An approach to land‐use planning in a hilly watershed using geographical information system
An approach to land‐use planning in a hilly watershed using geographical information system
复制标题
利用地理信息系统进行丘陵流域土地利用规划的方法
DOI：
10.1002/ldr.3400060305
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
N. Krishna
中科院分区：
文献类型：
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作者：
J. Adinarayana;N. Krishna
一个区域的生态-社会-经济平衡可以通过适当的土地使用规划来保持，特别是在降雨造成的侵蚀是一个永远存在的威胁的丘陵流域。本文介绍了一种方法，编制一个面向治疗的土地利用规划方案，丘陵流域使用地理信息系统（GIS）。基于遥感的土壤地形图和数字高程模型（DEM）分别是土壤深度和坡度等级的来源，是GIS分析的信息数据库。地理信息系统被用来整合这些数据库，并提供数据处理工具。Sheng和Stennett（1975）为丘陵流域制定了一套基于知识的规则，并根据当地的土地利用模式进行了修改。这些规则被用来操纵数据库，并允许建立一个可持续的土地利用系统的流域适当的水土保持措施。这一生物工程计划将是防止土壤侵蚀和其他环境威胁的保障。在流域进行的优先子流域划定调查表明，泥沙产量指数值的显着变化，这需要认真的保护规划的情况下，高和非常高的优先子流域。
The eco-socio-economic balance of a region can be preserved by proper land-use planning, particularly in hilly watersheds where erosion caused by rainfall is an ever-present threat. This paper describes a methodology developed to compile a treatment-oriented land-use planning scheme for a hilly watershed using a geographical information system (GIS). A remote sensing based physiographic soils map and a digital elevation model (DEM) are the sources of soil depth and slope steepness classes, respectively, and are the information databases for GIS analysis. The GIS was used to integrate these databases and provide tools for manipulation of the data. A set of knowledge-based rules was formed from the classification scheme formulated by Sheng and Stennett (1975) for hilly watersheds, modified to allow for the local land-use patterns. These rules were used to manipulate the databases and allow the establishment of a sustained land-use system in the watershed with proper soil and water conservation measures. This biological engineering scheme would be a safeguard against soil erosion and other environmental threats. A priority sub-watersheds delineation survey conducted in the watershed indicates significant variation in the silt yield index values, which calls for conservation planning in earnest in cases of high and very high priority sub-watersheds.