Journal of Desert Research, 2015 , 35(5) : 1206 -1216 . DOI: 10.7522/j.issn.1000-694X.2015.00051

References

[1] 张凯,冯起,吕永清,等.民勤绿洲荒漠土壤水分的空间分异研究[J].中国沙漠,2011,31(5):1149-1155.
[2] 初玉,杨慧玲,朱选伟,等.浑善达克沙地小叶锦鸡儿灌丛的空间异质性[J].生态学报,2005,25(12):3294-3330.
[3] 杨慧玲,曹志平,朱选伟,等.浑善达克沙地无芒雀麦(Bromus inermis)空间分布格局[J].生态学报,2007(7):2765-2773.
[4] 李新荣,贾晓红.腾格里沙漠东南缘荒漠植被格局与土壤资源的关系[J].草地学报,2005,13(S1):37-43.
[5] 李学斌,马琳,杨新国,等.荒漠草原典型植物群落枯落物生态水文功能[J].生态环境学报,2011,20(5):834-838.
[6] 楚新正,马倩,马晓飞,等.梭梭(Haloxylon ammodendron)主根周围土壤特征[J].中国沙漠,2014,34(1):170-175.
[7] 常兆丰,赵明.民勤荒漠生态研究[M].兰州:甘肃科学技术出版社,2006.
[8] Sheng Y,Zheng W H,Pei K Q,et al.Population genetic structure of a dominant desert tree, Haloxylon ammodendron (Chenopodiaceae),in the Southeast Gurbantunggut Desert detected by RAPD and ISSR markers[J].Acta Botanica Sinica,2004,46(6):675-681.
[9] 褚建民.干旱区植物的水分选择性利用研究[D].北京:中国林业科学研究院,2008.
[10] 孙鹏飞,周宏飞,李彦,等.古尔班通古特沙漠原生梭梭树干液流及耗水量[J].生态学报,2010,30(24):6901-6909.
[11] 曹晓明,陈曦,王卷乐,等.古尔班通古特沙漠南缘非灌溉条件下梭梭(Haloxylon ammodendron)蒸腾耗水特征[J].干旱区地理,2013,36(2):292-302.
[12] 李从娟,雷加强,徐新文,等.树干径流对梭梭“肥岛”和“盐岛”效应的作用机制[J].生态学报,2012,32(15):4819-4826.
[13] 任雪,褚贵新,宋日权,等.准噶尔盆地南缘绿洲-荒漠过渡带梭梭“肥岛”效应特征[J].土壤通报,2010,41(1):100-104.
[14] 徐先英,孙保平,丁国栋,等.干旱荒漠区典型固沙灌木液流动态变化及其对环境因子的响应[J].生态学报,2008,28(3):895-905.
[15] Zheng C L, Wang Q.Water-use response to climate factors at whole tree and branch scale for a dominant desert species in central Asia[J].Ecohydrol,2014,7,56-63..
[16] Yang Q Y,Zhao W Z,Liu B.et al.Physiological responses of Haloxylon ammodendron to rainfall pulses in temperate desert regions,Northwestern China[J].Trees,2014,28(3):709-722.
[17] 陈书飞,何新林,汪宗飞,等.咸水滴灌条件下梭梭和柽柳的土壤水盐运移特征[J].中国农村水利水电,2010(11):61-65.
[18] 陈书飞.咸水灌溉对胡杨和梭梭水分生理生长及土壤水盐运移规律的研究[D].新疆石河子:石河子大学,2012.
[19] 韩永伟,王堃,张汝民,等.吉兰泰地区退化梭梭蒸腾生态生理学特性[J].草地学报,2002,10(1):40-44.
[20] 马海艳,龚家栋,王根绪,等.干旱区不同荒漠植被土壤水分的时空变化特征分析[J].水土保持研究,2005,12(06):235-238.
[21] Li J,Zhao C Y,Song Y J,et al.Spatial patterns of desert annuals in relation to shrub effects on soil moisture[J].Journal of Vegetation Science,2010,21(2):221-232.
[22] Granier A.Sap flow measurements in Douglas-fir tree trunks by means of a new thermal method[J].Annals of Forest Science,1987,44:1-14.
[23] 郑睿,康绍忠,佟玲,等.不同天气条件下荒漠绿洲区酿酒葡萄植株耗水规律[J].农业工程学报,2012,28(20):99-107.
[24] 康绍忠,梁银丽,蔡焕杰,等.旱区水-土-作物系及其最优调控原理[M].北京:中国农业出版社,1998:84-90.
[25] 王新平,李新荣,张景光.沙坡头人工植被固沙区天然降水的入渗和分配研究[J].中国沙漠,2002,22(6):534-540.
[26] 杨艳凤,周宏飞,徐利岗.古尔班通古特沙漠原生梭梭根区土壤水分变化特征[J].应用生态学报,2011,22(7):1711-1716.
[27] Li X Y,Liu L Y,Gao S Y,et al.Stem flow in three shrubs and its effect on soil water enhancement in semiarid loess region of China[J].Agricultural and Forest Meteorology,2008,148(10):1501-1507.
[28] 翟翠霞,马健,李彦.古尔班通古特沙漠风沙土土壤蒸发特征[J].干旱区地理,2007,30(6):805-811.

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