Comprehensive Suitability Evaluation of Tea Crops Using GIS and a Modified Land Ecological Suitability Evaluation Model

Abstract Tea ( Camellia sinensis ) is one of the most valuable cash crops in southern China; however, the planting distribution of tea crops is not optimal and the production and cultivation regions of tea crops are restricted by law and custom. In order to evaluate the suitability of tea crops in Zhejiang Province, the annual mean temperature, the annual accumulated temperature above 10 °C, the frequency of extremely low temperature below −13 °C, the mean humidity from April to October, slope, aspect, altitude, soil type, and soil texture were selected from climate, topography, and soil factors as factors for land ecological evaluation by the Delphi method based on the ecological characteristics of tea crops. These nine factors were quantitatively analyzed using a geographic information system (GIS). The grey relational analysis (GRA) was combined with the analytic hierarchy process (AHP) to address the uncertainties during the process of evaluating the traditional land ecological suitability, and a modified land ecological suitability evaluation (LESE) model was built. Based on the land-use map of Zhejiang Province, the regions that were completely unsuitable for tea cultivation in the province were eliminated and then the spatial distribution of the ecological suitability of tea crops was generated using the modified LESE model and GIS. The results demonstrated that the highly, moderately, and non-suitable regions for the cultivation of tea crops in Zhejiang Province were 27 552.66, 42 724.64, and 26 507.97 km 2 , and accounted for 28.47%, 44.14%, and 27.39% of the total evaluation area, respectively. Validation of the method showed a high degree of coincidence with the current planting distribution of tea crops in Zhejiang Province. The modified LESE model combined with GIS could be useful in quickly and accurately evaluating the land ecological suitability of tea crops, providing a scientific basis for the rational distribution of tea crops and acting as a reference to land policy makers and land use planners.

[1]  The technological system of production suitability assessment of grassland resources. , 2000 .

[2]  Frederick R. Steiner,et al.  An approach for greenway suitability analysis , 1998 .

[3]  Guoshun Liu,et al.  Comprehensive Evaluation of Tobacco Ecological Suitability of Henan Province Based on GIS , 2010 .

[4]  P. Rietveld,et al.  Multicriteria analysis and geographical information systems: an application to agricultural land use in the netherlands , 1990 .

[5]  J. Radke,et al.  An Application of Linear Programming and Geographic Information Systems: Cropland Allocation in Antigua , 1992 .

[6]  David A. Bennett,et al.  A Framework for the Integration of Geographical Information Systems and Modelbase Management , 1997, Int. J. Geogr. Inf. Sci..

[7]  Tal Svoray,et al.  Urban land-use allocation in a Mediterranean ecotone: Habitat Heterogeneity Model incorporated in a GIS using a multi-criteria mechanism , 2005 .

[8]  I. Mcharg.  Design With Nature , 1969 .

[9]  Masatoshi Kitaoka,et al.  Circular Data Analysis of Periodic Time Series Data Using Grey Theory , 2007 .

[10]  T. Saaty,et al.  The Analytic Hierarchy Process , 1985 .

[11]  T. Ahamed,et al.  GIS-based fuzzy membership model for crop-land suitability analysis , 2000 .

[12]  P. Owuor,et al.  Influence of region of production on clonal black tea chemical characteristics , 2008 .

[13]  Guangming Zeng,et al.  Spatial analyzing system for urban land-use management based on GIS and multi-criteria assessment modeling , 2008 .

[14]  G. J. Tyler.  AN APPLICATION OF LINEAR PROGRAMMING , 1960 .

[15]  MICHAEL G. COLLINS,et al.  Land-Use Suitability Analysis in the United States: Historical Development and Promising Technological Achievements , 2001, Environmental management.

[16]  Joan Marull,et al.  A Land Suitability Index for Strategic Environmental Assessment in metropolitan areas , 2007 .

[17]  N. Nakagoshi,et al.  Application of land suitability analysis and landscape ecology to urban greenspace planning in Hanoi, Vietnam , 2008 .

[18]  L. D. Hopkins,et al.  Methods for Generating Land Suitability Maps : A Comparative Evaluation , 2013 .

[19]  D. Raes,et al.  Agro-climatic suitability mapping for crop production in the Bolivian Altiplano: A case study for quinoa , 2006 .

[20]  S. Kalogirou.  Expert systems and GIS: an application of land suitability evaluation , 2002 .

[21]  E. Ranst,et al.  Environmental assessment tools for multi-scale land resources information systems: A case study of Rwanda , 2006 .

[22]  P. Owuor,et al.  Influence of region of production on relative clonal plain tea quality parameters in Kenya. , 2010 .

[23]  Harry J. P. Timmermans,et al.  Modelling land-use decisions under conditions of uncertainty , 2007, Comput. Environ. Urban Syst..

[24]  E. Farnworth,et al.  Tea, Kombucha, and health: a review. , 2000 .

[25]  Jun Li,et al.  A GIS-based approach for estimating spatial distribution of seasonal temperature in Zhejiang Province, China , 2006 .

[26]  R. Brink,et al.  A framework for land evaluation , 1977 .

[27]  Chih-Hung Tsai,et al.  Applying Grey Relational Analysis to the Vender Evaluation Model , 2003 .

[28]  Mathias J. M. Römkens,et al.  Land Suitability Assessment and Land Use Change in Fujian Province, China * * Project supported by t , 2007 .