桂西北喀斯特丘陵区峰丛洼地小流域泥沙堆积的~(137)Cs示踪研究
Study on sediment deposition in a peak-cluster depression catchment using ~(137)Cs technique in
查看参考文献30篇
文摘
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西南喀斯特地区是我国生态环境最脆弱的地区之一,土壤侵蚀及其造成的石漠化已成为制约该区可持续发展最严重的生态环境问题.本文以桂西北喀斯特丘陵区环江成义屯的峰丛洼地小流域为研究对象,运用~(137)Cs示踪技术对洼地泥沙堆积与小流域土壤流失速率进行了定量研究.结果表明,1963-2007年的44年间,洼地泥沙堆积速率和堆积模数分别为0.38cm·a~(-1)和51.4t·km~(-2)·a~(-1).讨论了流域土壤地面流失与洼地泥沙堆积速率的关系,认为前者应比较接近于后者,研究小流域的土壤地面流失模数为57.1t·km~(-2)·a~(-1).研究结果表明,研究区域近几十年以来的地面水土流失轻微,土壤流失速率仅为数十t·km~(-1)·a~(-1). |
其他语种文摘
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The Karst area of Southwest China is considered as one of regions having the most fragile ecological environment in China. Soil erosion and rocky desertification have become the most severe environmental concerns in the region. However, the reliable studies about soil erosion and sediment in that region are limited and the fundamental researches lag behind the practices of governing rocky desertification for a long time. A study on sediment deposition and soil loss rates has been undertaken in a hill peak -cluster depression catchment of hilly area of Northwest Guangxi by using ~(137)Cs technique. For the period from 1963 to 2007, the average deposition rate and deposition modulus of the catchment are 0. 38cm·yr~(-1) and 51. 4t·km~(-2)·yr~(-1), respectively. The relation between the surface soil loss rate and the sediment deposition rate was also discussed. They are very close and the surface soil loss rate of the catchment is 57.1t·km~(-2)·yr~(-1). The results indicate that the surface soil loss rate was slight in the study areas. |
来源
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泥沙研究
,2010(1):17-24 【核心库】
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关键词
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桂西北
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喀斯特丘陵区
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峰丛洼地
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泥沙堆积
;
~(137)Cs示踪
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地址
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1.
中国科学院水利部成都山地灾害与环境研究所, 四川, 成都, 610041
2.
中国科学院亚热带农业生态研究所, 湖南, 长沙, 410125
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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0468-155X |
学科
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农业基础科学 |
基金
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国家973计划
;
中国科学院知识创新工程西部行动计划项目
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文献收藏号
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CSCD:3857604
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参考文献 共
30
共2页
|
1.
Ritchie J C. Application of radioactive fallout cesium-137 for measuring soil erosion and sediment accumulation rates and patterns:a review.
Journal of Environmental Quality,1990,19:215-233
|
被引
108
次
|
|
|
|
2.
Zapata F.
Handbook for the Assessment of Soil Erosion and Sedimentation Using Environmental Radionuclides,2002:3-9
|
被引
5
次
|
|
|
|
3.
Zapata F. The use of environmental radionuclides as tracers in soil erosion and sedimentation investigations:recent advances and future developments.
Soil & Tillage Research,2003,69:3-13
|
被引
30
次
|
|
|
|
4.
张信宝. ~(137)Cs法测算梁峁坡农耕地土壤侵蚀量的初探.
水土保持通报,1988,8(5):18-22
|
被引
16
次
|
|
|
|
5.
张信宝. ↑(137)Cs法测算黄土高原土壤侵蚀速率的初步研究.
地球化学,1991(3):212-218
|
被引
22
次
|
|
|
|
6.
吴永红. 陇东黄土高塬沟壑区土壤侵蚀的~(137)Cs法研究.
水土保持通报,1997,17(5):7-10
|
被引
9
次
|
|
|
|
7.
杨明义. ~(137)Cs测定法研究不同坡面土壤侵蚀空间的分布特征.
核农学报,1999,13(6):368-372
|
被引
18
次
|
|
|
|
8.
文安邦. 长江上游紫色土坡耕地土壤侵蚀~(137)Cs示踪法研究.
山地学报,2001,19(增刊):56-59
|
被引
22
次
|
|
|
|
9.
文安邦. 长江上游~(137)Cs法土壤侵蚀量研究.
水土保持学报,2002,16(6):1-3
|
被引
23
次
|
|
|
|
10.
唐翔宇. 红砂岩母质红壤侵蚀作用的~(137)Cs法初步研究.
水土保持研究,2002,9(1):121-125
|
被引
8
次
|
|
|
|
11.
王晓燕. 小流域不同土地利用方式土壤侵蚀分异的~(137)Cs示踪研究.
水土保持学报,2003,17(2):74-76,113
|
被引
9
次
|
|
|
|
12.
李豪. 桂西北倒石堆型岩溶坡地土壤的~(137)Cs分布特点.
水土保持学报,2009,23(3):42-47
|
被引
13
次
|
|
|
|
13.
Ashley G M. Determination of lacustrine sedimentation rates by radioactive fallout (~(137)Cs),Pitt Lake,British Columbia.
Canadian Journal of Earth Science,1979,16:965-970
|
被引
1
次
|
|
|
|
14.
万国江. 红枫湖沉积物0@137@Cs垂直剖面的计年特征及侵蚀示踪.
科学通报,1990,35(19):1487-1490
|
被引
51
次
|
|
|
|
15.
Albrecht A. Radiocesium dating of sediments from lakes and reservoirs of different hydrological regimes.
Environmental Science and Technology,1998,32(13):1882-1887
|
被引
1
次
|
|
|
|
16.
Ritchie J C. Dating recent reservoir sediments.
Limnology and Oceanography,1973,18:255-264
|
被引
3
次
|
|
|
|
17.
Zhang X. Use of reservoir deposits and Caesium-137 measurements to investigate the erosional response of a small drainage basin in the rolling Loess Plateau region of China.
Land Degradation & Development,1997,8(1):1-6
|
被引
15
次
|
|
|
|
18.
Ambers R K R. Using the sediment record in a western Oregon flood-control reservoir to assess the influence of storm history and logging on sediment yield.
Journal of Hydrology,2001,244:181-200
|
被引
2
次
|
|
|
|
19.
Allison M A. The importance of floodplain sedimentation for river sediment budgets and terrigenous input to the oceans:insights from the Brahmaputra-Jamuna River.
GEOLOGY,1998,26(2):175-178
|
被引
3
次
|
|
|
|
20.
Campbell B L. Caesium-137 as an indicator of geomorphic processes in a drainage basin system.
AUSTRALIAN GEOGRAPHICAL STUDIES,1982,20(1):49-64
|
被引
3
次
|
|
|
|
|