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首页> 外文学位 >An economic and environmental analysis of farm-level windbreak agroforestry management systems in eastern Nebraska.
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An economic and environmental analysis of farm-level windbreak agroforestry management systems in eastern Nebraska.

机译：内布拉斯加州东部农场级防风林农林业管理系统的经济和环境分析。

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摘要

Agricultural and conservation policies dictate that landowners adopt practices that achieve long-term environmental goals. There is a renewed focus on shelterbelts as a conservation tool as water quality regulations become more prevalent. Several state and federal programs provide financial and technical assistance for shelterbelt establishment.A farm-level agroforestry modeling system was developed to provide policymakers and farmers with information on the impacts that state and federal programs have on farm income and the environment. The modeling system is being used to determine the farm-level economic and environmental effects of agriculture and wildlife shelterbelt systems in eastern Nebraska,Two representative farms---a 700-acre dryland farm and a 1260-acre irrigated farm---were created in Saunders County, Nebraska. The Farm-Level Income and Policy Simulation Model (FLIPSIM), was used to analyze economic returns over a 50-year period under two different shelterbelt systems: agricultural and wildlife. A total of four crop yield scenarios were included. Policy parameters were examined as land removed from production under each system: (1) was enrolled in the Conservation Reserve Program for a 15-year period and (2) received state cost-share assistance for shelterbelt establishment.The economic results indicate that yield effects on row crops related to microclimate modification are more significant than the policy parameters. For both the dryland and irrigated representative farms, net cash farm income was higher under the agricultural shelterbelt scenarios than the baseline with no trees. Net cash farm income under the wildlife scenarios was lower than the baseline with no trees. Environmental analyses indicated there was little difference between the dryland and irrigated representative farms shelterbelt and no shelterbelt scenarios over the forecast period.This farm-level agroforestry modeling system provides a structure under which agroforestry practices can be evaluated from an economic, environmental and wildlife perspective. Quantitative projections provided by the system will be beneficial to landowners and policy-makers as consideration is given to the development and implementation of future agroforestry programs.
机译：农业和保护政策要求土地所有者采用能够实现长期环境目标的做法。随着水质法规的日益普及，人们越来越关注防护林带作为一种保护工具。几个州和联邦计划为建立防护林带提供了财政和技术援助。开发了农场级农林业模型系统，为决策者和农民提供有关州和联邦计划对农场收入和环境影响的信息。该模型系统用于确定内布拉斯加州东部农业和野生动植物保护带系统对农场的经济和环境影响，创建了两个代表性农场-一个700英亩的旱地农场和一个1260英亩的灌溉农场--在内布拉斯加州桑德斯县农场级收入和政策模拟模型（FLIPSIM）用于分析两种不同的防护林系统（农业和野生动物）在50年期间的经济回报。总共包括四个作物产量方案。在每个系统下，从生产中撤出土地时检查了政策参数：（1）进入了保护储备计划15年，（2）获得了国家成本分担援助以建立防护林带。经济结果表明了产量效应与小气候变化有关的行作物比政策参数更为重要。对于旱地和灌溉代表性农场，在农业防护林方案下，现金农场的净收入均高于没有树木的基线。在没有野生动植物的情况下，现金农场的净收入低于基线。环境分析表明，在预测期内，旱地和有代表性的农田防护林带之间几乎没有差异，并且没有防护林带情景。该农场级农林业模型系统提供了一个结构，可以从经济，环境和野生动植物的角度评估农林业的实践。该系统提供的定量预测将有利于土地所有者和决策者，因为它考虑了未来农林业计划的制定和实施。

著录项

  • 作者

    Cassidy, Daniel Lawrence.;

  • 作者单位

    University of Missouri - Columbia.;

  • 授予单位 University of Missouri - Columbia.;
  • 学科 Agriculture Agronomy.Business Administration Management.Agriculture Forestry and Wildlife.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 233 p.
  • 总页数 233
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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