Preliminary design and application of karst rocky desertification comprehensive treatment on small watershed based on the 3S-CAD technique— A case in the Xiaoshan Small Watershed, Tiandeng County
-
摘要: 为进一步提高石漠化综合治理水平，利用3S-CAD技术对广西天等县岩溶小流域石漠化综合治理工程进行初步设计。设计以RS技术对基础地理信息进行解译，以GIS对信息进行数字化、管理、分析和输出，以GPS对样地等进行定位，以 CAD技术进行工程制图，并以小山流域石漠化综合治理设计为例，通过提取该流域的数据信息并进行空间分析，然后结合野外实地考察，确定其石漠化综合治理工程主要由封山育林、人工造林、水利水保、草食畜牧组成，其中，封山育林805hm2，人工造林46hm2，水利水保工程引水渠7462m，草食畜牧业面积330m2。工程总体布置点线面相结合，林草植被工程、水利水保工程和草食畜牧业工程分布配套，与传统的方法相比，3S-CAD技术具有设计速度快，工程布局科学合理的特点。Abstract: In order to improve rocky desertification treatment in karst areas, a preliminary design for Tiandeng County in Guangxi is made by means of the 3S-CAD technique. The design, a case in the Xiaoshan Small Watershed, comprises the RS in interpreting the basic geographic information, the GIS in digitizing, managing, analyzing and outputting the data, and GPS in locating the sample plot during field survey and the CAD in carrying on engineering drawing. According to the design and field survey, it is determined that the comprehensive treatment of rocky desertification mainly includes forest conservation (805hm2 of hillside), reforestation ( 46hm2 of land), diversion canal for water conservancy ( 7 462m long) and forage grass planting ( 330m2 of land). General arrangement of the project adopts the combination of sub-projects in small patches of land, line-formed land and overall layout on the whole area, which enables the reforestation and water conservancy as well as animal husbandry projects support with each other. Compared with the traditional methods, the 3S-CAD technique is characterized by speedy design and scientific and reasonable layout for project.
-
[1] 王世杰，李阳兵，李瑞玲.喀斯特石漠化的形成背景、演化与治理［J］.第四纪研究，2003，23(6)：657-658. [2] 苏维词. 中国西南岩溶山区石漠化的现状成因及治理的优化模式［J］.水土保持学报，2002，16(2)：31-32. [3] Han Xingrui,Zhou Youyou. Discussion on Harnessing Unit Drainage Basin in Karst Mountain Area［J］.中国岩溶，1996,15(1~2)：11-12. [4] 蒋忠诚，李先琨，曾馥平,等.岩溶峰丛洼地生态重建［M］.地质出版社，2007：12-13. [5] 胡宝清，王世杰.基于3S技术的区域喀斯特石漠化过程、机制及风险评估—以广西都安为例［M］.北京：科学出版社，2008：34-35. [6] 陈加兵，励惠国，郑达贤,等.基于DEM的福建省小流域划分研究［J］.地球信息科学，2007,9(2)：74-77. [7] 李景宜，李谢辉，傅志军,等.流域生态风险评价与洪水资源化—以陕西省渭河流域为例［M］.北京师范大学出版社，2008：27-43. [8] 周宏益，王文俊，向喜琼,等.基于GIS的喀斯特石漠化综合防治规划［J］.地球与环境，2005，33(suppl)：627-628. [9] 黄杏元，马劲松，汤勤,等.地理信息系统概论［M］.北京：高等教育出版社，2004. -
点击查看大图
计量
- 文章访问数: 1867
- HTML浏览量: 420
- PDF下载量: 1568
- 被引次数: 0
下载:
