搜索结果: 1-15 共查到“Level”相关记录1399条 . 查询时间(0.109 秒)
南京农业大学农学院《Agricultural and Forest Meteorology》发表智慧农业团队“Simulating the effects of low-temperature stress during flowering stage on leaf-level photosynthesis with current rice models”（图）
智慧 农业 气候变化 作物
2024/8/15
2024年来，南京农业大学农学院智慧农业团队在极端气候下的作物模型算法改进工作方面进行了深入研究，为未来气候变化背景下的作物生产力模拟提供了理论与技术基础。研究结果2024年8月2日以“Simulating the effects of low-temperature stress during flowering stage on leaf-level photosynthesis with c...
The Effect of Alternative Forest Management Models on the Forest Harvest and Emissions as Compared to the Forest Reference Level
forest management models carbon sink forest harvest forest reference level production forests multifunctional forests set-aside forests
2024/1/22
Background and Objectives: Under the Paris Agreement, the European Union (EU) sets rules for accounting the greenhouse gas emissions and removals from forest land (FL). According to these rules, the a...
The GIGANTEA-ENHANCED EM LEVEL complex enhances drought tolerance via regulation of abscisic acid synthesis
Arabidopsis thaliana drought stress GIGANTEA (GI) ENHANCED EM LEVEL (EEL) 9-CIS-EPOXYCAROTENOID DIOXYGENASES 3 (NCED3) abscisic acid (ABA)
2024/1/11
Drought is one of the most critical environmental stresses limiting plant growth and crop productivity. The synthesis and signaling of abscisic acid (ABA), a key phytohormone in the drought stress res...
Integration of Multi-Sensor Data to Estimate Plot-Level Stem Volume Using Machine Learning Algorithms-Case Study of Evergreen Conifer Planted Forests in Japan
UAS stem volume TLS SAR random forest support vector multiple regression forest biophysical parameter
2023/12/21
The development of new methods for estimating precise forest structure parameters is essential for the quantitative evaluation of forest resources. Conventional use of satellite image data, increasing...
Changes within a South Carolina Coastal Wetland Forest in the Face of Rising Sea Level
tidal freshwater forested wetlands woody production leaf production forest productivity vascular flora Strawberry Swamp South Carolina
2023/12/6
Rising sea levels and increasing salinity are impacting coastal forests of the Southern U.S. Forest productivity and composition was studied from 2014 to 2020 in paired plots (20 × 25-m) along a porew...
Aridity and High Salinity, Rather Than Soil Nutrients, Regulate Nitrogen and Phosphorus Stoichiometry in Desert Plants from the Individual to the Community Level
biogeochemistry natural grassland extreme environment drought stress adaptation
2023/12/4
The stoichiometric characteristics of plant nitrogen (N) and phosphorus (P) and their correlations with soil properties are regarded as key for exploring plant physiological and ecological processes a...
Using Tree Height, Crown Area and Stand-Level Parameters to Estimate Tree Diameter, Volume, and Biomass of Pinus radiata, Eucalyptus globulus and Eucalyptus nitens
radiata pine blue gum shinning gum diameter-height allometry crown diameter stem volume above-ground biomass growth and yield modeling remote sensing
2023/11/22
Accurate estimates of tree diameter, height, volume, and biomass are important for numerous economic and ecological applications. In this study, we report exponential equations to predict tree DBH (cm...
Bringing "Climate-Smart Forestry" Down to the Local Level-Identifying Barriers, Pathways and Indicators for Its Implementation in Practice
sustainable forest management climate change mitigation adaptation nature’s contributions to people
2023/11/20
The theoretical concept of "climate-smart?forestry" aims to integrate climate change mitigation and adaptation to maintain and enhance forests' contributions to people and global agendas. We carried o...
Application to raise capacity of French very-low-level waste repository（图）
法国 放射性废物处理 极低水平废物处置
2023/4/17
French radioactive waste management agency Andra has applied to the department of Aube in north-eastern France for environmental permission to increase the current authorised storage capacity of Cires...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Probabilistic HIV Recency Classification -- A Logistic Regression without Labeled Individual Level Training Data
概率 HIV新近度分类 个人水平训练数据 逻辑回归
2023/4/24
Accurate HIV incidence estimation based on individual recent infection status (recent vs long-term infection) is important for monitoring the epidemic, targeting interventions to those at greatest ris...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Income Interdependence in the UK Multi-Regional Economy: A Meso-Level Analysis
英国 多区域经济 收入相互依存 中观分析
2023/4/27
Consumer expenditures in the United Kingdom account for over 50% of Gross Domestic Product on the expenditure side, yet their impact on economic activity is often overshadowed by attention to technolo...
Controlling microscopic processes is inherently challenging. The everyday tools used to manipulate matter on the macroscale can’t simply be shrunk down to the size of cell, and even if they could, the...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Modeling normalcy-dominant ordinal time series: An application to air quality level
正态主导 有序时间序列 建模 空气质量水平
2023/5/10
Inspired by the study of air quality level data, we propose a new model for the normalcy-dominant ordinal time series. The proposed model is based on a new zero-one-inflated bounded Poisson distributi...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars： Modeling normalcy-dominant ordinal time series: An application to air quality level
正态主导 有序时间序列 建模 空气质量水平
2023/5/10
Inspired by the study of air quality level data, we propose a new model for the normalcy-dominant ordinal time series. The proposed model is based on a new zero-one-inflated bounded Poisson distributi...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：International trade and Covid-19: City-level evidence from China's lockdown policy
国际贸易 新冠肺炎 中国封锁政策 城市证据
2023/5/16
We examines the impact of Covid-19 lockdowns on exports by Chinese cities. We use city-level export data at a monthly frequency from January 2018 through April 2020. Differences-in-differences estimat...