地理科学 ›› 2016, Vol. 36 ›› Issue (10): 1573-1580.doi: 10.13249/j.cnki.sgs.2016.10.015
收稿日期:
2015-12-20
修回日期:
2016-03-13
出版日期:
2016-10-20
发布日期:
2020-09-07
作者简介:
作者简介: 陈世发(1984-),男,湖南平江人,博士,讲师,从事土壤侵蚀研究。E-mail:
基金资助:
Received:
2015-12-20
Revised:
2016-03-13
Online:
2016-10-20
Published:
2020-09-07
摘要:
选取1951~2013年韶关市分月降雨量数据,采用月降雨侵蚀力模型计算降雨侵蚀力,分析ENSO(厄尔尼诺-南方涛动)对韶关市降雨侵蚀力的影响。研究表明:① 韶关市降雨侵蚀力年际变化和年内变化较大,总体呈现波动上升趋势;② 降雨侵蚀力与赤道太平洋SST距平值呈现极显著相关,降雨侵蚀力随SST距平值增加呈现先增加后递减的趋势。ENSO冷暖事件发生时降雨侵蚀力较小,在其它土壤侵蚀因素不变的条件下,此时期的土壤侵蚀相对较轻;③ 降雨侵蚀力与SOI存在显著相关,降雨侵蚀力随着SOI增加而减小;④ 降雨侵蚀力与MEI呈现极显著的正相关关系。
中图分类号:
陈世发. ENSO对韶关市1951~2013年降雨侵蚀力影响研究[J]. 地理科学, 2016, 36(10): 1573-1580.
Chen Shifa. Impact of ENSO on Rainfall Erosivity in Shaoguan City During 1951-2013[J]. SCIENTIA GEOGRAPHICA SINICA, 2016, 36(10): 1573-1580.
表1
1951~2013年ENSO冷暖事件及降雨侵蚀力"
性质 | 起止年月 | 历时(月) | 降雨侵蚀力 [MJ·mm/(hm2·h·a)] | 性质 | 起止年月 | 历时(月) | 降雨侵蚀力 [MJ·mm/(hm2·h·a)] |
---|---|---|---|---|---|---|---|
ENSO 暖事件 | 1951.7~1952.1 1953.1~1954.1 | 7 13 | 27.45 45.77 | ENSO 冷事件 | 1954.5~1956.5 1964.5~1965.1 | 25 9 | 40.68 37.12 |
1957.4~1958.7 | 16 | 45.06 | 1967.12~1968.4 | 5 | 28.48 | ||
1958.10~1959.2 | 5 | 17.85 | 1970.7~1972.1 | 19 | 25.37 | ||
1963.7~1964.2 | 8 | 27.82 | 1973.6~1974.7 | 14 | 44.58 | ||
1965.6~1966.4 | 11 | 26.84 | 1974.10~1976.3 | 6 | 44.42 | ||
1968.11~1970.1 | 15 | 31.13 | 1984.10~1985.6 | 9 | 27.8 | ||
1972.5~1973.3 | 11 | 41.73 | 1988.5~1989.5 | 13 | 35.74 | ||
1976.9~1977.2 | 6 | 18.03 | 1995.8~1996.3 | 8 | 24.61 | ||
1977.9~1978.1 | 5 | 21.81 | 1998.7~2001.3 | 33 | 31.84 | ||
1979.10~1980.2 | 5 | 9.36 | 2007.8~2008.6 | 11 | 42.2 | ||
1982.4~1983.6 | 15 | 58.8 | 2010.7~2011.4 | 10 | 20.6 | ||
1986.9~1988.2 | 18 | 27.99 | 2011.8~2012.3 | 7 | 32.35 | ||
1991.6~1992.7 | 14 | 48.9 | ENSO暖事件降雨侵蚀力 | 36.75 | |||
1994.10~1995.3 | 6 | 28.97 | ENSO冷事件降雨侵蚀力 | 33.88 | |||
1997.5~1998.5 | 13 | 58.69 | ENSO冷暖事件降雨侵蚀力 | 35.44 | |||
2002.6~2003.2 | 9 | 45.39 | 非ENSO冷暖事件降雨侵蚀力 | 43.83 | |||
2004.7~2005.4 | 10 | 26.79 | 韶关市平均降雨侵蚀力 | 39.71 | |||
2006.9~2007.1 | 5 | 18.16 | |||||
2009.7~2010.4 | 10 | 34.38 |
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