INTRODUCTION 



Page 



HISTORY V 



USES OF THE CENSUS V 



AUTHORITY AND AREA COVERED V 



FARM DEFINITION V 



COMPARABILITY OF DATA V 



TABULAR PRESENTATION V 



CENSUS DISCLOSURE RULES V 



DEFINITIONS AND EXPLANATIONS VI 



DOLLAR VALUES VI 



INVENTORIES, PRODUCTION, AND SALES DATA VI 



ABBREVIATIONS AND SYMBOLS VI 



HISTORY 



The 1987 census is the 11th census of agriculture of 

 Guam. The first agriculture census was taken in 1920 as 

 part of the decennial census, a practice that continued 

 every 1 years through 1 960. The 1 964 Census of Agri- 

 culture was the first quinquennial (5-year) census to be 

 taken in Guam. In 1976, Congress authorized the census 

 of agriculture to be taken for 1 978 and 1 982 to adjust the 

 data reference year to coincide with the 1 982 Economic 

 Censuses. After 1 982, the agriculture census reverted to a 

 5-year cycle and is taken covering years ending in "2" and 



tfy II 



Governor or a representative from his/her staff to act as 

 census supervisor in accordance with a Memorandum of 

 Agreement prescribed or approved by the Director of the 

 Bureau of the Census. 



FARM DEFINITION 



The data presented in this report relate to places 

 qualifying as farms for census purposes. For the 1987 

 Census of Agriculture in Guam, a farm was defined as any 

 place from which $100 or more of agricultural products 

 were sold or normally would have been sold during the 

 census year. This is a definitional change from 1 982. For 

 1 982, a farm was defined as a place on which any crop, 

 vegetable, or fruit was harvested or gathered during 1 982, 

 or on which there was any livestock, or 1 5 poultry or more 

 at the time of enumeration. 



COMPARABILITY OF DATA 



Data comparability has been maintained by revising the 

 historical data to conform to the new farm definition. 

 Appendix B of this publication also has 1987 data pre- 

 sented using both the old and new definitions for major 

 items requested in the 1 987 Census of Agriculture. 



USES OF THE CENSUS 



The census of agriculture is the recognized source of 

 statistics about Guam's agricultural production and the 

 only source of consistent, comparable data at the district 

 level. Census statistics are used to measure agricultural 

 production and to identify trends in an ever changing 

 agricultural sector. Many local programs use census data 

 as a benchmark for designing and evaluating surveys. 

 Private industry uses census statistics to provide a more 

 effective production and distribution system for the agricul- 

 tural community. 



TABULAR PRESENTATION 



Island data— Tables 1 through 9 show detailed island 

 level data accompanied by historical data from the previ- 

 ous census. Tables 23 through 26 provide 1 987 island data 

 cross tabulated by tenure of operator, age of operator, size 

 of farm, and value of agricultural products sold. 



Election district data — Selected data items are pre- 

 sented by election districts in tables 1 through 22, which 

 includes general data for all districts. 



AUTHORITY AND AREA COVERED 



CENSUS DISCLOSURE RULES 



The 1987 Census of Agriculture was taken in accor- 

 dance with the provisions of Title 13, United States Code. 

 Sections 142(a) and 191 provide for a census of agricul- 

 ture every 5 years in each State, the District of Columbia, 

 Puerto Rico, Guam, and the Virgin Islands of the United 

 States. The census data for Guam may be collected by the 



In keeping with the provisions of Title 13, United States 

 Code, no data are published that would disclose the 

 operations of an individual farm. However, the number of 

 farms in a given size category or other classification is not 

 considered a disclosure, so this information may be given 

 even though other information is withheld. 



1987 CENSUS OF AGRICULTURE 



INTRODUCTION V 



