雨水收集用于农业发展,使用多重影响因子和模糊覆盖技术
Xiangtian Zheng1, Abid Sarwar2, Fakhrul Islam3
1Nanjing Institute of Technology, No.1 Hongjing Avenue, Jiangning Science Park, YKJ202118, Nanjing, 211167, China; School of Geography and Marine Science, Nanjing University, Xianlin Avenue No.163, Nanjing, 210023, China.
Environmental research
|September 24, 2023
概括
雨水收集 (RWH) 可以促进水资源稀缺地区的作物生产. 本研究使用多影响因子和模糊叠加方法确定卡拉克区的最佳RWH地点,以应对农业用水短缺问题.
科学领域:
- 环境科学 环境科学
- 农业科学 农业科学
- 地理信息系统 (GIS) 是指地理信息系统.
背景情况:
- 缺水严重限制了农作物生产,特别是在像开伯尔巴赫图肯瓦这样的山区.
- 这些地区的雨水排放代表了失去的资源,这些资源可以用于农业.
- 雨水收集 (RWH) 为缓解水资源短缺和提高农业产量提供了可行的解决方案.
研究的目的:
- 在卡拉克区确定和绘制雨水收集 (RWH) 合适的地点,以提高农业生产力.
- 在RWH选址时应用多重影响因子 (MIF) 和模糊覆盖技术进行空间分析.
- 为决策者提供数据驱动的见解,以开发RWH基础设施和解决水资源短缺问题.
主要方法:
- 采用多重影响因素 (MIF) 模型,结合了七个因素:土地使用,土地覆盖面 (LULC),斜率,地质,土壤,降雨量,线条和排水密度.
- 采用模糊覆盖分析来补充MIF模型来评估RWH网站的适用性.
- 整合了各种空间数据层,为卡拉克区创建了一个全面的RWH适用性地图.
主要成果:
- 权重重叠分析 (MIF) 显示,有很高 (167.96平方公里) 和很高 (874.17平方公里) 的RWH.潜在区域.
- 模糊覆盖分析确定了257.53平方公里作为非常高潜力和896.56平方公里作为高潜力RWH站点.
- 该研究生成了一个详细的适合性地图,将区域分为非常高,高,中等和低RWH潜在区域.
结论:
- 研究成功地确定了卡拉克区雨水收集结构的最佳位置.
- 这些发现强调了MIF和模糊覆盖技术在RWH空间适应性分析中的有效性.
- 结果将指导政策制定者实施有效的RWH战略,以提高农业的性和克服水资源短缺.
相关概念视频
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
63
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
63
Design Example: Design of an Irrigation Channel
124
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
124
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
Adaptations that Reduce Water Loss
25.7K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.7K
Multiple Regression
3.0K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
3.0K
Manipulation and Analysis
39
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
39


