ダウンロード数 : ?
言語
英語
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.
主題
recommended land use
soil erosion
USLE
掲載誌名
Tropics
19
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
出版者別表記
The Japan Society of Tropical Ecology
資料タイプ
学術雑誌論文
業績ID
e11757
部局
生物資源科学部