[1]史丽丽,赵成章,高福元,等.基于地统计学的甘肃臭草群落土壤水分空间异质性[J].山地学报,2011,(06):649.
　SHI Lili,ZHAO Chengzhang,GAO Fuyuan,et al.Spatial Variability of Soil Mositure of Melica przewalskyi Community Based on Geostatistics[J].Mountain Research,2011,(06):649.
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基于地统计学的甘肃臭草群落土壤水分空间异质性()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2011年06期
页码:
649
栏目:
山地学报
出版日期:
2011-01-01

文章信息/Info

Title:
Spatial Variability of Soil Mositure of Melica przewalskyi Community Based on Geostatistics
作者:
史丽丽;赵成章;高福元;张军霞;张静;
1.西北师范大学地理与环境科学学院，甘肃 兰州 730070
Author(s):
SHI Lili; ZHAO Chengzhang; GAO Fuyuan; ZHANG Jiunxia; ZHANG Jin
College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China
关键词:
甘肃臭草; 土壤水分; 地统计学; 半变异函数
Keywords:
Melica przewalskyi;  soil mositure;  geostatistics;  emivariogram
分类号:
Q145+.2，S812
文献标志码:
A
摘要:
土壤水分是植被格局形成和演变的主要因素,土壤水分的空间异质性对于认识干旱区草原植物对环境的响应机制具有重要意义。应用地统计学方法,对祁连山北坡甘肃臭草(Melica przewalskyi)退化草地土壤表层含水量的变异性进行研究。结果表明,臭草型退化草地浅层(0～30 cm)土壤水分符合正态分布,土壤含水量沿垂直方向逐渐增大,介于9.56%～11.21%。各层土壤水分的变异系数分别为12.97%(0～10 cm)、8.8%(10～20 cm)和14.09%(20～30 cm),均属弱变异;0～30 cm土壤含水量具有高度的空间异质性,其中34.92%～42.71%的空间异质性是由空间自相关部分...
Abstract:
Soil moisture is the main factors of vegetation pattern formation and development. The spatial heterogeneity of soil moisture have important meaning of understanding the response mechanism of plant environment In arid and semiarid regions.In this paper, the spatial variability of soil moisture on the north slope of Qilian mountain was investigated based on geostatistical theory and methods. The research was carried out in an degraded grassland of Melica przewalskyi community. The results indicated that the distribution of surface soil moisture was normal distribution. The soil moisture at the 0~30 cm soil layer increased with the increase of depth was, on average, 956%~1121.The coefficient of variation of the surface soil mositure was 1297%(0~10 cm), 88%（10~20 cm）and1409% (20~30 cm), all belong to a weak variation. There was high degree of spatial heterogeneity of surface soil moisture. Among them 3492%~4271% spatial heterogeneity is caused by the spatial autocorrelation part, and the distance of spatial autocorrelation in vegetation coverage was found within distance from 1687~6914 m. Soil mositure content of the layer 0~10 cm is affected by coverage. In the 10~30 cm,soil mositure content is affected by root.

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　CAI Qingkong,JIANG Jinbao,CUI Ximin,et al.Influences of Environmental Factors on Spatial Heterogeneity of Soil Moisture——A Case Study in Huairou District of Beijing[J].Mountain Research,2013,(06):294.
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备注/Memo

备注/Memo:
收稿日期(Received date)：2011-06-25；改回日期(Accepted)：2011-10-07。
基金项目（Foundation item）：国家自然科学
基金项目（No.40971039）；甘肃省科技支撑计划项目（1011FKCA157）。\[Supported by the National Nature Science Foundation of China (No. 40971039), Technology support projects of Gansu province(1011FKCA157).\]
作者简介（Biography）：史丽丽（1987-），女，甘肃天水人，硕士研究生，从事生物地理学研究。\[Shi Lili(1987-), female, born in Tianshui of Gansu\], Graduate student, major in biogeography. \] *
通讯作者（Author for correspondence）：Zhao Chengzhang.E-mail: zhaocz@nwnu.edu.cn
更新日期/Last Update: 1900-01-01