[1]李龙,吴丽芝,姚云峰,等.小流域土壤有机碳含量的空间变异特征研究——以内蒙古赤峰市黄花甸子流域为例[J].水土保持研究,2013,20(05):18-23.
　LI Long,WU Li-zhi,YAO Yun-feng,et al.Study on Spatial Variations of Soil Organic Carbon in Small Watershed—Taking Huanghuadianzi Watershed as An Example[J].Research of Soil and Water Conservation,2013,20(05):18-23.
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小流域土壤有机碳含量的空间变异特征研究——以内蒙古赤峰市黄花甸子流域为例

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 20 期数: 2013年05期 页码: 18-23 栏目: 出版日期: 2013-10-28
Title:
Study on Spatial Variations of Soil Organic Carbon in Small Watershed—Taking Huanghuadianzi Watershed as An Example
作者:
李龙1, 吴丽芝1, 姚云峰1, 秦富仓2, 郭月峰1, 焦素香3, 高云波3
1. 内蒙古农业大学 生态环境学院, 呼和浩特 010018;
2. 内蒙古农业大学 林学院, 呼和浩特 010018;
3. 内蒙古赤峰市敖汉旗水利局, 内蒙古 赤峰 024300
Author(s):
LI Long1, WU Li-zhi1, YAO Yun-feng1, QIN Fu-cang2, GUO Yue-feng1, JIAO Su-xiang3, GAO Yun-bo3
1. College of Ecology and Environmental Science, Inner Mongoliaa Agricultural University, Hohhot 010018, China;
2. College of Forestry, Inner Mongolia Agricultural University, Hohhot 010018, China;
3. Water Conservancy Bureau, Chifeng, Inner Mongolia 024300, China
关键词:
土壤有机碳; 空间变异; 地形因子; 地统计
Keywords:
soil organic carbon; spatial variations; topographic; geostatistics
分类号:
S153.6
摘要:
选择内蒙古赤峰市敖汉旗黄花甸子流域为研究对象，运用地统计学和ArcGIS空间分析工具相结合的方法研究流域内土壤有机碳含量的空间变异特征以及地形因子对其的影响，旨在为半干旱区土壤碳库的研究提供参考。结果表明：研究区表层（0—20 cm）与全剖面（0—100 cm）土壤有机碳平均含量分别为7.54 g/kg和6.19 g/kg，二者块金基台比均较小，为22.77%～28.36%，说明流域土壤有机碳的空间变异主要是由结构性因素引起的，随机因素对其变异影响较小。地形因子对土壤有机碳的影响表现为：土壤有机碳含量随坡度的增加而降低；不同坡向土壤有机碳含量由高到低呈现出阴坡 > 半阴坡 > 半阳坡 > 阳坡的明显分布规律；土壤有机碳含量随海拔增加呈现先增加后降低的抛物线走势。
Abstract:
This paper selected Huanghuadianzi watershed in Aohan of Chifeng, Inner Mongolia as the research site, and the spatial variations of soil organic carbon contents were analyzed through the combination of Geo-statistical and ArcGIS in order to provide reference for the study on soil carbon pool in semi-arid area. The results showed that the overall mean of soil organic carbon content in the surface layer (0—20 cm) and the whole soil profile (0—100 cm) were 7.54 g/kg and 6.19 g/kg, respectively, and values of nugget-to-sill were 22.77%～28.36%, indicationg that spatial variability of soil organic carbon pool was mainly caused by structural factors, and the random factors had little effects. The effects of topographic factors on soil organic carbon showed that soil organic carbon content decreased with the increase of slope, soil organic carbon contents presented an obvious distribution law such as shady slope>semi-shady slope>semi-sunny slope>sunny slope, and soil organic carbon content increased at first and then decreased with a parabolic trend altitude. This study gave a scientific basis for the distribution and the system management and reasonable evaluation of soil organic carbon.

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备注/Memo

收稿日期:2013-07-12;改回日期:2013-08-24。
基金项目:内蒙古应用研究与开发计划项目“农林牧耦合生态系统固碳关键技术”（20110732）
作者简介:李龙(1989-),男,吉林省桦甸市人,硕士研究生,主要研究方向:水土保持与荒漠化防治。E-mail:lilongdhr@126.com
通讯作者:吴丽芝(1961-),女,河北省唐山市人,副教授,主要从事水土保持与荒漠化防治领域的工作。E-mail:wulizhi1950@yahoo.com.cn

更新日期/Last Update: 1900-01-01