黑河中游绿洲及绿洲—荒漠生态脆弱带 土壤含水量空间分异研究

doi:10.11821/yj2007020013

地理研究 ›› 2007, Vol. 26 ›› Issue (2): 321-327.doi: 10.11821/yj2007020013

黑河中游绿洲及绿洲—荒漠生态脆弱带土壤含水量空间分异研究

张勃^1,2, 张华¹, 张凯³, 张明军¹, 林清⁴, 鲁安新², 郭正刚⁵

1. 西北师范大学地理与环境科学学院,兰州 730070;
2. 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,兰州 730000;
3. 中国气象局兰州干旱气象研究所,兰州 730020;
4. 广西师范学院资源环境科学学院,南宁 530001;
5. 兰州大学草地农业科技学院,兰州 730020

收稿日期:2006-05-28 修回日期:2006-11-30 出版日期:2007-03-25 发布日期:2007-03-25
作者简介:张勃(1963-),男,甘肃华池人,博士,教授。主要从事干旱区资源环境教学与研究工作。 E-mail: zhangbo@nwnu.edu.cn.
基金资助:
国家自然科学基金重点项目(40235053);甘肃省中青年科技基金项目(031-A21-005);甘肃省级重点学科生态经济学资助

Study on spatial diversification of soil moisture content of oasis and oasis-desert ecotone in the middle reaches of the Heihe River

ZHANG Bo^1,2, ZHANG Hua¹, ZHANG Kai³, ZHANG Ming-jun¹, LIN Qing⁴, LU An-xin², GUO Zheng-gang⁵

1. College of Geographical and Environmental Sciences, Northwest Normal University, Lanzhou 730070, China;
2. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Envrionmental and Engineering Research Institute, CAS, Lanzhou 730000, China;
3. Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730000, China;
4. The Istitute of Resources and Environmental Science, Guangxi Normal College, Nanning 530001, China;
5. College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou 730020, China

Received:2006-05-28 Revised:2006-11-30 Online:2007-03-25 Published:2007-03-25
Supported by:
国家自然科学基金重点项目(40235053);甘肃省中青年科技基金项目(031-A21-005);甘肃省级重点学科生态经济学资助

摘要/Abstract

摘要： 以黑河中游平川绿洲和六坝绿洲为例,对绿洲及绿洲-荒漠生态过渡带土壤含水量空间分异进行了分析研究。结果表明:在无灌溉条件下绿洲及绿洲-荒漠生态过渡带的土壤含水量水平分异明显,绿洲土壤含水量高于绿洲-荒漠生态过渡带和荒漠地区土壤含水量,并出现从绿洲到绿洲-荒漠过渡带和荒漠依次递减的趋势,主要受土壤性状、土壤水分水平运动和绿洲-荒漠局地大气环流影响;绿洲活动层土壤含水量垂直分异上表现为从表层向下逐渐增加,而过渡带和荒漠区活动层土壤含水量垂直分异则是表层和底层比20~30cm处低,可能与荒漠土壤凝结水的形成与运动有关。受绿洲地下水过度开采和绿洲边缘人类活动影响,在绿洲-荒漠过渡带形成了生态裂谷,对绿洲生态系统的安全构成威胁。

关键词: 绿洲, 生态过渡带, 土壤含水量, 生态裂谷, 凝结水

Abstract: Taking Pingchuan and Liuba oases in the middle reaches of the Heihe River as examples, the spatial diversification of soil moisture content in oasis and ecotone is analysed using methods of combination of field sampling with laboratory analysis. The results show that the level diversification of soil moisture content along the oasis-desert is distinct in nonirrigated areas, the soil moisture content is higher than that of ecotone and desert. The soil moisture content shows a declining trend from the oasis to ecotone and desert, that is, the soil moisture content decreases from 20% in oasis to 2.9% in the oasis-desert ecotone. Firstly, the differences of soil moisture content are mostly influenced by soil characteristics and soil texture, secondly, influenced by microclimate conditions such as level airflow near ground of oasis-desert belts where soil can transport vapor from oasis area to near desert, and thirdly, the oasis soil moisture content likely moves levelly to desert soil. The active layer soil moisture content at soil profile in the oasis shows an increasing trend from surface layer to understratum. In the range of 0~60cm, the trend of soil moisture content increases in evidence from surface layer to understratum, and the change extent is about 3.12%~21.77%. Whereas in the ecotone and desert soil profiles, the soil moisture contents in surface layer and understratum are lower than that in the middle layer of 20~30cm, this is likely related with the formation and movement of condensation water of desert soil. It is proved that there is dry sand bed in 0~20cm that has distinct restrained effect to evaporation in substrate.It is beneficial to soil moisture content maintenance in that layer. It has important ecological meaning for sandy vegetation. Because of over extracting of groundwater in the oasis and obvious impact of human activities in the ecotone, the ecological gap has been formed, constituting a threat to the ecosystem security. The changes of soil moisture content in the oasis-desert ecological ecotone reflect the extents of water utilization of human being.

Key words: oasis, ecotone, soil moisture content, ecological gap, condensation water

张勃, 张华, 张凯, 张明军, 林清, 鲁安新, 郭正刚. 黑河中游绿洲及绿洲—荒漠生态脆弱带土壤含水量空间分异研究[J]. 地理研究, 2007, 26(2): 321-327.

ZHANG Bo, ZHANG Hua, ZHANG Kai, ZHANG Ming-jun, LIN Qing, LU An-xin, GUO Zheng-gang. Study on spatial diversification of soil moisture content of oasis and oasis-desert ecotone in the middle reaches of the Heihe River[J]. GEOGRAPHICAL RESEARCH, 2007, 26(2): 321-327.

参考文献

[1] Comegna V, Vitale C. Space-time analysis of water status in a Volcanic Vesuvian soil. Geoderma,1993,(60):135~158.

[2] Reichard K, Bacchi O S S. Hydraulic variability in space and time in a dark red latosol of the tropics. Geoderma,1993,60:159~168.

[3] 李鸿杰,杜历.土壤水、盐入渗变异特性及其相互关系的空间序列分析.土壤学报,1993,30(1):60~68.

[4] 李保国,龚元石,左强,等.农田土壤水的动态模型及其应用.北京:科学出版社,2000.63~107.

[5] 王志强, 刘宝元, 王晓兰.黄土高原半干旱区天然锦鸡儿灌丛对土壤水分的影响.地理研究,2005,24(1):113~120.

[6] 张勃.黑河绿洲资源优化配置及其区域发展研究.兰州大学博士论文,1999.78~108.

[7] Zhang Qiang, Wei Guoan, Huang Ronghui,et al. Bulk transfer coefficients of the atmospheric momentum and sensible heat over desert and Gobi in arid climate region of Northwest China. Sciences in China (Series D), 2002,45(5): 468~480.

[8] 张强,胡隐樵.干旱区的绿洲效应.自然杂志,2001,23(4):234~236.

[9] 张强,赵鸣.绿洲附近荒漠大气逆湿的外场观测和数值模拟.气象学报,1999,57(6):729~740.

[10] 张强,赵明.干旱区绿洲与荒漠相互作用下陆面特征的数值模拟.高原气象,1998,17(4):335~345.

[11] 苏从先,胡隐樵,江灏,等.河西地区热量平衡和蒸散的初步观测研究.高原气象,1987,6(3):217~224.

[12] 胡隐樵.黑河实验(HEIFE)能量平衡和水汽输送研究进展.地球科学进展,1994,9(4):30~34.

[13] 郑海雷,王介民,米谷俊颜,等.河西走廊沙漠和绿洲下垫面生态条件下能量交换若干特征.生态学报,2000,20(1):88~92.

[14] 常学向,赵爱芬,赵文智,等.黑河中游荒漠绿洲区免灌植被土壤水分状况.水土保持学报,2003,17(2):126~129.

[15] 王兵,崔向慧.民勤绿洲—荒漠过渡区水量平衡规律研究.生态学报,2004,24(2):235~240.

[16] 许月卿.土地利用对地下水位下降的影响.地理研究,2005,24(2):222~228.

[17] 宋冬梅,肖笃宁,张志成,等.石羊河下游民勤绿洲生态安全时空变化分析.中国沙漠,2004,24(3):335~342.

[18] 彭鸿嘉,傅伯杰,陈利顶,等.甘肃民勤荒漠区植被演替特征及驱动力研究.中国沙漠,2004,24(5):628~633.

[19] 何志斌,赵文智.荒漠绿洲区人工梭梭林土壤水分空间异质性的定量研究.冰川冻土,2004,26(2):207~211.

[20] 曹宇,欧阳华,肖笃宁,等.额济纳旗天然绿洲景观变化及其生态环境效应.地理研究,2005,24(1):130~139.

[21] 贾宝全,慈龙骏,蔡体久,等.绿洲——荒漠交错带环境特征初步研究.应用生态学报,2002,13(9):1104~1108.

[22] Qiu Yang, Fu Bojie, Wang Jun,et al.Spatical variability of soil moisture content and its relation to environmental indices in a semi-arid gully catchment of the Loess Plateau, China. Journal of Arid Environments, 2001, 49(4): 723~750.

[23] 王志强,王晓兰,刘保元.宁南山区不同放牧强度对天然草地土壤水分的影响.干旱区资源与环境,2005,19(2):52~55.

[24] Al-karaghouli A A, Al-kayssi A W. Influence of soil moisture content on soil solarization efficiency.Renewable Energy,2001,24(1):131~144.

[25] Mistra A, Tyler Q. Influence of soil moisture on soil solution chemistry and concentration of minerals in the calcicoles phleum phleoioles and veronica spicata grown on a limestone soil.Annals of Botany,1999,84(3):401~ 410.

[26] 张强,卫国安.邻近绿洲的荒漠表层土壤逆湿和对水分"呼吸"过程的分析.中国沙漠,2003,23(4):378~384.

[27] 李天云,郑应顺,王云.土壤地理学(第二版).北京:高等教育出版社,1983.49~62.

[28] 曹文炳,万力,周训,等.西北地区沙丘凝结水形成机制及对生态环境影响初步探讨.水文地质工程地质,2003,(2):6~10.

黑河中游绿洲及绿洲—荒漠生态脆弱带土壤含水量空间分异研究

Study on spatial diversification of soil moisture content of oasis and oasis-desert ecotone in the middle reaches of the Heihe River

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黑河中游绿洲及绿洲—荒漠生态脆弱带 土壤含水量空间分异研究

Study on spatial diversification of soil moisture content of oasis and oasis-desert ecotone in the middle reaches of the Heihe River

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黑河中游绿洲及绿洲—荒漠生态脆弱带土壤含水量空间分异研究