基于SOTER数据库的河北省土壤侵蚀研究

摘要/Abstract

摘要： 【研究目的】应用SOTER数据库与RUSLE模型定量化估算河北省土壤侵蚀风险。【方法】在建立河北省SOTER数据库的基础上，提取地形因子、植被覆盖与耕作管理措施和土壤保持措施，结合土壤可蚀性与降雨侵蚀力因子，应用RUSLE模型定量评价河北省山区土壤侵蚀风险。【结果】河北省轻度水土流失面积3.5万km2，占18.9%；中度水土流失面积1.1万km2，占6.1%；强度与极强度水土流失面积分别为8 183km2与1.0万km2，分别占全省面积的4.4%和5.6%；剧烈土壤侵蚀面积为1.2万km2，占全省面积的6.8%。【结论】河北省土壤侵蚀主要发生在太行山、燕山山区，尤以低山丘陵地带的土石山区最为严重。

关键词: 水稻, 水稻, 生长, 重金属, 镉, 矿质元素

Abstract: 【OBJECTIVE】This study was conducted in portion of Hebei province, the main region in China for the production of food, most of which is located in the mountain area.【METHOD】The Revised Universal Soil Loss Equation (RUSLE) was used to predict annual soil loss using, based on Hebei SOTER database, to determine the erosion hazard and target locations for appropriate initiation of conservation measures. All factors used in RUSLE model were calculated using local data. 【RESULTS】The results of the RUSLE model show that 41.8% of the whole area had a current erosion amount of more than 200t·km2/a, 22.9% more than 2500t·km2/a, and 6.8% more than 15 000t·km2/a. 【CONCLUSION】The erosion mainly distributed over Taihang and Yanshan mountainous area, especially the sandstone highlands without vegetation cover.

中图分类号:

S157.1

门明新,陈建,宇振荣,许皞. 基于SOTER数据库的河北省土壤侵蚀研究[J]. 中国农学通报, 2007, 23(7): 587-587.

Men Mingxin, Chen Jian, Yu Zhenrong, Xu Hao. Assessment of Soil Erosion Based on SOTER in Hebei Province[J]. Chinese Agricultural Science Bulletin, 2007, 23(7): 587-587.

参考文献

[1] 方学敏,万兆惠,徐永年.土壤抗蚀性研究现状综述.泥沙研究,1997,(2):87-91.
[2] 周慧珍.简介1:100万世界土壤与土地数字化数据库.土壤通报,1991,22(3):102-103.
[3] Renard K G, Foster G R, Weesies G A. Predicting Soil Erosion By Water:A Guide to Conservation Planning with the Revised Universal Soil Loss Equation(RUSLE). The USDA Agricultural Handbook,1997,703:19-64.
[4] Williams J R, Renard K G, Dyke P T. EPIC-a new method for assessing erosion’s effect on soil productivity. Journal of Soil and Water Conservation,1983,38:381-383.
[5] 门明新,赵同科,彭正萍,等.基于土壤粒径分布模型的河北省土壤可蚀性研究.中国农业科学,2004,37(11):1647-1653.
[6] 章文波,谢云,刘宝元.利用日雨量计算降雨侵蚀力的方法研究.地理科学,2002,22(6):705-711.
[7] Desmet P J, Govers G. A GIS procedure for automatically calculating the USLE LS factor on topographically complex landscape units. Journal of Soil and Water Conservation,1996,51(5):427-433.
[8] Nearing M A. A single continuous function for slope steepness influence on soil loss. Soil Science Society of America Journal,1997,1:917-919.
[9] 李双才,孔亚平,符素华.北京山区植被盖度季节变化规律模拟研究.北京师范大学学报(自然科学版),1999,38(2):273-278.
[10] 于淑霞,王宁.基于地理信息系统的土壤侵蚀研究.水土保持研究,1999,6(2):1-7.
[11] 王晓燕,王晓峰,汪清平,等.北京密云水库小流域非点源污染负荷估算.地理科学,2004,24(2):227-231.
[12] 张淑荣,陈利顶,傅伯杰,等.农业区非点源污染潜在危险性评价-以于桥水库流域磷流失为例.第四纪研究,2003,23(3):262-269.
[13] 符素华,吴敬东,段淑怀,等.北京密云石匣小流域水土保持措施对土壤侵蚀的影响研究.水土保持学报,2001,15(2):21-24.
[14] 门明新,宇振荣,许皞.基于地统计学的河北省降雨侵蚀力空间格局研究.中国农业科学,2006,39(11):2270-2277.
[15] 张宪奎,许靖华,卢秀琴,等.黑龙江省土壤流失方程的研究.水土保持通报,1992,12(4):1-9.