Article

Cropland management versus dredging: An economic analysis of reservoir sedimentmanagement

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Smith C, Williams J, Nejadhashemi AP, Woznicki S, Leatherman J. 2013. Cropland management versus dredging: An economic analysis of reservoir sediment management. Lake Reserv Manage. 29:151–164.
Erosion of agricultural cropland has been identified as a major source of sediment accumulating in water reservoirs. Emphasis is increasingly on finding the most cost-effective ways to control soil erosion to reduce reservoir sedimentation. In this study, biophysical and economic models for the Tuttle Creek Lake watershed in northeastern Kansas were integrated to determine if implementation of alternative cropland management strategies to reduce reservoir sediment are more cost-effective than dredging. In the Tuttle Creek Lake watershed, we found that if the marginal costs of agricultural best management practices (BMP) implementation become >$6.90/t of sediment reduction, then dredging becomes the economically preferred alternative. Meeting this cost requires that BMP in the form of filter strips and no-till cultivation are implemented in a targeted, cost-effective manner, not in a random pattern of voluntary adoption that may characterize BMP adoption in some watersheds. Although reservoir dredging is clearly expensive, our results show that it is not entirely cost-prohibitive on an annualized per unit basis. [Supplementary materials are available for this article. Go to the publisher’s online edition of Lake and Reservoir Management for the following free supplemental resources: definitions of costs and present value] Key words: cropland management, dredging, economics, reservoir sedimentation, watershed management

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Ketersediaan

Informasi Detail

Judul Seri

Lake and Reservoir Management

No. Panggil

ATC PO ITH c

Penerbit

American : Taylor and Francis., 2013

Deskripsi Fisik

15 p.

Bahasa

English

ISBN/ISSN

2151-5530

Klasifikasi

PO

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

online resource

Edisi

-

Subjek

Dredging
Economic
cropland management
reservoir sedimentation
watershed management

Info Detail Spesifik

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Pernyataan Tanggungjawab

Craig Smith

Versi lain/terkait

Lampiran Berkas

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