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Acta Agron Sin ›› 2008, Vol. 34 ›› Issue (12): 2210-2217.doi: 10.3724/SP.J.1006.2008.02210

• TILLAGE & CULTIVATION·PHYSIOLOGY & BIOCHEMISTRY • Previous Articles     Next Articles

Effects of Environment on Winter Rapeseed in Hexi Corridor

WANG Xue-Fang12,SUN Wan-Cang1*,LI Xiao-Ze3,WU Jun-Yan1,MA Wei-Guo1,ZENG Chao-Wu1,PU Yuan-Yuan1,YE Jian1,KANG Yan-Li1,LIU Hong-Xia1,ZENG Jun1,ZHANG Ya-Hong1   

  1. 1 Agronomy College, Gansu Agricultural University, Lanzhou 730070, Gansu; 2 Gansu Agricultural Technical College, Lanzhou 730020, Gansu; 3 Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou 730000, Gansu; 4 Gansu Vocational College of Animal Husbandry Engineering, Wuwei 733006, Gansu, China
  • Received:2008-04-09 Revised:2008-06-14 Online:2008-12-12 Published:2008-10-10
  • Contact: SUN Wan-Cang E-mail:wangcangsun@yahoo.com.cn
  • Supported by:

    王学芳(1964-),女,甘肃永登人,副教授,博士研究生,研究方向为油菜遗传育种

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Abstract:

The soil erosion has been a severe problem in recent years by the co-effect of global warming and human activities in Hexi corridor in China, where the bio-climatic zone is of arid desert. The region is also developing desertification and one of the most important source areas of sand storms and dust devils in China. Cultivation by traditional ways of spring sown is a part of reason for soil erosion in the region. It is a trend to change the cultivation system of spring sown into that of winter sown for validating the environmental effect. In the paper, we investigated coverage index, wind erosions modulus, soil water content, nutrients, enzymes, microbe quantity in different types of soil surface, with the treatments of covered with winter rapeseed, winter wheat, and wheat stubble, as well as treatment of spring seeding in Hexi corridor via trials, wind tunnel experiments, and lab work. The results showed that the soil surface coverage, soil water content, starting wind speed for the soil growing winter rapeseed were the highest (95%, 11.8%, 14 m s-1, respectively), the wind erosion modulus was the lowest, which was only 1/25 of that of spring sown. At the height of 20 cm in wind tunnel, the wind transport quantity for the soil growing winter rapeseed was 0.113 g m-2 min-1, as much as 1/206 of the treatment with spring seeding. The weight loss for organic matter, alkali-hydrolyzed N, available P and K, catalase, urease, alkaline phosphatase, invertase, and microbe number per g dry soil in the treatment with winter rapeseed were 1/6, 1/8, 1/3, 1/2.6, 1/15, 1/64, 1/11, 1/6, and 1/26 of those in the treatment with spring sown, respectively. Therefore, It was suggested that planting winter rapeseed in Hexi corridor can decrease effectively losses of organic matter, alkali-hydrolyzed N, available P and K, activities of catalase, urease, alkaline phosphatase, invertase, and microbe of soil, at the same time, can remarkably weaken the wind erosion of farmland, the supply of dust storm, and effectively protect ecological environment.

Key words: Hexi Corridor;Winter rapeseed;Wind tunnel experiment;Soil erosion

[1]Wang S-W(王绍武), Dong G-R(董光荣). Assessment of En-vironmental Evolvement in Western China (中国西部环境特征及其演变). Beijing: Science Press, 2002. pp 107, 113, 116(in Chinese)
[2]Dong Y-X(董玉祥), Liu Y-Z(刘玉璋), Liu Y-H(刘毅华). Study of Problems of Desertification (沙漠化若干问题研究). Xi'an: Xi'an Map Press, 1995. pp 123-195(in Chinese)
[3]Dong Z-B(董治宝), Wang X-M(王训民), Liu L-Y(刘连有). Wind erosion in arid and semiarid China. J Desert Res (中国沙漠), 2004, 24(5): 565-569 (in Chinese with English ab-stract)
[4]Wu Z(吴正). Blown-Sand Geomorphology and Sand-Control Engineering (风沙地貌与治沙工程). Beijing: Science Press, 2003. pp 23-107 (in Chinese)
[5]Lu Q(卢琦), Wu B(吴波). Assessment and economic value accounting of desertification disaster in China. China Popul Environ (中国人口资源与环境), 2002, 12(2): 29-33(in Chi-nese with English abstract)
[6]Qin D-H(秦大河). Assessment of Environmental Evolvement in Western China (Integrated Volume) (中国西部环境演变评估). Beijing: Science Press, 2002. p 30(in Chinese)
[7]Dong G-R(董光荣), Li C-Z(李长治), Jin J(金炯), Gao S-Y(高尚玉), Wu D(吴丹). Some results about soil wind ero-sion of wind tunnel experiment. Chin Sci Bull (科学通报), 1987, 32(4): 297-301(in Chinese)
[8]Sui Y-Z(隋玉柱), Yuan H-M(袁汉民). Study on agricultural approaches of preventing sandstorm. J Desert Res (中国沙漠), 2004, 24(5): 565-569 (in Chinese with English abstract)
[9]Yang X-C(杨秀春), Yan P(严平), Liu L-Y(刘连友). Advances and commentaries on wind erosion of soil. Agric Res Arid Areas (干旱地区农业研究), 2003, 21(4): 147-153(in Chinese with English abstract)
[10]Liu M-X(刘目兴), Liu L-Y(刘连友), Zhang X-X(张小萧), Sun B-Y(孙炳彦), Peng R-Y(彭茹燕). Effects of plowing practices on blown—sand movement near field surface of farmland. J Soil Water Conserv (水土保持学报), 2007, 21(2): 1-4(in Chinese with English abstract)
[11]Sun W-C(孙万仓), Ma W-G(马卫国), Lei J-M(雷建民), Wang H-L(王鹤龄), Liu Q(刘秦), Yang R-Y(杨仁义), Wu J-Y(吴俊艳), Wang X-F(王学芳), Ye J(叶剑), Zeng Y(曾军), Zhang Y-H(张亚宏), Kang Y-L(康艳丽), Guo X-J(郭秀娟), Wei W-H(魏文惠), Yang J(杨杰), Pu Y-Y(蒲媛媛), Zeng C-W(曾潮武), Liu H-X(刘宏霞). Studies on feasibility of expanding winter rapeseed northwards into dry-cold regions in northwest China. Sci Agric Sin (中国农业科学), 2007, 40(12): 1049-1057(in Chinese with English abstract)
[12]Dong Z-B(董治宝), Sun H-Y(孙宏义), Zhao A-G(赵爱国). WITSEG sampler: A segmented sand sampler for wind tunnel test. J Desert Res (中国沙漠), 2004, 24(5): 565-569(in Chi-nese with English abstract)
[13]Wang Y(王岩), Shen Q-R(沈其荣), Shi R-H(史瑞和), Huang D-M(黄东迈). Microbial of soil and its effects of environ-mental J Nanjing Agric Univ (南京农业大学学报), 1996, 19(4): 45-51(in Chinese with English abstract)
[14]Li Y(李昱). Microbiology of Soil (土壤微生物学). Beijing: Science Press, 1996. pp 275-301(in Chinese)
[15]Zhou K-L(周礼恺). Enzyme of Soil (土壤酶学). Beijing: Press Science, 1987. pp 167-260 (in Chinese)
[16]Jiangsu Huaiyin Nongye Xuexiao (江苏淮阴农业学校) ed. Fertility of Soil (土壤肥料学). Beijing: China Agriculture Press, 1998. pp 191-192, 204-211
[17]Dong Z-B(董志宝), Chen W-N(陈渭南), Dong G-R(董光荣). Influences of vegetation cover on the wind erosion of sandy soil. Acta Sci Circum (环境科学学报), 1996, 16(4): 442-446(in Chinese with English abstract)
[18]Shang R-Y(尚润阳), Qi Y-X(祁有祥), Zhao T-N(赵廷宁), Ding G-D(丁国栋). Field Investigation on the influence of vegetation on wind and soil erosion. Res Soil Water Conserv (水土保持研究), 2006, 4(3): 37-39(in Chinese with English abstract)
[19]Mu Q-S(慕青松), Chen X-H(陈晓辉). Relation between threshed wind erosion velocity and vegetation coverage. J Desert Res (中国沙漠), 2004, 24(5): 565-569(in Chinese with English abstract)
[20]Liu Y-Z(刘玉璋), Dong G-R(董光荣). Study of wind-tunnel experiments of the main factors affecting of soil erosion. J Desert Res (中国沙漠), 1992, 12(4): 41-44(in Chinese with English abstract)
[21]Zhang K-C(张克存), Qu J-J(屈建军), Zu R-P(俎瑞平). Re-search of the characteristics of structure of drifting sand flux and wind velocity profile over Gobi. Res Soil Water Conserv (水土保持研究), 2005, 12(1): 54-58(in Chinese with English abstract)
[22]Luo W-Y(罗万银), Dong Z-B(董治宝). The progress and prospects of research on wind erosion induced soil nutrient and carbon cycling. Prog Geogr Sci (地理科学进展), 2005, 24(4): 9-12(in Chinese with English abstract)
[23]Hu Y-F(胡云锋), Wang S-Q(王绍强), Yang F-T(杨风亭). With act on wing erosion change of soil carbon and prelimi-nary estimate in China. Geogr Res (地理研究), 2004, 23(6): 6-10(in Chinese with English abstract)
[24]Gu Z-Y(顾仲阳). Protective cultivate area over 20 million hectare (保护性耕作面积超过2000万公顷). People's Daily, on page 14, on 4th of May, 2008(in Chinese)
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