Economic Importance of Managing Spatially Heterogeneous Weed populations

John L. Lindquist; J. Anita Dieleman; David A.Mortensen

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Economic Importance of Managing Spatially Heterogeneous Weed populations

机译：管理空间异类杂草种群的经济重要性

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Three methods of predicting the impact of weed interference on crop yield and expected economic return were compared to evaluate the economic importance of weed spatial heterogeneity. Density of three weed species was obtained using a grid sampling scheme in 11 corn and 11 soybean Fields. Crop yield loss was predicted assuming densities were homogeneous, aggregated following a Negative binomial with known population mean and k, or aggregated with weed densities spatially Mapped.

机译：比较了三种预测杂草干扰对作物产量和预期经济收益的影响的方法，以评估杂草空间异质性的经济重要性。使用网格采样方案在11个玉米田和11个大豆田中获得了3种杂草的密度。假设密度是均匀的，根据已知的种群平均数和k的负二项式进行聚合，或在空间上映射的杂草密度进行汇总，则可预测作物的产量损失。

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《Weed technology》 |1998年第1期|p.7-13|共7页
作者
John L. Lindquist; J. Anita Dieleman; David A.Mortensen;
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1. Study of the Spatial Relationship between Seed Bank and Weed Populations and the Distribution Pattern of Weeds in Corn Fields during the Growing Season [J] . Esmaeil Yasari, Masoomeh Gholami Golafshan International Journal of Biology . 2012,第4期

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2. Maps of spatial distribution of weed population: usefull or not for better weed control? [J] . Bruno Chauvel, F. Dessaint, N. Colbach, Phytoma: La Defense des Vegetaux . 2003,第558期

机译：杂草人口空间分布的地图：有用或不适合更好的杂草控制？
3. Spatial synchrony in population fluctuations: extending the Moran theorem to cope with spatially heterogeneous dynamics [J] . Hugueny B Oikos: A Journal of Ecology . 2006,第1期

机译：人口波动的空间同步性：扩展Moran定理以应对空间异质性动力学
4. 4SPaM: a process-based and weather-driven population model for managing weeds in temperate pastures [C] . Darren J. Kriticos, Peter M. Dowling, Warren McG. King, Australian Weeds Conferences . 2002

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Economic Importance of Managing Spatially Heterogeneous Weed populations

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