地球信息科学学报 ›› 2018, Vol. 20 ›› Issue (11): 1622-1630.doi: 10.12082/dqxxkx.2018.180091
陈报章1,2(), 渠俊峰1,*(
), 葛梦玉1, 沈艳文1, 王安妮1, 王国斌1
收稿日期:
2018-02-02
修回日期:
2018-08-08
出版日期:
2018-11-20
发布日期:
2018-11-20
通讯作者:
渠俊峰
E-mail:baozhang.chen@igsnrr.ac.cn;qjf4209779@163.com
作者简介:
作者简介:陈报章(1963-),男,江苏邳州人,博士,研究方向为基于定量遥感和空间分析技术的陆面过程和陆地生态系统过程模型模拟研究。E-mail:
基金资助:
CHEN Baozhang1,2,*(), QU Junfeng1,*(
), GE Mengyu1, SHEN Yanwen1, WANG Anni1, WANG Guobin1
Received:
2018-02-02
Revised:
2018-08-08
Online:
2018-11-20
Published:
2018-11-20
Contact:
CHEN Baozhang,QU Junfeng
E-mail:baozhang.chen@igsnrr.ac.cn;qjf4209779@163.com
Supported by:
摘要:
本文以3S技术为支撑,在修正水土流失方程(RUSLE)的基础上,针对徐州黄泛平原-丘陵地带的特殊地形地貌、对2000年以来徐州市水土流失时空变化特征进行了分析。结果表明:2000-2014年徐州市土壤侵蚀等级以微度为主,微度侵蚀面积占总侵蚀面积多年平均达到76.34%;中度侵蚀次之,所占比例在10%~17%间;剧烈侵蚀所占比例最少。轻度及以上土壤侵蚀等级主要发生在中部微山湖下游、京杭大运河一带的丘陵岗地地区、主城区与故黄河北岸的黄泛平原地区,以及丰县、新沂、邳州的局部区域;土壤侵蚀存在一定程度年际变化特征,睢宁、丰县、邳州的部分地区侵蚀面积年际变化较为明显,土壤侵蚀总面积整体上呈现下降趋势。
陈报章, 渠俊峰, 葛梦玉, 沈艳文, 王安妮, 王国斌. 徐州市水土流失时空变化研究[J]. 地球信息科学学报, 2018, 20(11): 1622-1630.DOI:10.12082/dqxxkx.2018.180091
CHEN Baozhang,QU Junfeng,GE Mengyu,SHEN Yanwen,WANG Anni,WANG Guobin. Spatio-temporal Analysis on Soil Erosion over Xuzhou City[J]. Journal of Geo-information Science, 2018, 20(11): 1622-1630.DOI:10.12082/dqxxkx.2018.180091
表2
2000-2014年徐州市不同土壤侵蚀强度等级面积与所占比例统计表"
年份 | 轻度 | 中度 | 强度 | 极强度 | 剧烈 | |||||
---|---|---|---|---|---|---|---|---|---|---|
面积/km2 | 比例/% | 面积/km2 | 比例/% | 面积/km2 | 比例/% | 面积/km2 | 比例/% | 面积/km2 | 比例/% | |
2000 | 251.685 | 71.72 | 51.007 | 14.54 | 22.447 | 6.40 | 22.897 | 6.52 | 2.878 | 0.82 |
2001 | 278.526 | 80.22 | 40.052 | 11.53 | 20.671 | 5.95 | 7.453 | 2.15 | 0.522 | 0.15 |
2002 | 267.817 | 81.59 | 36.709 | 11.18 | 18.561 | 5.65 | 5.068 | 1.54 | 0.080 | 0.02 |
2003 | 306.114 | 72.25 | 58.555 | 13.82 | 24.594 | 5.80 | 29.016 | 6.85 | 5.423 | 1.28 |
2004 | 83.902 | 66.11 | 20.497 | 16.15 | 12.696 | 10.00 | 9.447 | 7.44 | 0.377 | 0.30 |
2005 | 379.213 | 74.02 | 63.761 | 12.45 | 28.335 | 5.53 | 31.191 | 6.09 | 9.788 | 1.91 |
2006 | 108.866 | 73.85 | 19.127 | 12.97 | 12.906 | 8.75 | 6.264 | 4.25 | 0.261 | 0.18 |
2007 | 168.254 | 68.77 | 37.514 | 15.33 | 19.475 | 7.96 | 17.292 | 7.07 | 2.117 | 0.87 |
2008 | 342.229 | 75.84 | 57.097 | 12.65 | 23.085 | 5.12 | 25.413 | 5.63 | 3.415 | 0.76 |
2009 | 163.831 | 77.94 | 24.229 | 11.53 | 15.135 | 7.20 | 6.773 | 3.22 | 0.232 | 0.11 |
2010 | 221.519 | 78.59 | 33.222 | 11.79 | 19.446 | 6.90 | 7.490 | 2.66 | 0.203 | 0.07 |
2011 | 278.889 | 81.55 | 36.882 | 10.78 | 20.899 | 6.11 | 5.272 | 1.54 | 0.058 | 0.02 |
2012 | 281.206 | 82.86 | 36.226 | 10.67 | 17.852 | 5.26 | 4.068 | 1.20 | 0.022 | 0.01 |
2013 | 153.229 | 77.31 | 24.791 | 12.51 | 15.546 | 7.84 | 4.597 | 2.32 | 0.051 | 0.03 |
2014 | 284.657 | 82.48 | 37.204 | 10.78 | 18.714 | 5.42 | 4.532 | 1.31 | 0.029 | 0.01 |
平均 | 237.996 | 76.34 | 38.458 | 12.58 | 19.357 | 6.66 | 12.451 | 3.99 | 1.697 | 0.45 |
标准差 | 85.408 | 5.14 | 13.829 | 1.71% | 4.287 | 1.43% | 9.842 | 2.37 | 2.765 | 0.57 |
变率/% | 35.89 | 6.73 | 35.96 | 13.59 | 22.15 | 21.47 | 79.05 | 59.40 | 162.93 | 126.67 |
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