Features and application of a rangeland detection algorithm based on fractal dimensions to detect characteristics of barren patch

Abstract

Abstract: The area and circumference of barren patch in grazing grassland was calculated by GIS software (ArcView GIS 3.2a) using field digital imaging to measure the shape index and fractal dimensions of barren patches. This method showed that barren patches in grazing grassland of the degraded alpine meadows has typical fractal characteristics with shape index and fractal dimensions of 1.8 and 1.1 respectively. There were 120 least insert points following the typical barren patch boundary in degraded alpine grazing meadow and the relative shape index change rate was <5% while the relative fractal dimension change rate was <0.5%. The method gives fast, accurate measurement, fine practicability and maneuverability. It provides a new, inovative technique in grazing ecology to explain the complicated problem of barren patch appearance in grazing grassland.

CLC Number:

S812.8

WANG Zhao-qi, LIN Hui-long. Features and application of a rangeland detection algorithm based on fractal dimensions to detect characteristics of barren patch[J]. Acta Prataculturae Sinica, 2011, 20(2): 156-162.

References

[1] 林慧龙, 龙瑞军, 任继周. 放牧侵蚀研究回顾与展望[J]. 生态学杂志, 2008, 27(12): 2222-2227.
[2] 辛晓平, 徐斌, 单保庆, 等. 恢复演替中草地斑块动态及尺度转换分析[J]. 生态学报, 2000, 20(4): 587-593.
[3] 张卫国, 黄文冰, 杨振宇. 草地微斑块与草地退化关系的研究[J]. 草业学报, 2003, 12(3): 44-50.
[4] 杜岩功, 曹广民, 王启兰, 等. 放牧对高寒草甸地表特征和土壤物理性状的影响[J]. 山地学报, 2007, 25(3): 338-343.
[5] 曹广民, 龙瑞军. 三江源区“黑土滩”型退化草地自然恢复的瓶颈及解决途径[J]. 草地学报, 2009, 17(1): 4-9.
[6] Lavorel S, Chesson P. How species with different regeneration niches coexist in patchy habitats with local disturbances[J]. Oikos, 1995, 74: 103-114.
[7] Bullock J M, Hill B C, Silvertown J, et al. Gap colonization as a source of grassland community change: Effects of gap size and grazing on the rate and mode of colonization by different species[J]. Oikos, 1995, 72: 273-282.
[8] Williams R J. Gap dynamics in subalpine heathland and grassland vegetation in south-eastern Australia[J]. Journal of Ecology, 1992, 80: 343-352.
[9] Vandvik V. Gap dynamics in perennial subalpine grasslands: Trends and processes change during secondary succession[J]. Journal of Ecology, 2004, 92: 86-96.
[10] 刘桂霞, 韩建国. 草地生态学领域空斑研究进展[J]. 生态学杂志, 2006, 25(9): 1136-1140.
[11] 张国胜, 李希来, 李林, 等. 青南高寒草甸秃斑地形成的气象条件分析[J]. 中国草地, 1998, 6: 12-16.
[12] 李希来. 果洛地区“黑土滩”中秃斑地测定[J]. 青海畜牧兽医杂志, 1994, 24(3): 17-19.
[13] 韩天虎, 花立明, 许国成. 高原鼠兔危害级别划分[J]. 草业学报, 2008, 17(5): 130-137.
[14] White M A, Asner G P, Nemani R R, et al. Measuring fractional cover and leaf area index in arid ecosystem: Digital camera, radiation transmittance, and laser altimetry methods[J]. Remote Sensing of Environment, 2000, 74: 45-57.
[15] Zhou Q, Robson M, Pilesjo P. On the ground estimation of vegetation cover in Australian rangelands[J]. International Journal of Remote Sensing, 1998, 9: 1815-1820.
[16] 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.
[17] 池宏康, 周广胜, 许振柱, 等. 草地植被盖度的近距离遥感测定[J]. 草业学报, 2007, 16(2): 105-110.
[18] 姬秋梅, Quiroz R, Calos L V. 应用数字照相机研究西藏草地产草量[J]. 草地学报, 2008, 16(1): 34-38.
[19] 于龙, 周立等, 刘伟, 等. 高原鼠兔洞穴区次生斑块面积的测定方法[J]. 兽类学报, 2006, 26(1): 89-93.
[20] 赵传燕, 冯兆东, 南忠仁, 等. 黄土高原祖厉河流域潜在植被分布模拟研究[J]. 地理学报, 2007, 62(1): 52-61.
[21] Yang L, Guo D H, Meng L Z, et al. Spatial vegetation patterns as early signs of desertification: A case study of a desert steppe in Inner Mongolia, China[J]. Landscape Ecology, 2010, 25(10): 1519-1527.
[22] 杨昕, 汤国安, 邓凤东, 等. ERDAS遥感数字图像处理实验教程[M]. 北京: 科学出版社, 2009: 118-134.
[23] Mandelbrot B B. The Fractal Geometry of Nature[M]. New York: WH Freeman and Company, 1982.
[24] 李永国, 颜忠诚. 分形理论及其在生命科学中的应用[J]. 首都师范大学学报(自然科学版), 2009, 30(1): 43-48.
[25] 林慧龙, 任继周. 践踏和降水对环县典型草原土壤颗粒分维特征的影响[J]. 草业学报, 2009, 18(4): 202-209.
[26] 田育红, 刘鸿雁. 草地景观生态研究的几个热点问题及其进展[J]. 应用生态学报, 2003, 14(3): 427-433.
[27] 邬建国. 景观生态学——格局、过程、尺度与等级[M]. 北京: 高等教育出版社, 2000.
[28] 傅伯杰, 陈利顶, 马克明, 等. 景观生态学原理及应用[M]. 北京: 科学出版社, 2001.
[29] Frontier S. Applications of fractal theory to ecology[A]. In: Legendre P, Legendre L. Developments in Numerical Ecology[M]. Berlin: Sptinger, 1987: 335-378.
[30] 邬伦, 刘瑜, 张晶, 等. 地理信息系统——原理、方法和应用[M]. 北京: 科学出版社, 2005: 138-140.
[31] (美)Kang-tsung Chang. 地理信息系统导论[M]. 陈健飞, 译. 北京: 科学出版社, 2003: 205-207.
[32] McGwire K, Minor T, Fenstermake L. Hyperspectral mixture modeling for quantifying sparse vegetation cover in arid environment[J]. Remote Sensing of Environment, 2000, 72: 360-374.
[33] 仁青吉, 崔现亮, 赵彬彬. 放牧对高寒草甸植物群落结构及生产力的影响[J]. 草业学报, 2008, 17(6): 134-140.
[34] 王长庭, 王启兰, 景增春, 等. 不同放牧梯度下高寒小嵩草草甸植被根系和土壤理化特征的变化[J]. 草业学报, 2008, 17(5): 9-15.
[35] 仁青吉, 武高林, 任国华. 放牧强度对青藏高原东部高寒草甸植物群落特征的影响[J]. 草业学报, 2009, 18(5): 256-261.
[36] 任继周, 林慧龙. 江河源区草地生态建设构想[J]. 草业学报, 2005, 14(2): 1-8.
[37] 左万庆, 王玉辉, 王风玉, 等. 围栏封育措施对退化羊草草原植物群落特征影响研究[J]. 草业学报, 2009, 18(3): 12-19.
[38] 林丽, 龙瑞军, 赵成章, 等. 阿尔泰狗哇花型退化草地植物功能群特征初探[J]. 草业科学, 2009, 26(6): 35-40.