言語 |
英語
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著者 |
AFLIZAR
Faculty of Life and Environmental Science, Shimane University
SAIDI, Amirizal
Faculty of Agriculture, Andalas University
HUSNAIN
Faculty of Life and Environmental Science, Shimane University
ISMAWARDI
National Polytechnic of Agriculture Payakumbuh
ISTIJONO, Bambang
National Polytechnic of Agriculture Payakumbuh
HARMAILIS
Faculty of Agriculture, Andalas University
SOMURA, Hiroaki
Faculty of Life and Environmental Science, Shimane University
WAKATSUKI, Toshiyuki
Faculty of Agriculture, Kinki University
|
内容記述(抄録等) | In the present study, we provide a land use planning recommendation for land conservation and agro-economical production for the Sumani watershed in West Sumatra, Indonesia, where intensive agriculture has long been practiced. We based our land conservation management recommendations on soil erosion rates using the Universal Soil Loss Equation (USLE) determined in our previous paper (Aflizar et al. 2010). Our land use planning vision is to maintain current land use practices as much as possible. In sites where the soil erosion rate remains less than the tolerable erosion rate (TER) (14 Mg ha-1 y-1; a rate set by the Indonesian government) land use was not altered. When soil erosion rates exceeded the TER, we selected a new land use with a smaller CP-factor than the former land practice to reduce soil erosion rates. The recommended land use planning resulted in a 16.1% change distributed as follows: vegetable gardens with terracing (10%), vegetable gardens with contour cropping (1.8%) and sawah (4.3%). The changes made in the recommended land use plans could reduce soil erosion rates by 88%, a reduction from 58.9 to 7.1 Mg ha-1 y-1, with a total profit loss in agricultural production of only 3.9% in the Sumani watershed.
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主題 | recommended land use
soil erosion
USLE
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掲載誌名 |
Tropics
|
巻 | 19
|
号 | 1
|
開始ページ | 43
|
終了ページ | 51
|
ISSN | 0917-415X
|
ISSN(Online) | 1882-5729
|
発行日 | 2010-11-01
|
DOI | |
出版者 | 日本熱帯生態学会
|
出版者ヨミ | ニホン ネッタイ セイタイ ガッカイ
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出版者別表記 | The Japan Society of Tropical Ecology
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資料タイプ |
学術雑誌論文
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業績ID | e11757
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部局 |
生物資源科学部
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