Assessing ecological sustainability of slash-and-burn agriculture through soil fertility indicators

Peter J A Kleinman, Ray B. Bryant, David Pimentel

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

The objective of this study was to assess the near- and long-term impact of traditional slash-and-burn agriculture on soil fertility in the village of Kembera, West Kalimantan, Indonesia. Soil fertility is widely viewed as one of the key limits to sustainable production in slash-and-burn agroecosystems. A chronosequence of sites ranging from currently cultivated swiddens to a 28-yr fallow was surveyed. Organic C, cation exchange capacity (CEC), pH, nitrate, extractable basic cations, available and total P, and extractable Al were measured as indicators of soil fertility. Inferred short-term trends point to significantly improved soil fertility conditions after burning in currently cropped swiddens relative to fallows. During the fallow, soil organic C, CEC, nitrate, total P, and extractable basic cations all manifest positive associations with fallow length after 3 to 11 yr of fallow. No declines in soil parameters were detected between plots based on the frequency of past slash-and-burn activity. Therefore, there is no evidence that slash-and-burn agriculture in Kembera has degraded these soil resources. While the results of this study suggest that slash-and-burn agriculture in Kembera has been ecologically sustainable, recent changes in socioeconomic factors influencing farmer's land-use decisions cast doubt upon the future sustainability of this agroecosystem.

Original languageEnglish (US)
Pages (from-to)122-127
Number of pages6
JournalAgronomy Journal
Volume88
Issue number2
DOIs
StatePublished - Jan 1 1996

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shifting cultivation
environmental sustainability
fallow
soil fertility
slash
cation exchange capacity
agroecosystems
cations
nitrates
socioeconomic factors
soil resources
chronosequences
Borneo
organic soils
Indonesia
villages
land use
farmers
soil

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science

Cite this

Kleinman, Peter J A ; Bryant, Ray B. ; Pimentel, David. / Assessing ecological sustainability of slash-and-burn agriculture through soil fertility indicators. In: Agronomy Journal. 1996 ; Vol. 88, No. 2. pp. 122-127.
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Assessing ecological sustainability of slash-and-burn agriculture through soil fertility indicators. / Kleinman, Peter J A; Bryant, Ray B.; Pimentel, David.

In: Agronomy Journal, Vol. 88, No. 2, 01.01.1996, p. 122-127.

Research output: Contribution to journalArticle

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