[1]张荣华,刘霞,姚孝友,等.桐柏大别山区土壤侵蚀特征分析[J].水土保持研究,2010,17(01):24-30.
　ZHANG Rong-hua,LIU Xia,YAO Xiao-you,et al.Analysis on Characters of Soil Erosion in Tongbai-Dabie Mountainous Area[J].Research of Soil and Water Conservation,2010,17(01):24-30.
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桐柏大别山区土壤侵蚀特征分析

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年01期 页码: 24-30 栏目: 出版日期: 2010-02-20
Title:
Analysis on Characters of Soil Erosion in Tongbai-Dabie Mountainous Area
作者:
张荣华' target="_blank" rel="external"> 张荣华1, 刘霞1, 姚孝友2, 张光灿1, 张荣1, 常成1
1. 山东农业大学林学院水土保持系, 山东农业大学农业生态与环境重点实验室, 山东, 泰安, 271018;
2. 水利部淮河水利委员会水土保持处, 安徽, 蚌埠, 233001
Author(s):
ZHANG Rong-hua' target="_blank" rel="external"> ZHANG Rong-hua1, LIU Xia1, YAO Xiao-you2, ZHANG Guang-can1, ZHANG Rong1, CHANG Cheng1
1. Soil and Water Conservation Department of Forestry College, Key Laboratory of Agricultural Ecology and Environment, Shandong Agricultural University, Tai’an, Shandong 271018, China;
2. Soil and Water Conservation Division of Huaihe River Commission of Water Resources Ministry, Bengbu, Anhui 233001, China
关键词:
土壤侵蚀; 动态变化; 影响因子; 预测; 桐柏大别山区
Keywords:
soil erosion; dynamic; influence factors; forecast; tongbai-dabie mountainous area
分类号:
S157.1
摘要:
基于遥感影像,结合野外实地调查,分析桐柏大别山区土壤侵蚀变化规律,探讨侵蚀因子对土壤侵蚀的影响,并预测土壤侵蚀变化趋势.结果表明,2007年桐柏大别山区土壤侵蚀面积占土地总面积23.44%,侵蚀强度以轻度为主,主要分布在金寨县、霍山县、信阳市辖区、桐柏县、商城县、新县等南部山区;20a间土壤侵蚀面积先增加后减小总体减少,区域增减变化差异明显;强度先增强后减弱,总体由高强度向低强度转变,但局部地区强烈、极强烈面积增加,水土流失与生态退化加剧.降雨、土壤、坡度、植被、土地利用、人类活动等不同程度地影响着土壤侵蚀,既有促进水土保持的一面,也有加速土壤侵蚀的一面,土壤侵蚀主要发生在坡耕地、经济林地和疏幼林地等植被覆盖较少、坡度较大的地区.如果继续保持现有变化速度,未来20a土壤侵蚀面积将呈逐年减少的趋势.
Abstract:
Based on remote sensing data,combined with investigation,the dynamic law of soil erosion is researched,the impact of influence factors on soil erosion is discussed,and the future situation is forecasted.The results indicate that,the soil erosion area accounts for 23.44% of the total area in 2007 in Tongbai-Dabie Mountain Area,and erosion intensity is mild erosion primarily,mainly distributing in south mountainous area,such as Jinzhai County,Huoshan County,the Xinyang municipal district,Tongbai County,Shangcheng County,Xin County and so on.During 20 years the soil erosion area assumes the overall reduction tendency,and increases firstly reduces secondly,and the change difference in different region is obvious.The erosion intensity strengthens firstly and weakens secondly,and transforms from high intensity level to low intensity level overall,but in some area the area of serious and extremely erosion increases,and soil erosion and ecological degeneration is more serious.The degrees of influence on soil erosion by rainfall,soil,slope,vegetation,land utilization way and human activity is different,and it can promote soil and water conservation on one side,and it can also accelerate soil erosion on the other side,and the soil erosion mainly occurs in the farming land,economical forest land and the sparse young growth forest land in which vegetation coverage is relatively few and the slope is relatively big.If the speed can be continued in the next 20 years,the area of soil erosion will reduce annually.

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备注/Memo

收稿日期:2009-7-20。
基金项目:水利部淮河水利委员会“淮河流域植被演替规律与生态修复对策研究”、“淮河流域生态修复机理和评价指标研究”
作者简介:张荣华(1984- ),女,山东省威海市人,硕士,主要研究方向:水土保持生态修复和水土保持信息技术.E-mail:shuibaos@sdau.edu.cn
通讯作者:刘霞(1971- ),女,山东省菏泽市人,副教授,博士,主要研究方向:水土保持生态修复和水土保持信息技术.E-mail:liuxia@sdau.edu.cn

更新日期/Last Update: 1900-01-01