乌什县植棉田土壤养分空间分级特征分析
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摘要
运用统计学和地统计学方法对乌什县植棉地表层土壤养分空间变异特征进行分析。研究表明,(1)土壤pH均值为7.8,显示偏碱性;除缓效钾含量平均值大于500 mg/kg,分级为极丰富之外,其余元素的含量以适宜或最适宜为主。(2)采样点之间pH的差异最小,有效磷的含量差异较大;在各要素之间存在正相关及空间自相关,但关系不太密切。(3)在采样区内有机质含量均匀,含量级别为适宜;全碳含量在北部较低,其余大部分区含量在0.750～1.000 g/kg、含量级别为适宜;碱解氮含量在北部缺乏,在南部适宜;有效磷含量在10.000～20.000 mg/kg,含量级别为最适宜;缓效钾含量在东部较低,在北部丰富,在中部、西南部极丰富;采样区西南和东北部速效钾含量在74.441～100.000 mg/kg,是属于含量级别适宜区,在北部、南部、东南部和中部含量级别为最适宜。
Using statistical and geostatistical methods analyzed spatial variability of surface soil nutrients in cotton planting soil in Wushi county. The research showed:(1)mean soil pH was 7.8,showing slight alkaline soil feature. Except that the slow potassium content average value was greater than 500 mg/kg,grading was very rich and other elements content grading was to the appropriate or most appropriate.(2)There was minimal difference in pH and large difference in available phosphorus content between sampling points;There was a positive correlation and spatial autocorrelation between the elements,but not very close.(3)organic content was same in the entire sampling area,content level was appropriate;Total carbon content was lower in the north part,other area total carbon content was 0.750～1.000 g/kg,the level of content was appropriate; Alkaline nitrogen content was lacking in the north,suitable in the south; Available phosphorus content was 10.000 ～20.000 mg/kg,the content level was the most appropriate; Slow potassium content was lower in the eastern part,rich in the northern part,very rich in the central and southwest part. The available potassium content was ranged 74.441 ～100.000 mg/kg in the southwest and northeast part of the sampling area and content level was suitable,the levels were the most appropriate in northern,southern,southeastern and central part.
Using statistical and geostatistical methods analyzed spatial variability of surface soil nutrients in cotton planting soil in Wushi county. The research showed:(1)mean soil pH was 7.8,showing slight alkaline soil feature. Except that the slow potassium content average value was greater than 500 mg/kg,grading was very rich and other elements content grading was to the appropriate or most appropriate.(2)There was minimal difference in pH and large difference in available phosphorus content between sampling points;There was a positive correlation and spatial autocorrelation between the elements,but not very close.(3)organic content was same in the entire sampling area,content level was appropriate;Total carbon content was lower in the north part,other area total carbon content was 0.750～1.000 g/kg,the level of content was appropriate; Alkaline nitrogen content was lacking in the north,suitable in the south; Available phosphorus content was 10.000 ～20.000 mg/kg,the content level was the most appropriate; Slow potassium content was lower in the eastern part,rich in the northern part,very rich in the central and southwest part. The available potassium content was ranged 74.441 ～100.000 mg/kg in the southwest and northeast part of the sampling area and content level was suitable,the levels were the most appropriate in northern,southern,southeastern and central part.
引文
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[3]张伟,刘淑娟,叶莹莹,等.典型喀斯特林地土壤养分空间变异的影响因素[J].农业工程学报,2013,29(1):93-101.
[4]黄元仿,周志宇,苑小勇,等.干旱荒漠区土壤有机质空间变异特征[J].生态学报,2004,24(12):2776-2781.
[5]于婧.基于GIS和地统计学方法的土壤养分空间变异及应用研究[D].武汉:华中农业大学,2007.
[6]黄昌勇.土壤学[M].北京:中国农业出版社,2000.
[7]李放,魏建林,徐洪明,等.东阿县县域耕地土壤养分空间分布状况[J].中国农学通报,2016,32(36):125-135.
[8] HAEFELE S M,WOPEREIS M C S. Spatial variability of indigenous supplies for N,P and K and its impact on fertilizer strategies for ir-rigated rice in West Africa[J].Plant and Soil,2005,270:57-72.
[9]李亮亮,依艳丽,凌国鑫,等.地统计学在土壤空间变异研究中的应用[J].土壤通报,2005,36(2):265-268.
[10]雷咏雯,危常州,李俊华,等.不同尺度下土壤养分空间变异特征的研究[J].土壤,2004,36(4):376-381.
[11]刘付程,史学正,潘贤章,等.太湖流域典型地区土壤磷素含量的空间变异特征[J].地理科学,2003,23(1):77-81.
[12]新疆维吾尔自治区统计局.2017新疆统计年鉴[M].北京:中国统计出版社,2017.
[13]阿依图尔荪·哈力穆拉提.渭干河-库车河三角洲绿洲棉田表层土壤的理化特征研究[D].乌鲁木齐:新疆师范大学,2014.
[14]中国土壤数据库.第二次土壤普查[DB/OL].http://www.soil.csdb.cn.
[15]全国土壤普查办公室.中国土壤普查技术[M].北京:北京农业出版社,1992.
[16]熊丹丹,张永福.新疆乌什县土地利用规划环境影响的生态安全评价[J].安徽农业科学报,2013,41(32):12746-12749.
[17]黄绍文,金继运,杨俐苹,等.县级区域粮田土壤养分空间变异与分区管理技术研究[J].土壤学报,2003,40(1):79-88.
[18]张仁铎.空间变异理论及应用[M].北京:科学出版社,2006.
[19]谭万能,李志安,邹碧.地统计学方法在土壤学中的应用[J].热带地理,2005,25(4):307-311.
[20]王政权.地统计学及在生态学中的应用[M].北京:科学出版社,1999.
[21]罗新宁,朱友娟,张宏勇,等.塔里木绿洲种植制度对棉田土壤养分性状的影响[J].干旱地区农业研究,2012,30(3):114-129.
[22]陈小勇,林鹏.我国红树植物分布的空间自相关分析[J].华东师范大学学报(自然科学版),2000(3):104-109.
[23]孟斌,王劲峰,张文忠,等.基于空间分析方法的中国区域差异研究[J].地理科学,2005,25(4):393-400.
[24]徐建华.地理建模方法[M].北京:科学出版社,2010.