Download PDF by Donald L. Sparks: Advances in Agronomy, Volume 132

By Donald L. Sparks

ISBN-10: 0128021357

ISBN-13: 9780128021354

ISBN-10: 1611621631

ISBN-13: 9781611621631

Advances in Agronomy remains to be well-known as a number one reference and a prime resource for the newest learn in agronomy. every one quantity includes an eclectic workforce of reports via major scientists in the course of the international.

As consistently, the themes lined are diversified and exemplary of the myriad of subject material handled by way of this long-running serial.

  • Timely and state of the art reviews
  • Distinguished, good well-known authors
  • A venerable and iconic assessment series
  • Timely book of submitted reviews

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Extra info for Advances in Agronomy, Volume 132

Example text

Requiring water quality to be an explicit objective of restorations included within WIP accounting would avoid the inclusion of projects with minimal water quality benefits. Finally, we believe that research is needed on farmer attitudes in the Chesapeake Bay watershed toward wetlands for water quality protection. Scale will be an important consideration moving forward with a targeting approach. State WIPs are developed at the county scale, but watersheds may cover multiple counties. At the scale of the entire Mid-Atlantic Coastal Plain, it may be useful to allocate efforts according to hydrogeomorphic region, with more effort to promote wetland BMPs in the “poorly drained uplands” and “surficial confined” regions.

Meeting the needs of landowners may limit options for wetland siting and design. However, in some instances, it may be desirable to take “productive” land out of production to achieve water quality benefits. It may be necessary to expand the concept farmers have of land productivity to include ecosystem services other than food production, as recommended by Hansson et al. (2012). Several other deterrents to wetland restoration can make obtaining landowner cooperation difficult. Gelso et al. (2008) found that a high degree of wetland dispersion on the farm substantially increases the perceived costs associated with wetlands, indicating that farmers are inconvenienced by having to transport equipment around wetland areas.

POLITICAL, SOCIAL, AND ECONOMIC CHALLENGES In addition to biological and physical challenges, there are a number of political, social, and economic challenges to using wetlands to improve water quality in agricultural watersheds. These include (1) limited information on current wetland practices, (2) broad/unclear objectives of wetland BMPs, and (3) factors limiting landowner willingness to adopt wetland BMPs. Within these challenges, there are questions such as • How well do existing institutions support wetland targeting for N attenuation?

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Advances in Agronomy, Volume 132 by Donald L. Sparks


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