相关实验视频

Updated: May 15, 2025

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management
05:04

Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management

Published on: July 14, 2023

325

时间和空间的和管理差异:使用CAFE框架对切萨皮克湾的案例研究

Tan Zou1, Eric A Davidson1,2, Robert D Sabo3

  • 1Appalachian Laboratory, University of Maryland Center for Environmental Science, Frostburg, MD, United States of America.

Environmental research letters : ERL [Web site]
|April 10, 2025
PubMed
概括

有效的营养管理是可持续性的关键. 这项研究发现,大部分的 (N) 和 (P) 损失发生在耕地之外,但废物流提供了替代肥料的潜力.

关键词:
减少的减少.营养管理 营养管理营养污染 污染 营养污染减少的减少.可持续性 可持续性的可持续性可持续农业 可持续农业

更多相关视频

Author Spotlight: Unveiling Plankton Response to Climate Change Through Time-Series Data and Artistic Expression08:15

Author Spotlight: Unveiling Plankton Response to Climate Change Through Time-Series Data and Artistic Expression

Published on: July 28, 2023

1.1K
A Protocol for Collecting and Constructing Soil Core Lysimeters13:23

A Protocol for Collecting and Constructing Soil Core Lysimeters

Published on: June 6, 2016

11.6K

相关概念视频

The Phosphorus Cycle01:21

The Phosphorus Cycle

Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.
36.2K
Primary Production01:06

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
23.5K
Production Efficiency01:01

Production Efficiency

Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
16.7K
What are Biogeochemical Cycles?00:54

What are Biogeochemical Cycles?

The most common elements in organic molecules, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus, are only available in the ecosystem in limited amounts. Therefore, these nutrients must be recycled through both biotic and abiotic components of the ecosystem, in processes generally called biogeochemical cycles.
30.8K