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JOURNAL OF DESERT RESEARCH  2013, Vol. 33 Issue (3): 782-787    DOI: 10.7522/j.issn.1000-694X.2013.00090
Biology and Soil     
Soil Nutrient Space Heterogeneity in Yanchi of Ningxia Hui Autonomous Region, China
LIU Li-dan, XIE Ying-zhong, QIU Kai-yang, SHI xiang-feng
School of Agriculture, Ningxia University, Yinchuan 750021, China
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Abstract  

Using classical statistical and geo-statistical methods such as semivariogram, Kriging interpolation, and spatial distribution maps, we studied the soil nutrient space heterogeneity of Lespedeza potaninii, Lespedeza potaninii-Artemisia ordosica, and Artemisia ordosica community in Yanchi of Ningxia Hui Autonomous Region, which is in arid and semiarid area of China. The results showed that: The autocorrelation scale of soil organic matter, total nitrogen, rapidly-available phosphorus were 67 m, 519 m and 143 m, respectively; Structure variance (C/(Co+C)) were 0.558, 0.882 and 0.514 respectively. The space heterogeneity of total nitrogen content in 0-5 cm soil was mainly influenced by the structural factors, while the organic matter and the available phosphorus contents were influenced by random factors and structural factors. The spatial distribution maps indicated that the organic matter and total nitrogen content in 0-5 cm soil were both the highest in the Lespedeza potaninii community, tapered off in the Lespedeza potaninii-Artemisia ordosica community, and then increased in the Artemisia ordosica community, whereas the available phosphorus content was the highest in the Lespedeza potaninii community and the lowest in the Artemisia ordosica community. In conclusion, the gradual degeneration of the grassland vegetation and the soil desertification had significant influence on the surface soil nutrient distribution pattern when the plant communities converted from Lespedeza potaninii to Artemisia ordosica

Key words:  soil nutrient      space heterogeneity      Yanchi County     
Received:  27 April 2012      Published:  27 June 2012
ZTFLH:  S714  

Cite this article: 

LIU Li-dan, XIE Ying-zhong, QIU Kai-yang, SHI xiang-feng. Soil Nutrient Space Heterogeneity in Yanchi of Ningxia Hui Autonomous Region, China. JOURNAL OF DESERT RESEARCH, 2013, 33(3): 782-787.

URL: 

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00090     OR     http://www.desert.ac.cn/EN/Y2013/V33/I3/782

[1]陈文波,肖笃宁,李秀珍.景观空间分析的特征和主要内容[J].生态学报,2002,22(7):1135-1142.

[2]Robertson G P,Huston M A,Evans F C,et al.Spatial variability in a successional plant community:Patterns of nitrogen availability[J].Ecology,1993,69(5):1517-1524.

[3]张凤杰,乌云娜,杨宝灵,等.呼伦贝尔草原土壤养分与植物群落数量特征的空间异质性[J].西北农业学报,2009,18(2):173-177.

[4]陈防,刘冬碧,熊桂云,等.中亚热带两种水稻土土壤养分空间变异的对比研究[J].土壤学报,2006,43(4):688-692.

[5]秦鱼生,涂仕华,冯文强.成都平原水旱轮作种植下土壤养分特性空间变异研究[J].土壤,2008,45(2):355-359.

[6]金海龙,白祥,满忠龙.新疆艾比湖湿地自然保护区土壤空间异质性研究[J].干旱区资源与环境,2010,24(2):150-157.

[7]毋兆鹏,金海龙.博尔塔拉河、精河流域绿洲土壤空间异质性研究[J].中国沙漠,2010,30(1):120-127.

[8]郭旭东,傅伯杰,陈立顶,等.河北省遵化平原土壤养分的时空变异特征——变异函数与Kriging插值分析[J].地理学报,2000,55(5):555-566.

[9]董国涛,罗格平,许文强,等.三工河流域下游绿洲土壤微量元素有效含量空间变异特征[J].中国沙漠,2010,30(4):862-869.

[10]杨海峰,钱亦兵,蒋超,等.古尔班通古特沙漠南缘主要土壤化学特征的空间异质性[J].中国沙漠,2010,30(2):319-325.

[11]王玉刚,肖笃宁,李彦,等.三工河流域绿洲土壤有机碳的空间分布[J].中国沙漠,2011,31(1):101-107.

[12]郭继勋,祝廷成.羊草草原土壤微生物的数量和生物量[J].生态学报,1997,17(1):78-82.

[13]张晓美,朴春根,李姝江,等.鄂尔多斯南部不同沙地土壤养分含量、酶活性与微生物数量变化规律及其相关性[J].四川农业大学学报,2011,29(3):366-373.

[14]时项锋,许冬梅,邱开阳,等.游动分割窗技术在景观界面影响域判定中的应用——以牛枝子-黑沙蒿群落界面为例[J].草业科学,2010,27(4):30-33.

[15]Lechowicz M J.Caldwell M M.The ecology and genetics of fitness in forest plants.Microspatial heterogeneity of the edaphic environment[J].Journal of Ecology,1991,79(5):687-696.

[16]Robertson G P.Geostatiscs in ecology:Interpolating with known variance[J].Ecology,1987,68(3):744-748.

[17]Schlesinger W H,Reynolds J F,Cunningham G L.Biological feedbacks in global desertification[J].Science,1990,247:1043-1048.

[18]Hook P B,Burke I C,Lanenroth W R.Heterogeneity in soil N and C associated with individual plant sand openings in North American short grass steppe[J].Plant and Soil,1991,138(2):247-256.

[19]郑田,李建贵,李卫红,等.塔里木河下游绿洲荒漠过渡带土壤异质性及对植物群落的影响[J].中国沙漠,2010,30(1):128-134.

[20]Schlesinger W H,Pilmanis A M.Plant-soil interactions in desert[J].Biogeochemistry,1998,42:169-187.

[21]Pickup G.Desertification and climate change:The Australian perspective[J].Climate Research,2003,11:51-63.

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