临泽边缘绿洲区盐化草甸开垦后土壤质量演变

摘要/Abstract

摘要： 以黑河中游临泽边缘绿洲区为分析样区,研究了绿洲盐化草甸开垦后,不同开垦年限土壤的物理化学性状特征。结果表明,盐化草甸土壤中的黏粒从开垦前的9.18％增加到开垦30 a后的12.93％;除速效钾从开垦前的1315.50 mg·kg-1降至开垦30 a后的240.84 mg·kg-1外,土壤养分含量均有不同程度的增加;由于采取了工程、生物及农业措施来治理盐渍化,土壤全盐量明显降低,从开垦前的70.28 g·kg-1减至开垦30 a后的2.00 g·kg-1,减小了97.15％。土壤理化性状随开垦年限的增加而逐步改善。

关键词: 土壤质量, 演变, 盐化草甸, 开垦, 边缘绿洲

Abstract: This paper deals with changes of soil physical and chemical properties with reclamation years of oasis saline meadow in Linze County, Gansu Province, China. The results showed that soil quality of saline meadow improved obviously with increase of cultivation years. The clay content increased from 9.18％ (before cultivation) to 12.93％ (cultivated for 30 years), and soil nutrients content all increased to some extent except that available K decreased from 1 315.50 mg·kg-1 (before cultivation) to 240.84 mg·kg-1 (cultivated for 30 years). The total salt content decreased significantly from 70.28 g·kg-1 (before cultivation) to 2.00 g·kg-1 (cultivated for 30 years) because the engineering, biological and agricultural measures had been used to control salinization.

Key words: soil quality, change, saline meadow, reclamation, oasis, Linze County

中图分类号:

S156.4

王芳;肖洪浪;苏永中;范桂萍. 临泽边缘绿洲区盐化草甸开垦后土壤质量演变[J]. 中国沙漠, 2011, 31(3): 723-728.

WANG Fang;XIAO Hong-lang;SU Yong-zhong;FAN Gui-ping. Changes of Soil Quality after Reclamation in Oasis Saline Meadow in Linze, Gansu, China[J]. JOURNAL OF DESERT RESEARCH, 2011, 31(3): 723-728.

参考文献

[1]王洪杰,李宪文,史学正,等.不同土地利用方式下土壤养分的分布及其与土壤颗粒组成关系[J].水土保持学报,2003,17(2):44-50.
[2]Fu B J,Chen L D,Ma K L,et al.The relationship between land use and soil conditions in the hilly area of Loess Plateau in northern Shanxi,China[J].Catena,2000,39:69-78.
[3]Post W M,Kwon K C.Soil carbon sequestration and land use changes:Process and potential[J].Global Change Bio1ogy,2000,6:317-328.
[4]Islam K R,Weil R R.Soil quality indicator properties in mid-Atlantic soils as influenced by conservation management[J].Journal of Soil Water Conservation,2000,50:226-228.
[5]Schnitzera M,McArthurb D F E,Schultenc H R,et al.Long-term cultivation effects on the quantity and quality of organic matter in selected Canadian prairie soils[J].Geoderma,2006,130:141-156.
[6]杨玉海,陈亚宁,李卫红,等.准噶尔盆地西北缘新垦绿洲土地利用对土壤养分变化的影响[J].中国沙漠,2008,28(1):94-100.
[7]Halvorson A D,Reule C A,Anderson R L.Evaluation of management practices for converting grassland back to cropland[J].Journal of Soil Water Conservation,2000,55:57-62.
[8]Islam K R,Weil R R.Land use effects on soil quality in a tropical forest ecosystem of Bangladesh[J].Agriculture,Ecosystem and Environment,2000,79:9-16.
[9]韩书成,濮励杰,陈凤,等.长江三角洲典型地区土壤性质对土地利用变化的响应——以江苏省锡山市为例[J].土壤学报,2007,144(14):612-619.
[10]沙丽清,邱学忠,甘建民,等.云南保山西庄山地流域土地利用方式与土壤肥力关系研究[J].生态学杂志,2003,22(2):9-11.
[11]Su Y Z,Li Y L,Cui J Y,et al.Influences of continuous grazing and livestock exclusion on soil properties in a degraded sandy grassland,Inner Mongolia,northern China[J].Catena,2005,59:267-278.
[12]贾宝全.绿洲景观若干理论问题的探讨[J].干旱区地理,1996,19(3):58-65.
[13]Jia B Q,Zhang Z Q,Ci L J,et al.Oasis land-se dynamics and its influence on the oasis environment in Xinjiang,China[J].Journal of Arid Environments,2004,56:11-26.
[14]鲍士旦.土壤农化分析[M].北京:中国农业出版社,2000.
[15]苏永中,赵哈林,张铜会,等.不同强度放牧后自然恢复的沙质草地土壤性状特征[J].中国沙漠,2002,22(4):333-338.
[16]徐丽恒,王继和,李毅,等.腾格里沙漠南缘沙漠化逆转过程中的土壤物理性质变化特征[J].中国沙漠,2008,28(4):690-695.
[17]郭丁,裴世芳,俞斌华,等.阿拉善荒漠草地几种灌木对土壤有效态养分的影响[J].中国沙漠,2009,29(1):95-100.
[18]于君宝,刘景双,王金达,等.典型黑土pH值变化对营养元素有效态含量的影响研究[J].土壤通报,2003,34(5):404-408.
[19]黄昌勇.土壤学[M].北京:中国农业出版社,2000.
[20]刘全友,童依平.北方农牧交错带土地利用类型对土壤养分分布的影响[J].应用生态学报,2005,16(10):1849-1852.
[21]Lal R.Carbon Sequestration in Drylands[J].Annals of Arid Zone,2000,39(1):1-10.
[22]谭明亮,段争虎,陈小红.流沙地恢复过程中土壤特性演变研究[J].中国沙漠,2008,28(4):685-689.
[23]王艳芬,陈佐忠,Tieszen Larry T.人类活动对锡林郭勒地区主要草原土壤有机碳分布的影响[J].植物生态学报,1998,22(6):545-551.
[24]孙启祥,张建锋,Makeschin F.不同土地利用方式土壤化学性状与酶学指标分析[J].水土保持学报,2006,20(4):98-101.
[25]陈加兵,曾从盛.主成分分析、聚类分析在土地评价中的应用[J].土壤,2001,5:243-246.
[26]王恒旭,胡永华,王文成,等.主成分分析在杞县大蒜种植区土壤质量评价中的应用[J].中国农学通报,2006,22(8):297-301.