Results 291 to 300 of about 3,678,454 (342)

Farming the Rock: A biogeochemical perspective on intensive agriculture in Polynesia

Journal of Pacific Archaeology, 2014
In pre-contact Hawai‘i, large and intensive rainfed agricultural systems were established only where ongoing weathering of basalt-derived minerals could provide a sustained source of nutrients to crop plants. We demonstrated that the high-elevation, high-
P. Vitousek, O. Chadwick, S. Hotchkiss, T. Ladefoged, C. Stevenson   +4 more
semanticscholar   +1 more source

Resource Efficiency in Intensive Agricultural District Programme and Non-Intensive Agricultural District Programme Farms

Madras Agricultural Journal, 1967
The main object of the paper is to ascertain with precision the factors which are discriminating or by means of which it is possible to place a holding under Intensive Agricultural District Programme or non-Intensive Agricultural District Programme farms. The second object is to study the efficiency with which the factors are used in both the areas.
SRINIVASAN R, SUBRAMANIAN S.R
openaire   +1 more source

Intensive Agricultural Landscapes of Oceania

Journal of Cultural Geography, 2002
Pacific Islanders have adapted over time to a wide range of social and environmental conditions. Subsistence regimes include broad-based fishing and gathering along with horticulture, particularly the cultivation of staple tubers. Agricultural ecosystems on many islands manifest elaborate expressions of greater inputs of labor or the necessity to ...
openaire   +2 more sources

Agricultural Intensity and Its Regionalization

Yearbook of the Association of Pacific Coast Geographers, 1960
Perhaps the most basic theme of human history has been man's increasing need for food and the effort he has expended in producing it. The intensity of this effort and its wide variance over the earth has been increasingly studied by both economists and geographers.
openaire   +1 more source

Agricultural Families and Structural Adaptation in Intensive Venetian Agriculture

1987
1987 European Congress of Agricultural Economists, Balatonszeplak ...
Berni, P., Begalli, D., Berni, P., Begalli, D.   +3 more
openaire   +1 more source

Climate change exacerbates the environmental impacts of agriculture

Science
Agriculture’s global environmental impacts are widely expected to continue expanding, driven by population and economic growth and dietary changes. This Review highlights climate change as an additional amplifier of agriculture’s environmental impacts ...
Yi Yang, David Tilman, Zhenong Jin, Peter Smith, Christopher B. Barrett, Yong-guan Zhu, J. Burney, P. D’Odorico, P. Fantke, Joseph E. Fargione, J. Finlay, M. Rulli, Lindsey L. Sloat, Kees Jan van Groenigen, Paul C. West, Lewis Ziska, A. Michalak, David B. Lobell   +17 more
semanticscholar   +1 more source

Assessment of intensive agriculture on water quality in the Culiacan River basin, Sinaloa, Mexico

Environmental science and pollution research international, 2020
K. Mendivil-García, L. Amábilis-Sosa, A. Rodriguez-mata, J. G. Rangel‐Peraza, V. Gonzalez-Huitron, C. I. G. Cedillo-Herrera   +5 more
semanticscholar   +1 more source

Intensive Agriculture

2020
Mark Q. Sutton, E. N. Anderson
openaire   +1 more source

Extensive and Intensive Agricultural Supply Response

Annual Review of Resource Economics, 2015
Interest in agricultural supply response increased dramatically after model predictions of land use change were used to estimate biofuel greenhouse gas emissions. The models divide crop response into higher yield—the intensive margin—or more land—the extensive margin. Input adjustments are assumed to drive yield response. But most yield changes result
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Orientation and intensity of Norwegian agriculture

Norsk Geografisk Tidsskrift - Norwegian Journal of Geography, 1975
Nordgard, A. 1975. Orientation and intensity of Norwegian agriculture. Norsk geogr. Tidsskr. 29, 169–220. The study is based on commune data from the agricultural censuses published every ten years. Orientation of agriculture is expressed as the share of the gross value of production of six branches of activity – cattle, sheep and goats, pigs and ...
openaire   +1 more source