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农田保护措施防治沙尘暴效果及土壤风蚀模型的研究
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摘要
土壤风蚀沙化现象已成为中国北方农牧交错区农业可持续发展最为突出的问题,并在沙尘暴中扮演着重要的角色。近年来,沙尘暴发生频率居高不下,使土壤风蚀受到土壤环保专家的一致重视。
     本文选取位于河北北部的张北、怀来、丰宁风蚀沙化问题严重地区作为典型研究区域,进行野外观测和野外风洞试验研究,定量研究了影响土壤风蚀的有关因子,初步建立了土壤风蚀模型,为土壤风蚀防治工作提供了必要的理论和技术依据。主要研究结果包括:
     1 在土壤风蚀沙化严重地区建立了风蚀试验区,针对当地气候以及种植特点进行土壤风蚀监测。
     试验结果表明:(1)风是影响土壤风蚀的重要因素。不同地表状况下,近地表的风速值不同。风速同土壤风蚀通量之间存在着幂函数关系。(2)易发生风蚀地区土壤颗粒含量最高的集中在0.045~0.25mm之间。不同地表状况表层土壤含水率存在显著差异。表层土壤含水率同土壤风蚀通量之间存在着幂函数关系,随着表层土壤含水率的增大,土壤风蚀通量减小。(3)不同地表植被状况对风速的减弱作用不同,进而影响土壤风蚀通量。植被覆盖度和植被覆盖量是影响土壤风蚀的重要参数。(4)留茬高度和地表粗糙度在一定范围内存在着指数函数关系。表层土壤含水率不同,地表粗糙度不同。(5)耕作垄向与主风向互相垂直时,土壤风蚀通量最小;平行于主风向时,风蚀通量最大。留茬处理和传统耕作相比,可降低土壤风蚀通量,且随着留茬高度的增加,土壤风蚀通量降低幅度在80.2%~97.1%之间。在控制土壤风蚀措施上,葡萄种植区内秸秆覆盖优于无覆盖,玉米秸秆覆盖优于小麦秸秆覆盖。(6)农田防护林后风速和土壤风蚀通量的变化趋势是先小后大。葡萄种植区的风障在一定范围内有降低风速的作用,风障走向与主风向互相垂直时,风障降低风速的效果最好;在一定范围内,防雹网减风效果明显。
     2 在对风蚀模型深入分析和田间试验基础上初步建立了适合研究地区的土壤风蚀模型。模型模拟结果与实测数据基本吻合,但是模型的验证与评价只是初步的,尚需进一步验证。
The phenomenon of soil wind erosion and desertification has already become the most outstanding problem of agricultural sustainable development of China's north farming-pastoral zone, and is playing an important role in the sandstorm. In recent years, the sandstorm remains high frequency, makes the soil wind erosion receive unanimous attention of the expert of environmental protection of soil.
    Taking the serious area of soil wind erosion and desertification as a typical region, which lie in the north of Hebei province : Zhangbeu Huailau Fengning, the paper carries on observing and experimental study of wind-tunnel in the field, studies the involved factor which influence the soil wind erosion with the method quantitative analysis, and has set up soil wind erosion models tentatively. The model offers essential theory and technological basis for preventing and curing soil wind erosion. The main research achievements conclude:
    1. Set up wind erosion trial zone at soil wind erosion and desertification serious areas, Carry on soil wind erosion monitor by the characteristic of local weathers and the plant.
    The result of the test shows: (1) The wind is the important factor of influencing the soil wind erosion. Under different states of the earth's surface, the value of wind velocity of the closed surface of the earth is different. The functional relation of power exists between the wind velocity and the flux of soil wind erosion. (2) The highest soil granule content concentrate on between 0.045 ~0.25mm in the area taking place wind erosion easily. The remarkable difference exists in different waters content of soil of top layer of state of the earth's surface. The functional relation of power exists between top layer soil water content and flux of soil wind erosion, with the increase of the water content of soil of top layer, the flux of wind erosion of soil is reduced. (3)Different types of the earth's surface vegetations, has different function of reducing wind velocity, sequentially influence the flux of soil wind erosion. It is the important parameters of influencing the soil wind erosion that
    
    
    the vegetation covers degree and amount. (4) The highness of the remaining stubble and the earth's surface roughness has functional relation of exponent within the specific limits. If the waters content of soil of top layer is different, the roughness of the earth's surface is different. (5) When main wind directions and the ridge in a field cultivation is perpendicular each other, the flux of soil wind erosion is minimal; while Parallel between them, the soil wind erosion has the largest flux. The treatment of remaining stubble compared with traditional cultivation can reduce the flux of soil wind erosion, and that with the highness of the remaining stubble increasing, the scope of reducing the flux of soil wind erosion ranges in 80. 2%~97. 1%. In controlling soil wind erosion measures, the straw covered is superior to no straw covered in the area that plants grape, the maize straw covered is superior to the wheat straw covered. (6) After the shelter belt of farmland, the change tendency of the wind velocit
    y and the flux of soil wind erosion become lower firsty, and then become great. The windbreak has the function which reduces the wind velocity within the specific limits in of the area that plants grape. When the trend of the windbreak and the direction the main wind are perpendicular each other, the effect of reducing the wind velocity of wind break is the best; Within the specific limits, the effect of the weakening the wind velocity of web of hail-break is obvious .
    2. Based on analysing in depth to the wind erosion model and field foundation of testing, set up tentatively the soil wind erosion models which is suitable for the study the area.The simulation result of the model and the data of surveying are basically identical, but the verification of the model and appraisal is merely preliminary, still need to verify further.
引文
[1] 陈渭南,董光荣,董治宝.中国北方风蚀问题研究的进展与趋势[J].地球科学进展,1994,9(5):6~11.
    [2] 藏英.保护性耕作防治土壤风蚀的试验研究[D].中国农业大学.2003.
    [3] 王晓青.我国的沙尘灾害及其防治对策探讨[J].国土与自然资源研究,2001,(2):50~52.
    [4] 叶笃正,丑纪范,刘纪远,等.关于我国华北沙尘天气的成因与治理对策[J].地理学报,2000,55(5):513~521.
    [5] 陈广庭.近50年北京的沙尘天气及治理对策[J].中国沙漠,2001,21(4):402~407.
    [6] 姚洪林,闫德仁.内蒙古沙漠化土地动态变化[M].呼和浩特:远方出版社,2002.
    [7] 路明.我国沙尘暴发生成因及其防御策略[J].中国农业科学,2002,35(4):440~446.
    [8] 石广玉,赵思雄.沙尘暴研究中的若干科学问题[J].大气科学,2003,27(4):591~606.
    [9] 董治宝,李振山,严平.国外土壤风蚀的研究历史与特点[J].中国沙漠,1995,15(1):100~104.
    [10] 臧英,高焕文.国外农田风蚀发生机理与防治技术的研究[J].农业工程学报,2002,18(3):195~198.
    [11] Dieter Jakel.中国和北非沙漠地区沙尘运动的原因剖析[J].第四世纪研究,2001,21(2):171~182.
    [12] 孟令钦,迟鹏超.风蚀[J].水土保持科技情报,2000,(1):39~41.
    [13] 王力威,石晓燕,李国忠.风蚀机理的分析与认识[J].水利科技与经济,1997,3(2):90~91.
    [14] 董治宝,董光荣,陈广庭.以北方旱作农田为重点开展我国的土壤风蚀研究[J].干旱区资源与环境,1996,10(2):31~37.
    [15] 李玉宝.干旱半干旱区土壤风蚀评价方法[J].干旱区资源与环境,2000,14(2):48~52.
    [16] 哈斯.河北坝上地区土壤风蚀物理化性质初步研究[J].水土保持通报,1997,17(1):1~6.
    [17] 邱新法,曾燕,缪启龙.我国沙尘暴的时空分布规律及其源地和移动路径[J].地理学报,2001,56(3):316~320.
    [18] J Williams, M Nearing, A Nicks,等.利用土壤侵蚀模型研究全球变化[J].水土保持科技情报,1998,(2):14~19.
    [19] Dong Zhibao,Wang Xun Ming,Liu Lianyou.Wind Erosion in Arid and Semiarid China:An Overview[J].Journal of Desert Research,2000,20(2):134~139.
    [20] 吴晓京,陆均天,张晓虎,等.2001年春季沙尘天气分析[J].国土资源遥感,2001,(3):8~10.
    [21] 张国平,张增祥,赵晓丽,等.2000年华北沙尘天气遥感研究[J].遥感学报,2001,5(6):466~473.
    [22] 申元村,杨勤业,景可,等.中国沙暴、尘暴及其防治[J].干早区资源与环境,2000,,14(3):11~14.
    [23] 曲毅.张家口市的防沙治沙[J].中国水土保持,2001,(12):27~28.
    [24] 胡立峰.河北坝上土壤风蚀监测与防治对策研究[D].河北农业大学.2003.
    [25] 马为民,侯秀瑞.河北省风蚀沙化与防治[J].水土保持通报,2001,21(2):52~54.
    
    
    [26] 郭亚萍,袁星,何菲.沙尘暴成因与防治措施初探[J].干旱环境监测,2000,14(3):167~171.
    [27] 张增祥,周全斌,刘斌,等.中国北方沙尘灾害特点及其下垫面状况的遥感监测[J].遥感学报,2001,5(5):378~383.
    [28] 延昊,王长耀,牛铮,等.东亚沙尘源地、沙尘输送路径的遥感研究[J].地理科学进展,2002,21(1):90~96.
    [29] 曹承汉,刘文章.河北省北部地区土壤沙化及其防治建议[J].河北师范大学学报,1995,19(2):119~121.
    [30] 石玉芳,徐东瑞.河北省坝上高原风蚀沙化遥感监测及防治对策[J].河北师范大学学报,1996,20(4):96~101.
    [31] 董治宝.土壤风蚀预报简述[J].中国水土保持,1999,(6):17~19.
    [32] R.A.拜格诺.风沙和荒漠沙丘物理学.钱宁、林秉来译.北京:科学出版社.1959.
    [33] Bagnold R A. The Physics of Blown Sand and Desert Dunes[M].New York: Methuen, 1941, 85~95, 265.
    [34] X C John Zhang, Jurgen D Garbrecht. Precipitation retention and soil erosion under varying climate, land use, and tillage and cropping systems[J].Journal of the American Water Resources Association, 2002, 38 (5): 1241~1253.
    [35] M V Lopez, R Gracia, J L Arrue. An evaluation of wind erosion hazard in fallow lands of semiarid Aragon (NE Spain) [J].Journal of Soil and Water Conservation, 2001, 56 (3): 212~119.
    [36] 朝伦巴根,刘廷玺,刘祥,等.通辽地区地表物质组成、水分状况及其植被状况的调查分析[J].内蒙古农业大学学报.2002,23(2):57~65.
    [37] 海春兴,赵烨,马礼.中国北方农牧交错区夏季土壤风蚀研究——以河北丰宁县大滩乡二道河为例[J].干旱区资源与环境,2002,16(2):6~9.
    [38] D C Nielsen,R M Alken.向日葵残茬盖度对风蚀的影响效果[J].水土保持科技情报,2000,(2): 22~24.
    [39] 臧英,高焕文,周建忠,等.保护性耕作对农田土壤风蚀影响的试验研究[J].农业工程学报,2003,19(2):56~60.
    [40] 张华,李锋瑞,张铜会,等.春季裸露沙质农田土壤风蚀量动态与变异特征[J].水土保持学报,2002,16(1):29~32.
    [41] 张春来,邹学勇,董光荣,等.耕作土壤表面的空气动力学粗糙度及其对土壤风蚀的影响[J].中国沙漠,2002,22(5):473~475.
    [42] Ted M,Zobeck.影响风蚀的土壤特性[J].水土保持科技情报,1995,(2):26~29.
    [43] 高维森.土壤抗蚀抗冲性研究综述[J].水土保持通报,1992,12(5):59~63.
    [44] 刘小平,董治宝.湿沙的风蚀起动风速实验研究[J].水土保持通报,2002,22(2):1~3.
    [45] 董治宝,陈渭南,李振山.植被对土壤风蚀影响作用的实验研究[J].土壤侵蚀与水土保持学报,1996, 2(2):1~8.
    [46] Hagen, L J. Crop residue effects on aerodynamic processes and wind erosion[J].Theoretical and Applied Climatology, 1996, 54: 39~46.
    
    
    [47] 黄富祥,王明星,王跃思.植被覆盖对风蚀地表保护作用研究的某些新进展[J].植物生态学报,2002,26(5):627~633.
    [48] 董治宝,陈渭南,董光荣,等.植被对风沙土风蚀作用的影响[J].环境科学学报,1996,16(4):437~443.
    [49] 张云霞,李晓兵,陈云浩.草地植被盖度的多尺度遥感与实地测量方法综述[J].地球科学进展,2003,18(1):85~93.
    [50] Catherine Bressolier, F Thomas. Studies on wind and plant interactions on French Atlantic Coastaldunes[J]. Journal of Sedimentary Petrology, 1977, 47(1):331~338.
    [51] Stephen A, Wolfe, William G Nickling. The protective role of sparse vegetation in wind erosion[J].Progress in Physical Geography, 1993, 17(1):50~68.
    [52] 李振山,陈广庭.粗糙度研究的现状及展望[J].中国沙漠,1997,17(1):99~102.
    [53] 陈东,曹文洪,傅玲燕,等.风沙运动规律的初步研究[J].泥沙研究,1999,(6):84~89.
    [54] 郑子成.坡耕地地表糙度及其作用研究[D].西北农林科技大学.2002,1~11.
    [55] 吴发启,赵晓光,刘秉正,等.地表糙度的测量方法及对坡面径流和侵蚀的影响[J].西北林学院学报,1998,13(2):15~19.
    [56] 牛国跃,洪钟祥,孙菽芬.地表湿度及粗糙度非均匀分布情况下整体输送方法的初步研究[J].大气科学,1997,21(6):717~724.
    [57] Chamberlain A C. Roughness length of sea, sand and snow[J].Boundary Layer Meteorology, 1983, 25: 405~409.
    [58] 姚洪林,闫德,李宝军,等.多伦县风蚀地貌及风蚀量评价研究[J].内蒙古林业科技,2002,(4):3~7.
    [59] 刘小平,董治宝.直立植被粗糙度和阻力分解的风洞实验研究[J].中国沙漠,2002,22(1):82~87.
    [60] 董治宝,Donald W Fryrear,高尚玉.直立植物防沙措施粗糙特征的模拟实验[J].中国沙漠,2000,20(3):260~263.
    [61] Stout J. Wind erosion within a simple field[J].Trans. Am. Soc. Agric. Engin, 1990, 33 (5): 1597~1660.
    [62] 张小由.沙河洼农田地表风沙运动与土壤风蚀的初步研究[J].干早区研究.1996,13(1):76~80.
    [63] 董治宝,王涛,屈建军.风沙物理学学科建设的若干问题[J].中国沙漠,2002,22(3):205~209.
    [64] 朱朝云,丁国栋,杨明远.风沙物理学[M].北京:中国林业出版社,1992,8.
    [65] 赵举,郑大玮,妥德宝,等.阴山北麓农牧交错带带状留茬间作轮作防风蚀技术研究[J].干旱地区农业研究,2002,20(2):5~9.
    [66] 妥德宝,段玉,赵沛义,等.带状留茬间作对防治干旱地区农田风蚀沙化的生态效应[J].华北农学报,2002,17(4):63~67.
    [67] 程国彦,郝建国,范希全.农田留高茬在抗风蚀效能方面的初步探析[J].农村牧区机械化,2002(4):53~55.
    [68] 何鸿鸣,周杰.防护林对沙尘阻滞作用的机理分析[J].中国沙漠,2002,22(2):197~200.
    [69] 于大炮.辽西地区生态经济型水土保持林效益评价及模式研究[D].沈阳农业大学 2001.
    [70] 范志平,曾德慧,朱教君,等.农田防护林生态作用特征研究[J].水土保持学报,2002,16(4):130~
    
    133.
    [71] 宣捷,俞学曾.风障减少尘埃飞起的风洞模拟研究[J].环境科学研究,1997,10(2):14~18.
    [72] David A Grantz, David L Vaughn, Robert J Farber, et al. Wind barriers suppress fugitive dust and soil-derived airborne particles in arid regions[J].Journal of Environmental Quality, 1998, 27 (4): 946~952.
    [73] J D Bilbro, D W Fryrear. Comparative performance of forage sorghum, grain sorghum, kenaf, switchgrass and slat-fence windbarriers in reducing wind velocity[J].Journal of Soil and Water Conservation, 1997, 52 (6): 447~453.
    [74] D W Fryear,J D Bilbro.RWEQ:改进后的风蚀预测模型(Ⅰ)[J].水土保持科技情报,2001,(2):20~22.
    [75] D W Fryear,J D Bilbro.RWEQ:改进后的风蚀预测模型(Ⅱ)[J].水土保持科技情报,2001,(3):22~23.
    [76] Woodruff, N P, Siddoway F H. A wind Erosion Equation[J].Soil Science Society of America Proceedings, 1965, 29: 602~608.
    [77] Qiong Gao, Mei Yu, Longjun Ci. Modeling wind and water erosion in northern China under climate and land use changes[J].Journal of Soil and Water Conservation, 2002, 57 (1): 46~55.
    [78] 张光辉.土壤侵蚀模型研究现状与展望[J].水科学进展,2002,13(3):389~396.
    [79] D W Fryrear,C A Krammes.土壤风蚀度的综合计算[J].水土保持科技情报,1995,(2):38~41.
    [80] 张国平.基于遥感和GIS的中国土壤风力侵蚀研究[D].中国科学院研究生院(遥感应用研究所).2002.
    [81] L J Hagen, L Ewager, E L Skidmore. Analytical solutions and sensitivity analyses for sediment transport in WEPS. Transactions of the ASAE, 1999, 42 (6): 1715~1721.
    [82] 史培军,刘宝元,张科利,等.土壤侵蚀过程与模型研究[J].资源科学,1999,21(5):9~18.
    [83] 马玉明.风沙运动学[M].呼和浩特:远方出版社,2002.
    [84] 董治宝,陈渭南,董光荣,等.关于人为地表结构破损与土壤风蚀关系的定量研究[J].科技通报,1995,40(1):54~57.
    [85] Fryrear D W, Krammes C A, Williamson D L, et al. Computing the wind erodible fraction of soils[J].Journal of Soil and Water Conservation, 1994, 49 (2): 183
    [86] 王训明,董治宝,武生智,等.土壤风蚀过程的一类随机模型[J].水土保持通报,2001,21(1):19~22.
    [87] 董治宝.建立小流域风蚀量统计模型初探[J].水土保持通报,1998,18(5):55~62.
    [88] 赵焕勋.对皇甫川流域土壤侵蚀规律的再认识[J].水土保持研究,1998,5(3):101~105.
    [89] 刘连友,王建华,李小雁.耕作土壤可蚀性颗粒的风洞模拟测定[J].科学通报,1998,43(15):1663~1666.
    [90] 哈斯.坝上高原土壤不可蚀性颗粒与耕作方式对风蚀的影响[J].中国沙漠,1994,14(4):92~97.
    [91] 哈斯.河北坝上高原土壤风蚀物垂直分布的初步研究[J].中国沙漠,1997,17(1):9~14.
    [92] 戚隆溪,董飞,陈强,等.沙粒启动风速研究[J].力学与实践,2001,23(4):13~14.
    [93] 孙显科,郭志中.从混合沙输沙率增大探究沙粒的流体起动机理[J].甘肃林业科技,1999,24
    
    (3):12~17.
    [94] 渠海奇.测定沙丘前移量计算沙区风蚀模数的方法[J].中国水土保持,1995,(4):12~14.
    [95] 董飞,刘大有,贺大良.风沙运动的研究进展和发展趋势[J].力学进展,1995,25(3):368~382.
    [96] 姚文艺.风力侵蚀及其预报方法[J].中国水土保持,1994,(3):16~19.
    [97] 李光录,张胜利.土壤侵蚀模型砚究现状及回顾[J].西北林学院学报,2000,15(2):76~83.
    [98] 刘小平,董治宝,王训明.固定沙质床面的空气动力学粗糙度[J].中国沙漠,2003,23(2):111~117.
    [99] A Saleh, D W Fryrear. Soil roughness for the revised wind erosion equation (RWEQ)[J]. Journal of Soil and Water Conservation, 1999, 54 (2): 473~477.
    [100] A Saleh,D W Fryrear.关于修正的风蚀方程土壤糙度系数的研究[J].水土保持科技情报,2000,(4):14~15.
    [101] 刘小平,董治宝.空气动力学粗糙度的物理与实践意义[J].中国沙漠,2003,23(4):337~346.
    [102] 刘玉璋,董光荣,李长治.影响土壤风蚀主要因素的风洞实验研究[J].中国沙漠,1992,12(4):41~48.
    [103] 李小雁,李福兴,刘连友.土壤风蚀中有关土壤性质因子的研究历史与动向[J].中国沙漠,1998,18(1):91~95.
    [104] 范锦龙,潘志华,赵举,等.风蚀强度的空间差异及影响分析[J].水土保持学报,2003,17(2): 100~102
    [105] L J Hagen, L Ewager, E L Skidmore. Analytical solutions and sensitivity analyses for sediment transport in WEPS. Transactions of the ASAE, 1999, 42 (6): 1715~1721.
    [106] Williams J, Nearing M, Nicks A, et al. Using soil erosion models for global change studies[J].Journal of Soil and Water Conservation, 1996, 51 (5): 381~385.

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