The fitness of land for a defined use is termed as land suitability. The aim of the study is to find the land suitability of for selected crops examining the indicators of land suitability. The study focuses on analysing suitability of agricultural crops in Pazhayannur Block of Thrissur District. Pazhayannur is the administrative unit (block) in the east of the Talapilli Taluk of Thrissur District in Kerala. The physical and chemical characteristics of the soils of Pazhayannur block like texture, depth, slope, erosion, pH, salinity and soil available primary nutrients (NPK), secondary nutrients and micronutrients are identified. The slope of the terrain using Cartosat-Digital Elevation Model, soil erosion, rainfall and land capability is analysed for suitability classification. Land suitability is studied for the selected crops like paddy, banana, coconut, and rubber. The weighted overlay analysis in GIS is adopted for the analysis. The parameters are weighted based on its class and its influence in suitability of specific crops. The results on agricultural land suitability for individual crops were divided into 5 categories according to the land suitability classification of the United Nations Food and Agriculture Organization (FAO). It is identified that Pazhayannur has potential for the cultivation of the selected crops. The crops show high suitability (S1) in minor proportion and moderate suitability (S2) is found in 30 percent and above and marginal suitability (S3) is noticed in lesser areas. There is few portion of land which is currently not suitable for cultivation (N1) because of its topographic limitations. The restricted areas of forest are permanently not suited for agriculture (N2).
Climate change is one of the most serious threats for sustainable agriculture development, with adverse impacts expected on the environment, human health, food security, economic activity, natural resource's management, and physical infrastructure. The aim of the study is to identify the impact of climate change on the farmers and adaptation measures. The study is carried out in the Namakkal district of Tamil Nadu which is a semi-arid region. Data is collected by primary field survey and Participatory Rural Appraisal (PRA) methods. The rainfall and temperature data for the past three decades is analysed to assess the seasonal and annual rainfall pattern. The statistical methods such as correlation and regression were used to analyse and assess the impact of climate change on the farming community. A sum of 500 small and marginal farmers were selected randomly from different panchayats in districts to collect the data. According to farmers, this problem is linked with the reduction in the number of rainy days for all seasons. It is identified there is a decreasing trend in the rainfall for the past eight years and temperature is increasing at a faster rate. The climate variability and the trends observed in the study area has direct and indirect impacts on the farming community in the region, effective adaptation measures are suggested to address the impacts of climate change.
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