Fiji Sigatoka MCDA-GIS Data

The research objective of this paper was to present a set of methods that use a combination of GIS and MCDA to evaluate land suitability for a selection of target crops for agroforestry spatial planning. The first objective is to show how commonly available edaphic and environmental cultivation criteria for agroforestry crops (through websites such as https://agroforestry.org/) can be used within a GIS to identify the most suitable areas for target crops. Because suitable land areas for target crops overlap, there is the issue of deciding which locations are best suited to which crops. The second objective is to present ways of dealing with the problem of deciding where a suite of target crops should be planted. We first look at a method that deals with this problem using an equitable distribution approach—one that distributes the crops to locations based on the proportion of suitable land available to each crop. We then examine a method that uses expert knowledge and MCDA to quantify the relative benefits of each crop and determines the spatial distribution of crops most suitable for different agroforestry strategic goals.

In this repository you will find the ArcGIS Pro v 2.5 project with accompanying GIS and and models for our case study. In addition you will find the Excel tables used for AHP calculations.

Land Suitability model: The default cultivation parameters are for Tropical almond. See the manuscript for other crop parameters.

Weighted Maximum model: The default weights are for the Economic benefit. See the manuscript for AHP weightings of other benefits.

See README.txt file for more details

本论文的研究目标旨在提出一套结合地理信息系统（GIS）与多准则决策分析（MCDA）的方法，以评估适合多种目标作物进行农林复合空间规划的土地适宜性。首先，目标在于展示如何利用通常可获得的适用于农林作物（如通过https://agroforestry.org/等网站）的土壤和环境栽培标准，在GIS中识别针对目标作物的最适宜区域。鉴于目标作物的适宜土地区域存在重叠，存在决定哪些地点更适合哪些作物的问题。其次，目标在于提出解决确定一系列目标作物种植位置问题的方法。我们首先探讨了一种采用公平分配方法处理该问题的方法——即根据每种作物可利用的适宜土地比例将作物分配到各个地点。接着，我们研究了一种利用专家知识和MCDA量化每种作物的相对效益，并确定适合不同农林战略目标的最适宜作物空间分布的方法。在本存储库中，您将找到用于我们的案例研究的ArcGIS Pro v 2.5项目及其伴随的GIS和模型。此外，您还将找到用于AHP计算的Excel表格。土地适宜性模型：默认的栽培参数适用于热带杏仁。关于其他作物的参数，请参阅论文。加权最大模型：默认权重适用于经济效益。关于其他效益的AHP权重，请参阅论文。更多详细信息，请参阅README.txt文件。