Agricultural intensity and its measurement in frontier regions

Agricultural intensification is a process of raising land productivity over time through increases in inputs of one form or another on a per unit area basis. Its study is important for several reasons, many of which relate to agroforestry objectives. However, the concept of intensification often is poorly defined in the literature and existing methods and approaches to measuring agricultural intensity are problematic, making it difficult to precisely compare particular farming systems. This paper examines the concept of agricultural intensity, its relevance to efficient and sustainable land use, and the ways it can be measured. A review of existing approaches and methods for measuring intensity, such as those based on output, cropping frequency, and agrotechnologies, revealed that these feature a number of problems. Some of these problems relate simply to imprecision and inaccuracy. But others are due to the unsuitability of these approaches in the context of farming environments, such as frontiers, which are characterized by limited production data; unconventional cropping cycles; myriad production strategies, cropping patterns, and crop-fallow cycles on a single farm; and a high level of system dynamism and production variability over time. A modified approach to measuring agricultural intensity, based on fieldwork in Petén, Guatemala, is presented. This approach, which is better suited to frontier regions, employs an agricultural intensity index to help evaluate the intensity of particular farm units based on the technologies and practices used by the farmer, and the degree to which they are used.

[1]  Francisco J. Pichón,et al.  The forest conversion process: A discussion of the sustainability of predominant land uses associated with frontier expansion in the Amazon , 1996 .

[2]  J. Terborgh,et al.  Diversity and the tropical rain forest , 1991 .

[3]  E. Moran Deforestation and land use in the Brazilian Amazon , 1993 .

[4]  P. Sánchez,et al.  Alternatives to slash and burn: a pragmatic approach for mitigating tropical deforestation. , 1994 .

[5]  K. Macdicken,et al.  Agroforestry: classification and management. , 1990 .

[6]  John F. Richards,et al.  The Cambridge Encyclopedia of Human Evolution.@@@The Earth as Transformed by Human Action: Global and Regional Changes in the Biosphere Over the Past 300 Years. , 1993 .

[7]  Goran Hyden,et al.  Theory evidence study design. , 1993 .

[8]  Paula Brown,et al.  Population density agricultural intensity land tenure and group size in the New Guinea highlands. , 1976 .

[9]  Billie Turner,et al.  The concept and measure of agricultural intensity , 1978 .

[10]  Edward O. Wilson,et al.  The Current State of Biological Diversity , 1988 .

[11]  Robert Q. Hanham,et al.  Population pressure and agricultural intensity , 1977 .

[12]  Douglas L. Johnson,et al.  Land Degradation: Creation and Destruction , 1995 .

[13]  P. Nair An introduction to agroforestry. , 1993 .

[14]  A. N. Duckham,et al.  Farming Systems of the World. , 1970 .

[15]  Harold Brookfield,et al.  Melanesia: A Geographical Interpretation of an Island World. , 1972 .

[16]  D. Green Agricultural Mechanization and the Evolution of Farming Systems in Sub-Saharan Africa , 1989 .

[17]  D. Pimentel,et al.  Sustainable Agricultural Systems , 2020 .

[18]  H. Brookfield LOCAL STUDY AND COMPARATIVE METHOD: AN EXAMPLE FROM CENTRAL NEW GUINEA1 , 1962 .

[19]  M. Balick,et al.  Saving the Tropical Forests , 1989 .

[20]  M. Altieri Agroecology: A new research and development paradigm for world agriculture , 1989 .

[21]  W. Durham,et al.  Colonization, development, and deforestation in Petén, northern Guatemala. , 1995 .

[22]  M. Altieri Agroecology: The Scientific Basis Of Alternative Agriculture , 1987 .

[23]  N. Smith Strategies for sustainable agriculture in the tropics , 1990 .

[24]  J. Collins Smallholder Settlement of Tropical South America: The Social Causes of Ecological Destruction , 1986 .

[25]  N. C. Brady Alternatives to slash-and-burn : a global imperative , 1996 .

[26]  Frederic L. Pryor The Invention of the Plow , 1985, Comparative Studies in Society and History.

[27]  N. Myers,et al.  Tropical Forests: The Main Deforestation Fronts , 1993, Environmental Conservation.

[28]  J. Kangasniemi Sustainable Agriculture and the Environment in the Humid Tropics , 1993 .

[29]  Development pathways toward sustainable systems following slash-and-burn , 1996 .

[30]  H. Ruthenberg Farming systems in the tropics , 1973 .

[31]  P. Blaikie,et al.  Land Degradation and Society , 1988 .

[32]  A. J. Shriar,et al.  The Dynamics of Agricultural Intensification and Resource Conservation in the Buffer Zone of the Maya Biosphere Reserve, Petén, Guatemala , 2001 .

[33]  M. Swaminathan,et al.  The promise of agroforestry for ecological and nutritional security. , 1987 .