[1]刘刚,许文年,蔡崇法,等.基于黄土沉积速率的土壤侵蚀危险度评价[J].水土保持研究,2012,19(02):19-21,25.
　LIU Gang,XU Wen-nian,CAI Chong-fa,et al.Assessment of Soil Erosion Risk Based on Loess Deposition Rate[J].Research of Soil and Water Conservation,2012,19(02):19-21,25.
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基于黄土沉积速率的土壤侵蚀危险度评价

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 19 期数: 2012年02期 页码: 19-21,25 栏目: 出版日期: 2012-04-20
Title:
Assessment of Soil Erosion Risk Based on Loess Deposition Rate
作者:
刘刚1,2,3, 许文年1, 蔡崇法3, 刘普灵2, 杨明义2, 张琼1
1. 三峡大学, 三峡库区生态环境教育部工程研究中心, 湖北 宜昌 443002;
2. 中国科学院, 水利部, 水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100;
3. 华中农业大学, 农业部, 长江中下游耕地保育重点实验室, 武汉 430070
Author(s):
LIU Gang1,2,3, XU Wen-nian1, CAI Chong-fa3, LIU Pu-ling2, YANG Ming-yi2, ZHANG Qiong1
1. Engineering Reseach Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang, Hubei 443002, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China
关键词:
14C年龄; 黄土沉积速率; 土壤侵蚀速率; 容许土壤流失量; 全新世
Keywords:
14C age; loess deposition rate; soil erosion rate; soil loess tolerance; the Holocene
分类号:
S157.1
摘要:
土壤侵蚀危险度是评估和预测侵蚀作用破坏土地资源和生态环境危险性的重要指标，也是科学防治水土流失的基础。利用14C测年技术对陕北黄土高原黄土沉积速率进行研究，并通过计算土壤侵蚀模数与黄土沉积速率的比值，对该研究区的土壤侵蚀危险度进行评价。结果表明：洛川县、延长县和横山县采样点的黄土沉积速率分别为0.0179cm/a，0.0153cm/a和0.0213cm/a，土壤侵蚀危险度分别为14.1，43.3和24.8，均远远大于临界危险度值1，因此该地区为水土流失重点防治区域。通过该项研究可以为水土保持治理及规划提供科学参考，并为环境治理决策部门提供理论依据。
Abstract:
Soil erosion risk is an important index for evaluation and prediction on risk of land resources and ecological environment which is destroyed by soil erosion,and also a basis for soil and water conservation.Radiocarbon dating method was used to examine loess deposition rate in north Shaanxi Province.And soil erosion risk in this area was assessed by the ratio of soil erosion modulus and loess deposition rate.The results indicated that the loess deposition rate in Luochuan,Yanchang,and Hengshan was 0.0179cm/a,0.0153cm/a,and 0.0213cm/a,respectively.The soil erosion risks were 14.1,43.3,and 24.8,individually,which were much lager than the critical value 1.Thus,the research area was an important region for soil and water conservation.This result could provide scientific references for management and programming of soil and water conservation,and theoretical basis for environmental treatment decision.

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相似文献/References:

[1]刘刚,许文年,蔡崇法,等.陕西洛川全新世黑垆土理化特征年龄函数的构建[J].水土保持研究,2012,19(03):24.
　LIU Gang,XU Wen-nian,CAI Chong-fa,et al.Construction of Heilu Soil Chronofunction in the Holocene in Luochuan, Shaanxi Province[J].Research of Soil and Water Conservation,2012,19(02):24.

备注/Memo

收稿日期:2011-1-13;改回日期:2011-3-6。
基金项目:湖北省教育厅自然科学研究项目(Q20111207，XD20100595);黄土高原土壤侵蚀与旱地农业国家重点实验室基金(10501-1211);中国博士后科学基金(2011049162);三峡大学基金项目(KJ2009B033)
作者简介:刘刚（1982- ）,男,博士,副教授,从事水土保持与生态环境研究。E-mail:extreme0082000@yahoo.com.cn

更新日期/Last Update: 1900-01-01