沙漠化逆转过程中不同粒组颗粒养分与全土养分的关系

摘要/Abstract

摘要： 通过野外采样和实验室分析,利用空间变化代替时间变化的手段,研究了宁夏盐池县多年围封区沙漠化逆转过程中不同粒组颗粒养分与全土养分的关系。结果表明:随着沙漠化程度的减小,中粗砂、极细砂和黏粉粒组分中有机碳和氮、磷、钾的含量及全土中有机碳和氮、磷、钾的含量均呈逐渐增大的趋势;相关分析表明,不同粒组颗粒养分与全土养分呈极显著正相关,沙漠化逆转过程中全土有机碳和氮、磷、钾养分的固存效应是与不同粒径颗粒结合的有机碳和氮、磷、钾养分共同作用的结果。通径分析表明,不同粒组颗粒养分对全土中各养分指标的影响程度和重要性不同,与粒径较大的中粗砂和极细砂结合的非保护性颗粒养分对全土养分的影响较显著。

关键词: 沙漠化逆转, 颗粒养分, 全土养分, 相关分析, 通径分析, 盐池县, 宁夏

Abstract: Based on field investigation and laboratory analysis, the values of particulate soil nutrient content and nutrient content in bulk soil were examined using the method of time-space mutual substitution. The statistic analytical methods were used to analyze the relationship between the particulate soil nutrient content and nutrient content in bulk soil during the reversal of desertification in the multiple-year enclosed area to facilitate vegetation regeneration in Yanchi County, Ningxia Hui Autonomous Region. The results showed that, with the reduction of desertification degree, there was a gradual increase trend of the contents of SOC, N, P and K in each particle fraction and of SOC, N, P and K in bulk soil. Correlation analysis revealed that there was a significant positive correlation between the particulate soil nutrient contents in all the particle fractions and the soil nutrient contents in bulk soil. The enrichment of SOC, N, P and K contents in topsoil was a result jointly affected by both the fixation and storage of nutrients in bulk soil and the integration of nutrients in soil with different grains sizes during the reversal of desertification. Path analysis showed that the effects and importance of nutrients in soil with different grains sizes to nutrients in bulk soil were different, and the effects of unprotected particulate nutrients in very fine sand and moderate-coarse sand to nutrients in bulk soil was significant.

Key words: reversal of desertification, particulate soil nutrient, soil nutrient in bulk soil, correlation analysis, path analysis, Yanchi County, Ningxia

陈小红, 段争虎, 雒天峰, 谭明亮. 沙漠化逆转过程中不同粒组颗粒养分与全土养分的关系[J]. 干旱区研究, 2013, 30(6): 992-997.

CHEN Xiao-hong, DUAN Zheng-hu, LUO Tian-feng, TAN Ming-liang. Relationship between Particulate Nutrient Content and Nutrient Content in Bulk Soil during Reversal of Desertification[J]. Arid Zone Research, 2013, 30(6): 992-997.

参考文献

[1] 吴正. 中国沙漠与治理研究50年[J]. 干旱区研究,2009,26(1):1-7.
[Wu Zheng.Deserts in China and their management over the last 50 years[J]. Arid Zone Research,2009,26(1):1-7.]
[2] 崔旺诚.沙漠化逆转过程的耗散理论应用[J]. 干旱区地理,2003,26(2):150-153.
[Cui Wangcheng.Application of theory of dissipative structure in reversion process of desertification[J]. Arid Land Geography,2003,26(2):150-153.]
[3] 王涛.我国沙漠化现状及其防治的战略与途径[J]. 自然杂志,2007,29(4):204-211.
[Wang Tao.The status of aeolian desertification and its control in China[J]. Chinese Journal of Nature,2007,29(4):204-211.]
[4] Duan Z H,Xiao H L,Dong Z B,et al.Estimate of total CO₂ output from desertified sandyland in China[J]. Atmospheric Environment,2001,35:5 915-5 921.
[5] 程淑兰,欧阳华,牛海山,等.荒漠化重建地区土壤有机碳时空动态特征:以陕西省榆林市为例[J]. 地理学报,2004,59(4):505-513.
[Cheng Shulan,Ouyang Hua,Niu Haishan,et al.Temporal-spatial dynamic analysis of soil organic carbon in inversed desertification area:A case study in Yulin County,Shaanxi Province[J]. Acta Geographica Sinica,2004,59(4):505-513.]
[6] 贾晓红,李新荣,王新平,等.流沙固定过程中土壤性质变异初步研究[J]. 水土保持学报,2003,17(4):46-50.
[Jia Xiaohong,Li Xinrong,Wang Xinping,et al.Primary study of spatial heterogeneity of soil property in processes of shifting sand fixation in southeaster Tengger Desert[J]. Journal of Soil Water Conservation,2003,17(4):46-50.]
[7] 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.
[Xu Liheng,Wang Jihe,Li Yi,et al.Variations of soil physical properties in desertification reversion process at south edge of Tengger Desert[J]. Journal of Desert Research,2008,28(4):690-695.]
[8] 齐雁冰,常庆瑞,魏欣,等.高寒地区人工植被恢复对风沙土区土壤理化性状的影响[J]. 中国农学通报,2005,21(8):404-408.
[Qi Yanbing,Chang Qingrui,Wei Xin,et al.Effect of artificial vegetation restoration on sanditificational soil characteristics in high frigid regions of China[J]. Chinese Agricultural Science Bulletin,2005,21(8):404-408.]
[9] Zuo X A,Zhao H L,Zhao X Y,et al.Spatial pattern and heterogeneity of soil properties in sand dunes under grazing and restoration in Horqin Sandy Land,northern China[J]. Soil and Tillage Research,2008,99(2):202-212.
[10] 傅华,陈亚明,周志宇,等.阿拉善荒漠草地恢复初期植被与土壤环境的变化[J]. 中国沙漠,2003,23(6):661-664.
[Fu Hua,Chen Yaming,Zhou Zhiyu,et al.Changes of vegetation and soil environment of desert grassland in the early period of restoration in Alxa,Inner Mongolia[J]. Journal of Desert Research,2003,23(6):661-664.]
[11] Li X R,Ma F Y,Xiao H L,et al.Long-term effects of revegetation on soil water content of sand dunes in arid region of northern China[J]. Journal of Arid Environments,2004,57(1):1-16.
[12] Li Y Y,Shao M A,Zheng J Y,et al.Spatial-temporal changes of soil organic carbon during vegetation recovery at Ziwuling,China[J]. Pedosphere,2005,15(5):601-610.
[13] 陈小红,段争虎,谭明亮,等.沙漠化逆转过程中土壤颗粒分形维数的变化特征:以宁夏盐池县为例[J]. 干旱区研究,2010,27(2):297-302.
[Chen Xiaohong,Duan Zhenghu,Tan Mingliang,et al.Changes in fractal dimension of soil particle during reversal of desertification:A case study in Yanchi County,Ningxia Hui Autonomous Region[J]. Arid Zone Research,2010,27(2):297-302.]
[14] 陈小红,段争虎,谭明亮,等.沙漠化逆转过程中土壤颗粒分布及其养分含量的变化特征:以宁夏盐池县为例[J]. 土壤通报,2010,41(6):1 433-1 438.
[Chen Xiaohong,Duan Zhenghu,Tan Mingliang,et al.Changes in the distribution of soil particle and the content of soil nutrients during reversal of desertification:A case study in Yanchi County,Ningxia Hui Autonomous Region[J]. Chinese Journal of Soil Science,2010,41(6):1 433-1 438.]
[15] Rosell R A,Galantini J A,Suner L G.Long-term crop rotation effect on organic carbon,nitrogen,and phosphorus in Haplustoll soil fraction[J]. Arid Soil Research and Rehabilitation,2000,4:309-315.
[16] 中国科学院南京土壤研究所.土壤理化分析[M]. 上海:上海科学技术出版社,1978.
[Institute of Soil Science,Chinese Academy of Sciences.Analysis of Soil Physico-Chemical Properties[M]. Shanghai:Science and Technology Press of Shanghai,1978.]
[17] 鲍士旦.土壤农化分析[M]. 第3版.北京:中国农业出版社,2000.
[Bao Shitan.Analysis of Soil Agrochemical Properties[M]. 3rd ed.Beijing:China Agriculture Press,2000.]
[18] 苏永中,赵哈林,文海燕.退化沙质草地开垦和封育对土壤理化性状的影响[J]. 水土保持学报,2002,16(4):5-8.
[Su Yongzhong,Zhao Halin,Wen Haiyan,et al.Cultivation and enclosure effects on soil physicochemical properties of degraded sandy grassland[J]. Journal of Soil Water Conservation,2002,16(4):5-8.]
[19] 贾晓红,李新荣,陈应武,等.植被恢复对旱区表土颗粒中有机碳和氮分布的影响[J]. 中国环境科学,2006,26(5):560-564.
[Jia Xiaohong,Li Xinrong,Chen Yinwu,et al.The influence of vegetation recovery on organic carbon and nitrogen distribution in surface soil particle of dry area[J]. China Environmental Science,2006,26(5):560-564.]
[20] Gregorich E G,Ellert B H.Light Fraction and Macro-organic Matter in Mineral Soils[M]. Florida:Lewis Publishers,Division of CRC Press,1993:397-405.
[21] Franzluebbers A J,Stuedemann J A,Schomberg H H,et al.Soil organic C and N pools under long-term pasture management in the Southern Piedomont USA[J]. Soil Biology and Biochemistry,2000,32:469-478.