Combined Effects of Straw Mulch Cover & Organic Matter Input on the Erodibility of Purple Soil in Sloping Farmland

doi:10.3969/j.issn.1000-6362.2016.03.004

Abstract

Abstract:

Based on the data from rainfall and field runoff plots in 2014, a field experiment was conducted in Sichuan to evaluate the runoff, sediment characteristics and soil erodibility of purple soil on the sloping farmland soil as affected by the straw mulch cover and organic matter input. There were four treatments as organic matter input (OM), straw mulch (SW), combined treatment of organic matter input with straw mulch treatment (OM+SW), and control group(CK). The sediment yield in unit area runoff plots by unit individual runoff depth (K_w) was used to describe the soil erodibility. The results showed that there was a positive linear correlation between runoff depth and sediment yield. More importantly, straw mulch and organic matter input can significantly reduce surface runoff in sloping farmland. Besides, the effects of four treatments in reducing surface runoff was ranked as: OM+SW＞SW＞OM＞CK. Straw mulch and organic matter input can notably decrease unit sediment yields caused by runoff and thus reduce soil erodibility. The contribution of organic matter treatment (OM), straw mulch treatment(SW) and organic matter+straw mulch(OM+SW) treatment on the reduction to soil erodibility were on average 22.30%, 29.76% and 35.04%, separately. Additionally, the subtractive effects of straw mulch treatment (SW) on soil erodibility were more obvious than organic input treatment (OM), but the differences were not significant. Therefore, it is suggested to use organic matter input together with straw mulch as a practical tillage way to eliminate soil erodibility for this region.

Key words: Soil erodibility, Purple soil, Organic matter, Straw mulch, Unit individual runoff depth

HUANG Xin-jun, CHEN Shang-hong, LIU Ding-hui, ZHANG Qing-wen. Combined Effects of Straw Mulch Cover & Organic Matter Input on the Erodibility of Purple Soil in Sloping Farmland[J]. Chinese Journal of Agrometeorology, 2016, 37(03): 289-296.

References

[1]刘宝元,张科利,焦菊英.土壤可蚀性及其在侵蚀预报中的应用[J].自然资源报,1999,14(4):345.

Liu B Y,Zhang K L,Jiao J Y.Soil erodibility and its use in soil erosion prediction model[J].Journal of Natural Resources, 1999,14(4):345.(in Chinese)

[2]王彬.土壤可蚀性动态变化机制与土壤可蚀性估算模型[D].杨凌:西北农林科技大学,2013.

Wang B.Dynamic mechanism of soil erodibility and soil erodibility calculation model[D].Yangling:Northwest A&F University,2013.(in Chinese)

[3]郑子成,张锡洲,李廷轩,等.玉米生长期土壤抗蚀性特征及其影响因素分析[J].农业工程学报,2014,30(4):100-108.

Zheng Z C,Zhang X Z,Li T X,et al.Soil anti-erodibility and analysis of its influencing factors during growing stages of maize[J].Transactions of the CSAE,2014,30(4):100-108.(in Chinese)

[4]Lei T W,Zhang Q W,YaoC M,et al.A rational method for erodibility and critical shear stress of eroding Rill[J]. Geoderma,2008,144(3-4):628-633.

[5]Huson N.Soil conservation[M].AMES:Iowa State University Press,1995.

[6]王彬,郑粉莉.水蚀过程的土壤可蚀性研究述评[J].水土保持研究,2013,20(1):277-286.

Wang B,Zheng F L.Soil erodibility for water erosion:a Review[J].Research of Soil and Water Conservation,2013, 20(1):277-286.(in Chinese)

[7]Knapen A,Poesen J,Govers G,et al.Resistance of soils to concentrated flow erosion:a review[J].Earth-Science Reviews, 2007,80:75-109.

[8]Cerdà A.Soil water erosion on road embankments in eastern Spain[J].The Science of the Total Environment,2007,378: 151-155.

[9]King K W,Flanagan D C,Norton L D,et al.Rill erodibility parameters influenced by long-term management practices[J]. Transactions of the ASAE,1995,38 (1):159-164.

[10]崔明,蔡强国,范昊明.典型黑土区小流域秸秆还田技术在土壤改良中的应用[J].中国水土保持科学,2006,4(5):56-59.

Cui M,Cai Q G,Fan H M.Application of returning straw to field to improve the black soil quality in small watershed in black soil region of China[J].Science of Soil and Water Conservation,2006,4(5):56-59.(in Chinese)

[11]李新举,张志国.秸秆覆盖与秸秆翻压还田效果比较[J].国土自然资源研究,1999,(1):43-45.

Li X J,Zhang Z G.Comparison of the effects of mulching straw and soil-returning straw[J].Territory & Natural Resources Study,1999,(1):43-45.(in Chinese)

[12]郑粉莉,唐克丽,周佩华.坡耕地细沟侵蚀的发生、发展和防治途径的探讨[J].水土保持学报,1987,1(1): 36-48.

Zheng F L,Tang K L,Zhou P H.Approach to the genesis and development of rill erosion on slope land and the way to control[J].Journal of Soil and Water Conservation,1987,1(1): 36-48.(in Chinese)

[13]罗贤安,贺菊雅.从黄土地区几种土壤有机质含量的统计分析评价土壤侵蚀的危害[J].水土保持通报,1982,(1):20-23.

Luo X A,He J Y.Quantify the effect of soil erosion by Statistical analysis method from several soil organic matter content in Loess area[J].Journal of Soil and Water Conservation, 1982,(1):20-23.(in Chinese)

[14]Fullen M A.Soil organic matter and erosion processes on arable loamy sand soils in the West Midlands of England[J]. Soil Technology,1991,4(1):19-31.

[15]Alliaume F,Rossing W A H,Tittonell P,et al.Reduced tillage and cover crops improve water capture and reduce erosion of fine textured soils in raised bed tomato systems[J]. Agriculture, Ecosystems and Environment ,2014,183: 127-137.

[16]Berg R D.Straw residue to control furrow erosion on sloping, irrigated cropland[J].Journal of Soil and Water Conservation, 1984,39(1):58-60.

[17]赵君范,黄高宝,辛平,等.保护性耕作对地表径流及土壤侵蚀的影响[J].水土保持通报,2007,27(6):16-19.

Zhao J F,Huang G B,Xin P,et al.Runoff and quantity of soil erosion under conservation tillage system by simulated rainfall[J].Bulletin of Soil and Water Conservation,2007, 27(6):16-19.(in Chinese)

[18]王安,郝明德,臧逸飞,等.秸秆覆盖和留茬的田间水土保持效应[J].水土保持研究,2013,20(1): 48-51.

Wang A,Hao M D,Zang Y F,et al.Effects of straw mulching and stubble on soil and water conservation with corns planted[J]. Research of Water Conservation,2013,20(1): 48-51.(in Chinese)

[19]Van L M W,Saxton K E.Slope steepness and incorporated residue effects on rill erosion[J].Transactions of the ASAE,1983,26(6):1738-1743.

[20]Guerra A.The effect of organic matter content on soil erosion in simulated rainfall experiments in W. Sussex,UK[J].Soil Use and Management,1994,10(2):60-64.

[21]张孝存,郑粉莉,王彬,等.不同开垦年限黑土区坡耕地土壤团聚体稳定性与有机质关系[J].陕西师范大学学报(自然科学版),2011,39(5):90-95.

Zhang X C,Zheng F L,Wang B,et al.The relationships between aggregate water stability and soil organic matter of slope land with different reclamation years in black soil region[J].Journal of Shaanxi Normal University(Natural Science Edition),2011,39(5):90-95.(in Chinese)

[22]Jankauskas B,Jankauskien? G,Fullen M A.Relationships between soil organic matter content and soil erosion severity in Albeluvisols of the ?emai?iai Uplands[J].Ekologija, 2007,53(1):21-28.

[23]吴普特,周佩华,郑世清.黄土丘陵沟壑区(Ш)土壤抗冲性研究:以天水站为例[J].水土保持学报,1993,7(3):19-36.

Wu P T,Zhou P H,Zheng S Q.Soil anti-scourability research in the third region of hill and gully on Loess Plateau-Taking Tianshui Soil and Water Conservation station as an example[J].Journal of Soil and Water Conservation,1993, 7(3):19-36.(in Chinese)

[24]潘成忠.坡面流水力学特性及其对草地拦沙的响应机制[D].西安:中国科学院水利部水土保持研究所,2007.

Pan C Z.Slopeland flow hydraulics and its response to grassland trapping sediment[D].Xi^,an:Institute of Soil and Water Conservation,CAS&MWR,2007.(in Chinese)

[25]Prats S A,dos Santos M,Martinho A,et al.Polyacrylamide application versus forest residue mulching for reducing post-fire runoff and soil erosion[J].Science of the Total Environment,2014,468:464-474.

[26]胡实,彭娜,谢小立,等.农田秸秆覆盖保墒研究[J].中国农业气象,2007,28(1):49-53.

Hu S,Peng N,Xie X L,et al.A review:study on water conservation in cropland with stalk cover[J].Chinese Journal of Agrometeorology,2007,28(1):49-53.(in Chinese)

[27]Won C H,Choi Y H,Shin M H,et al.Effects of rice straw mats on runoff and sediment discharge in a laboratory rainfall simulation[J].Geoderma,2012,189(6):164-169.

[28]王兆伟,郝卫平,龚道枝,等.秸秆覆盖量对决农田土壤水分和温度动态的影响[J].中国农业气象,2010,31(2):244-250.

Wang Z W,Hao W P,Gong D Z,et al.Effect of straw mulch amount on dynamic changes of soil moisture and temperature in farmland[J].Chinese Journal of Agrometeorology,2010, 31(2): 244-250.(in Chinese)

[29]徐泰平,朱波,汪涛,等.秸秆还田对紫色土坡耕地养分流失的影响[J].水土保持学报,2006,20(1):31-36.

Xu T P,Zhu B,Wang T,et al.Effects of returned straw on nutrient loss from slope cropland of purple soil[J].Journal of Soil and Water Conservation,2006,20(1):31-36.(in Chinese)

[30]王晓燕,高焕文,李洪文,等.保护性耕作对农田地表径流与土壤水蚀影响研究[J].农业工程学报,2000,16(3):66-69.

Wang X Y,Gao H W,Li H W,et al.Experimental study on runoff and erosion under conservative tillage[J].Transactions of the CSAE,2000,16(3):66-69.(in Chinese)