搜索结果: 106-120 共查到“农学 FOREST”相关记录693条 . 查询时间(0.137 秒)
Effects on Greenhouse Gas (CH4, CO2, N2O) Emissions of Conversion from Over-Mature Forest to Secondary Forest and Korean Pine Plantation in Northeast China
secondary forests over-mature forests Korean pine plantation greenhouse gas fluxes global warming potential
2024/2/29
This study aimed to evaluate the seasonal variations of Greenhouse Gas fluxes (CH4, CO2, and N2O), Greenhouse Gas (GHG) emissions, and Global Warming Potential (GWP) over the extent of the regions and...
Important role of forest disturbances in the global biomass turnover and carbon sinks
CLIMATE FIRE TIME MANAGEMENT DYNAMICS BOREAL IMPACT STOCK MAP
2024/2/5
Forest disturbances that lead to the replacement of whole tree stands are a cornerstone of forest dynamics, with drivers that include fire, windthrow, biotic outbreaks and harvest. The frequency of di...
Assessing Vegetation Composition and the Indicator Species Around Water Source Areas in a Pine Forest Plantation: A Case Study from Watujali and Silengkong Catchments, Kebumen, Indonesia
indicator species water source catchment
2024/2/29
This research aimed to assess vegetation composition and the indicator species around water source areas of pine forest plantation. Data were collected through interview and vegetation survey. Vegetat...
New Opportunities for Forest Remote Sensing Through Ultra-High-Density Drone Lidar
Drone Global Ecosystem Dynamics Investigation (GEDI) Lidar Remote sensing UAV
2024/2/5
Current and planned space missions will produce aboveground biomass density data products at varying spatial resolution. Calibration and validation of these data products is critically dependent on th...
Interactions between Climate and Nutrient Cycles on Forest Response to Global Change: The Role of Mixed Forests
drought N deposition species interactions ecosystem stoichiometry adaptive management
2024/3/5
Forest ecosystems are undergoing unprecedented changes in environmental conditions due to global change impacts. Modification of global biogeochemical cycles of carbon and nitrogen, and the subsequent...
Land Use Changes, Disturbances, and Their Interactions on Future Forest Aboveground Biomass Dynamics in the Northern US
Landsat national forest inventory sensitivity analysis uncertainty
2024/3/5
Land use change (LUC), disturbances, and their interactions play an important role in regional forest carbon (C) dynamics. Here we quantified how these activities and events may influence future above...
Multi-UAV Oxyrrhis Marina-Inspired Search and Dynamic Formation Control for Forest Firefighting
Decentralized search forest?firefighting formation control multi-unmanned aerial vehicle (UAV) system Oxyrrhis Marina-inspired search (OMS)
2024/2/27
This paper presents an Oxyrrhis Marina-inspired search and dynamic formation control (OMS-DFC) framework for multi-unmanned aerial vehicle (UAV) systems to efficiently search and neutralize a dynamic ...
Forest Structure, Wood Standing Stock, and Tree Biomass in Different Restoration Systems in the Brazilian Atlantic Forest
tropical semideciduous seasonal forest ecological restoration agroforestry ecosystem services Legal Reserve
2024/3/5
Reliable estimates of tree growth and wood yield are fundamental to support the management of restored forests and better reconcile the objectives of recovering biodiversity with the provision of ecos...
Optimal forest rotation periods: integrating timber production and carbon sequestration benefits in Pinus tabulaeformis plantations on the Loess Plateau, PR China
Optimal rotation period timber production benefits carbon sequestration avenues ARIMA models
2024/2/27
Determining the optimal rotation period was a crucial component of forest sustainable management strategies, especially under climate change. This paper had two objectives: (1) to determine the econom...
Does the net primary production converge across six temperate forest types under the same climate?
Carbon allocation Elemental stoichiometry Net primary production Nutrient availability Temperate forest
2024/3/8
Quantifying net primary production (NPP) and its allocation is essential for understanding and modeling the carbon (C) cycling in forest ecosystems. We used biometry-based measurements to examine the ...
Evaluation of O3 Effects on Cumulative Photosynthetic CO2 Uptake in Seedlings of Four Japanese Deciduous Broad-Leaved Forest Tree Species Based on Stomatal O3 Uptake
Japanese deciduous broad-leaved trees net photosynthetic rate net primary production stomatal
2024/3/8
The current level of tropospheric ozone (O3) is expected to reduce the net primary production of forest trees. Here, we evaluated the negative effects of O3 on the photosynthetic CO2 uptake of Japanes...
Forest management optimization across spatial scales to reconcile economic and conservation objectives
DEAD-WOOD BIODIVERSITYCONSERVATION FINLAND MULTIFUNCTIONALITY
2024/2/27
Conflicts between biodiversity conservation and resource production can be mitigated by multi-objective management planning. Optimizing management for multiple objectives over larger land areas likely...
Characteristics of annual greenhouse gas flux and NO release from alpine meadow and forest on the eastern Tibetan Plateau
Alpine ecosystem Meadow Forest Non-CO2 greenhouse gas Nitric oxide
2024/2/27
The importance of the world's largest plateau (i.e., the Tibetan Plateau) as a source/sink for atmospheric greenhouse gases (GHGs) still remains uncertain as field observations covering entire years a...
Impacts of Change in Atmospheric CO2 Concentration on Larix gmelinii Forest Growth in Northeast China from 1950 to 2010
treegrowth CO2fertilization tree-ring dendrochronology InTECmodel
2024/3/12
Although CO2 fertilization on plant growth has been repeatedly modeled to be the main reason for the current changes in the terrestrial carbon sink at the global scale, there have been controversial f...
Evaluation of UAV Based Schemes for Forest Fire Monitoring
Forestfiremonitoring UAV Mechatronicevaluation
2024/2/28
This paper presents a mechatronic evaluation of forest fire monitoring systems based on UAV. To begin with, a mapping of the requirements to the mechatronic abilities, which should be embodied by thes...