scholarly journals Optimization of the Weighted Linear Combination Method for Agricultural Land Suitability Evaluation Considering Current Land Use and Regional Differences

2020 ◽  
Vol 12 (23) ◽  
pp. 10134
Author(s):  
Shouqiang Yin ◽  
Jing Li ◽  
Jiaxin Liang ◽  
Kejing Jia ◽  
Zhen Yang ◽  
...  
Keyword(s):  
Land Use ◽  
Regional Differences ◽  
Agricultural Land ◽  
Land Suitability ◽  
Spatial Accessibility ◽  
Combination Method ◽  
Soil Conditions ◽  
Weighted Linear Combination ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation

This study was aimed at optimizing the weighted linear combination method (WLC) for agricultural land suitability evaluation (ALSE) through indicator selection, weight determination, and classification of overall suitability scores in Handan, China. Handan is a representative research area with distinct agricultural advantages and regional differences in land use, where the expansion of construction land has led to a rapid decrease of agricultural land in recent years. Natural factors (topography, climate, soil conditions, and vegetation cover) and socioeconomic factors (land use and spatial accessibility) were selected to establish a more comprehensive evaluation system. The index weight was calculated by the mutual information between index suitability and current land use. The consistency index was used to identify the boundary value dividing the overall suitability score into a suitable category and unsuitable category in each sub-region. The results demonstrated that the optimized WLC-ALSE model outperformed the comparison models using conventional methods in terms of the consistency between the evaluation results and current land use. Owing to the increasing limitations of topography, soil conditions, spatial accessibility, and land use, the proportions of suitable land in Zone 1, Zone 2, and Zone 3 were 77.4%, 67.5%, and 30.9%, respectively. The agricultural land unsuitable for agriculture (14.5%) was less than non-agricultural land suitable for agriculture (7.4%), indicating that agricultural land had low growth potential in Handan. Finally, specific recommendations were made to improve agricultural land suitability, alleviate land use conflicts, and further optimize the model. The results can provide effective guidance for WLC-ALSE and land use decision-making for sustainable agriculture.

scholarly journals Developing a User Friendly Decision Tool for Agricultural Land Use Allocation at a Regional Scale

2017 ◽  
Vol 11 (5) ◽  
pp. 11 ◽  
Author(s):  
Sumbangan Baja ◽  
Samsu Arif ◽  
Risma Neswati
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Agricultural Land ◽  
Land Suitability ◽  
Soil Survey ◽  
Agricultural Land Use ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation ◽  
Land Use Allocation ◽  
User Friendly

Agricultural land use planning should always be guided by a reliable tool to ensure effective decision making in the allocation of land use and activities. The primary aim of this study is to develop a user friendly system on a spatial basis for agricultural land suitability evaluation of four groups of agriculture commodities, including food crops, horticultural crops, perennial (plantation) crops, grazing, and tambak (fish ponds) to guide land use planning. The procedure used is as follows: (i) conducting soil survey based on generated land mapping units; (ii) developing soil database in GIS; and (iii) designing a user friendly system. The data bases of the study were derived from satellite imagery, digital topographic map, soil characteristics at reconnaissance scale, as well as climate data. Land suitability evaluation in this study uses the FAO method. The study produces a spatial based decision support tool called SUFIG-Wilkom that can give decision makers sets of information interactively for land use allocation purposes.This user friendly system is also amenable to various operations in a vector GIS, so that the system may accommodate possible additional assessment of other land use types.

Qualitative land suitability evaluation for the growth of onion, potato, maize, and alfalfa on soils of the Khalat pushan research station

Biologia ◽  
2006 ◽  
Vol 61 (19) ◽  
Author(s):  
Ali Jafarzadeh ◽  
Goldasteh Abbasi
Keyword(s):  
Land Use ◽  
Agricultural Land ◽  
Research Work ◽  
Land Suitability ◽  
Research Station ◽  
Square Root ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation ◽  
Limitation Method ◽  
Square Root Method

AbstractAn area suitability assessment for crop production requires a considerable effort, which can provide necessary information for optimum land use. Agricultural land use has benefited significantly from the use of suitability systems in recent years. These systems have jointly showed their capabilities in the evaluation and assessment of suitable sites for a variety of crops.In the present study and research work land suitability evaluation (qualitative classification) has been determined for onion, potato, maize and alfalfa in Khalat pushan research station of Tabriz University in East Azerbaijan by using of Simple Limitation method (SLM), Limitation Method regarding Number and Intensity (LMNI) and parametric (PM) such as square root and storie methods. Climate, soil and landscape qualities and their characteristics which most influence crop suitability have been combined by the adopted methodology. In this study economic factors have been excluded and moderate management has been assumed. The use of different methods showed that the most important limitation factors are climate, lime, pH, OM, texture and gravel alone or in combinations. Evaluation indicates that SLM and LMNI show similar suitability classes, which confirms the previous findings for several crops by other researchers. However, in many cases the use of parametric methods, especially the square root method revealed to be more realistic in showing the distinguished suitability classes in many cases. Therefore, based on the obtained results (especially by the square root method), the cultivation of alfalfa, potato and onion can be recommended, except for soil profile 2, which is not suitable (N2) for onion.

scholarly journals Climate, soil and land-use based land suitability evaluation for oil palm production in Ghana

2016 ◽  
Vol 81 ◽  
pp. 1-14 ◽  
Author(s):  
Tiemen Rhebergen ◽  
Thomas Fairhurst ◽  
Shamie Zingore ◽  
Myles Fisher ◽  
Thomas Oberthür ◽  
...  
Keyword(s):  
Land Use ◽  
Oil Palm ◽  
Land Suitability ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation

scholarly journals Karakteristik Lahan untuk Kesesuaian Tanaman Apel (Malus sylvestris Mill.) di Kecamatan Sindang Dataran, Kabupaten Rejang Lebong, Bengkulu

2021 ◽  
Vol 31 (1) ◽  
pp. 41
Author(s):  
NFN Nurmegawati ◽  
Yudi Sastro ◽  
NFN Yahumri ◽  
Jhon Firison ◽  
Lina Ivanti ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Climatic Factors ◽  
Land Suitability ◽  
Soil Conditions ◽  
Limiting Factor ◽  
Agricultural Commodity ◽  
Suitability Evaluation ◽  
Land Suitability Evaluation ◽  
Malus Sylvestris ◽  
Development Area

<p><strong>[<em>Land Characteristics for Suitability of Apples</em> (<em>Malus sylvestris</em> Mill.) <em>in Sindang Dataran District, Rejang Lebong Regency, Bengkulu</em>]</strong></p><p><strong><br /></strong></p><p>Penilaian kesesuaian lahan merupakan tahap pertama dan penting dalam usaha pengembangan suatu komoditas pertanian. Kecamatan Sindang Dataran, Kabupaten Rejang Lebong merupakan salah satu lokasi yang direncanakan menjadi daerah pengembangan apel dengan temperatur udara mencapai 23oC dan ketinggian tempat bervariasi antara 785 – 1.129 lebih m dpl. dengan kondisi tanah yang cukup subur. Penelitian bertujuan untuk menentukan kelas kesesuaian lahan untuk tanaman apel. Penelitian dilakukan dengan metode survey dan observasi. Parameter yang diamati meliputi karakteristik lahan dan syarat tumbuh tanaman apel. Evaluasi kesesuaian lahan yang digunakan ialah kesesuaian lahan kualitatif, yaitu yang hanya didasarkan kondisi fisik lahan. Metode evaluasi kesesuaian lahan dilakukan dengan mengikuti prosedur dari FAO (1976), yaitu evaluasi kesesuaian lahan ini dilakukan dengan cara mencocokkan (matching) data antara karakteristik lahan dengan persyaratan tumbuh tanaman apel dan hasilnya didasarkan pada nilai terkecil (hukum minimum) sebagai keputusan kesesuaian lahan. Hasil penelitian menunjukkan bahwa kesesuaian lahan tanaman apel yang berada di Kecamatan Sindang Dataran, Kabupaten Rejang Lebong, dari faktor iklim termasuk S2 (cukup sesuai), sementara dari faktor ketersediaan hara termasuk S3 (sesuai marjinal). Hal yang menjadi faktor pembatas adalah rendahnya P tersedia, tetapi dapat diatasi dengan pemupukan sehingga dapat naik kelas menjadi S2. Melalui usaha pemupukan P maka Kecamatan Sindang Dataran memiliki potensi sebagai daerah pengembangan tanaman apel yang cukup sesuai.</p><p><strong>Keywords</strong></p><p>Karakteristik lahan; Kesesuaian lahan untuk tanaman apel; Malus sylvertris Mill</p><p><strong>Abstract</strong></p><p>Land suitability assessment is the first and important stage in the development of an agricultural commodity. Sindang Dataran District, Rejang Lebong Regency is one of the locations that is planned to be an apple development area with air temperatures reaching 23oC and altitude varying between 785–1,129 meters above sea level with fairly fertile soil conditions. The aim of the study was to determine the land suitability class for apple plants. The research was conducted using survey and observation methods. Parameters observed included land characteristics and growing conditions for apple plants. Land suitability evaluation used qualitative land suitability, which is only based on the physical condition of the land. The land suitability evaluation method is carried out by following the procedure from FAO (1976), namely the evaluation of land suitability is carried out by matching data between land characteristics and the requirements for growing apples and the results are based on the smallest value (minimum law) as a land suitability decision. The results showed that the suitability of the land for apple crops in Sindang Dataran District, Rejang Lebong Regency, from climatic factors including S2 (quite suitable), while from nutrient availability factors including S3 (marginal according to). The limiting factor is the low available P, but it can be overcome by fertilization so that it can be promoted to S2. Through P fertilization efforts, Sindang Dataran District has the potential as a suitable apple crop development area.</p>

Comparison of Boolean and Fuzzy Classification Methods in Land Suitability Analysis by Using Geographical Information Systems

1992 ◽  
Vol 24 (4) ◽  
pp. 497-516 ◽  
Author(s):  
G B Hall ◽  
F Wang ◽  
Subaryono
Keyword(s):  
Land Use ◽  
Geographical Information Systems ◽  
Agricultural Land ◽  
Land Suitability ◽  
Fuzzy Classification ◽  
Geographical Information ◽  
Suitability Analysis ◽  
Suitability Evaluation ◽  
Fuzzy Methods ◽  
Gis Software

In this paper the information content of Boolean and fuzzy-set-based approaches to the problem of analyzing land suitability for agriculture within a geographical information system (GIS) is assessed. First, the two approaches to this problem are stated and formalized in the context of land-suitability evaluation. A database comprising 642 unique areas, 7 land qualities, 13 land characteristics, and 2 crop types is defined and described. Land-use suitability ratings for two crops, wetland rice and soybean, are generated by using Boolean and fuzzy methods. Results produced by the two methods are compared in terms of their usefulness for agricultural land-use plannning. The ARC/INFO vector-based GIS software package is utilized. The study area is the Cimanuk watershed in northwest Java, Indonesia.

Sign in / Sign up

Export Citation Format

Share Document