[1]曹炜,高云飞,李智广,等.河龙区间植物措施因子定量计算[J].水土保持研究,2012,19(04):96-100.
　CAO Wei,GAO Yun-fei,LI Zhi-guang,et al.Quantitative Calculation of Biological-control Factor in Helong Region[J].Research of Soil and Water Conservation,2012,19(04):96-100.
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河龙区间植物措施因子定量计算

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 19 期数: 2012年04期 页码: 96-100 栏目: 出版日期: 2012-08-20
Title:
Quantitative Calculation of Biological-control Factor in Helong Region
作者:
曹炜1,2, 高云飞2, 李智广3, 杨胜天4, 曹勇5
1. 北京林业大学, 北京 100083;
2. 黄河水土保持生态环境监测中心, 西安 710021;
3. 水利部水土保持监测中心, 北京 100055;
4. 北京师范大学 地理学与遥感科学学院, 北京 100875;
5. 黄河水土保持绥德治理监督局, 陕西 绥德 718000
Author(s):
CAO Wei1,2, GAO Yun-fei2, LI Zhi-guang3, YANG Sheng-tian4, CAO Yong5
1. Beijing Forestry University, Beijing 100875, China;
2. Monitoring Center of Soil and Water Conservation and Ecological Environment of Yellow River, Xi’an 710021, China;
3. The Monitoring Center of Soil and Water Conservation, MWR, Beijing 100055, China;
4. School of Geography, Beijing Normal University, Beijing 100875, China;
5. Suide Governs the Surveillance Bureau of Yellow River Conversation of Soil and Water, Suide, Shaanxi 718000, China
关键词:
河龙区间; 植物措施因子; 植被覆盖度; 降雨侵蚀力
Keywords:
Helong region; biological-control factor; vegetation coverage; rainfall erosivity
分类号:
Q948
摘要:
为解决区域植物措施（B）因子的计算问题，以河龙区间为研究区，通过计算半月降雨侵蚀力确定了主要侵蚀性降雨季，应用MODIS NDVI产品提取了半月植被覆盖度，得到侵蚀性降雨季植被覆盖度。根据已有研究成果，结合土地利用，计算了区域B因子，应用小区观测数据对植被覆盖度反演结果进行了检验。结果表明：反演与实测的植被覆盖度季节变化曲线变化趋势、值域范围基本一致。7—8月为主要侵蚀性降雨季，平均植被覆盖度达到57.23%，B因子平均值为0.345。年均降雨量与植被覆盖度成正比关系，与B因子成反比。该文采用的植物措施因子计算方法为区域土壤侵蚀监测提供参考。
Abstract:
In order to calculate the regional biological-control (B) factor, Helong region was taken as the study area. Using MODIS NDVI product, the vegetation coverage per half month was extracted, the erosive rainfall season was determined, then the erosive rainfall season vegetation coverage was calculated. Based on existing research results and land use information, the regional factor B was calculated, and then the inversion vegetation coverage with the data of observations in unit plot was retrieved. The results showed that the inversion and observed results of the vegetation coverage of seasonal variation curve was basically the same in terms of the trend and value range. As the main erosive rainfall season appeared during July and August, the average vegetation coverage reached 57.23%, the average factor B was 0.345. The average annual rainfall was proportional to the vegetation coverage, and was inversely proportional to the B factor. In this paper, the method for calculation of biological-control factor can be used in regional soil erosion monitoring.

参考文献/References:

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备注/Memo

收稿日期:2012-4-10;修回日期:2012-5-3
基金项目:中华人民共和国国务院第一次全国水利普查项目
作者简介:曹炜（1967- ），男，陕西榆林市人，博士研究生，高级工程师，主要从事水土保持监测和规划研究。E-mail：hhcaowei@126.com。
通讯作者:杨胜天（1965- ），男（彝族），博士，教授，主要从事水文水资源遥感、环境遥感和地理信息系统研究。E-mail：yangshengtian@bnu.edu.cn。

更新日期/Last Update: 1900-01-01