Huiru Zhang
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View article: Environmental contingency of forest-cloud interactions: Contrasting atmospheric enhancement and suppression mechanisms across Chinese climate gradients
Environmental contingency of forest-cloud interactions: Contrasting atmospheric enhancement and suppression mechanisms across Chinese climate gradients Open
Forest-cloud interactions exhibit striking regional variations that challenge universal assumptions about forest atmospheric services. Using satellite data (2000–2022) and multiple analytical approaches including correlation analysis, prop…
View article: Mapping species-specific aboveground forest biomass for Guangxi using wall-to-wall airborne laser scanning data
Mapping species-specific aboveground forest biomass for Guangxi using wall-to-wall airborne laser scanning data Open
Estimates of aboveground forest biomass (AGB) and carbon fluxes, especially on a species-specific basis, over an extensive area are crucial in decision-making in forestry. This study generated the species-specific AGB map with a resolution…
View article: Modelling height to crown base using non-parametric methods for mixed forests in China
Modelling height to crown base using non-parametric methods for mixed forests in China Open
The height to crown base (HCB) of a tree is a vital characteristic that reflects the self-thinning ability of a tree, and it is used to determine the crown size. and predict the crown recession rate. This study simulated the HCB of Spruce …
View article: LiDAR-Based Modeling of Individual Tree Height to Crown Base in Picea crassifolia Kom. in Northern China: Comparing Bayesian, Gaussian Process, and Random Forest Approaches
LiDAR-Based Modeling of Individual Tree Height to Crown Base in Picea crassifolia Kom. in Northern China: Comparing Bayesian, Gaussian Process, and Random Forest Approaches Open
This study compared hierarchical Bayesian, mixed-effects Gaussian process regression, and random forest models for predicting height to crown base (HCB) in Qinghai spruce (Picea crassifolia Kom.) forests using LiDAR-derived data. Both mode…
View article: Forest above-ground biomass estimation based on strongly collinear variables derived from airborne laser scanning data
Forest above-ground biomass estimation based on strongly collinear variables derived from airborne laser scanning data Open
Airborne laser scanning technique (ALS) is the most appealing remote sensing technique for the precise estimation of forest above-ground biomass (AGB). Significantly strong correlations (collinearity) among the independent variables derive…
View article: Impact of Management Measures on Multiple Ecosystem Function Trade-Offs and Their Dynamics in Subtropic Pinus massoniana Plantations
Impact of Management Measures on Multiple Ecosystem Function Trade-Offs and Their Dynamics in Subtropic Pinus massoniana Plantations Open
With the changing demands imposed on forests by human beings, optimizing forest management to fully utilize their multifunctionality has become a priority. Reasonable forest management measures can maintain stable forest ecosystems that fu…
View article: Individual Tree Height Increment Model for Quercus mongolica Secondary Forest in the Northeastern China Using Generalized Nonlinear Two-Level Mixed-Effects Model
Individual Tree Height Increment Model for Quercus mongolica Secondary Forest in the Northeastern China Using Generalized Nonlinear Two-Level Mixed-Effects Model Open
(1) Background: Mongolian oak secondary forest is widely distributed in the northeast of China, and most of these forests are formed after the overcutting of broad-leaved Pinus koraiensis mixed forest. Most of the forest productivity is lo…
View article: Spatial Structure Dynamics and Maintenance of a Natural Mixed Forest
Spatial Structure Dynamics and Maintenance of a Natural Mixed Forest Open
Spatial structure dynamics play a major role in understanding the mechanisms of forest structure and biodiversity formation. Recently, researches on the spatial structure dynamics utilizing multi-period data have been published. However, t…
View article: Occurrence of Microplastics from Plastic Fragments in Cultivated Soil of Sichuan Province: The Key Controls
Occurrence of Microplastics from Plastic Fragments in Cultivated Soil of Sichuan Province: The Key Controls Open
With the continuous increase in the amount of mulch film, “white pollution” caused by plastic fragments (PF) has seriously affected agricultural production progress and poses a great threat to the safety and health of the agricultural envi…
View article: The Effect of Stand Density, Biodiversity, and Spatial Structure on Stand Basal Area Increment in Natural Spruce-Fir-Broadleaf Mixed Forests
The Effect of Stand Density, Biodiversity, and Spatial Structure on Stand Basal Area Increment in Natural Spruce-Fir-Broadleaf Mixed Forests Open
Forest trees exhibit a large variation in the basal area increment (BAI), and the variation is attributed to the stand density, biodiversity, and stand spatial structure. Studying and quantifying the effect of these above variables on tree…
View article: Simultaneous Compatible System of Models of Height, Crown Length, and Height to Crown Base for Natural Secondary Forests of Northeast China
Simultaneous Compatible System of Models of Height, Crown Length, and Height to Crown Base for Natural Secondary Forests of Northeast China Open
Individual trees are characterized by various sizes and forms, such as diameter at breast height, total height (H), height to crown base (HCB), crown length (CL), crown width, and crown and stem forms. Tree characteristics are strongly rel…
View article: A Nonlinear Mixed-Effects Height-Diameter Model with Interaction Effects of Stand Density and Site Index for Larix olgensis in Northeast China
A Nonlinear Mixed-Effects Height-Diameter Model with Interaction Effects of Stand Density and Site Index for Larix olgensis in Northeast China Open
Tree height is a basic input variable in various forest models, such as growth and yield models, biomass models, and carbon budget models, which serve as very important tools for the informed decision-making in forestry. The height-diamete…
View article: Modelling Individual Tree Diameter Growth of Quercus mongolica Secondary Forest in the Northeast of China
Modelling Individual Tree Diameter Growth of Quercus mongolica Secondary Forest in the Northeast of China Open
Quercus mongolica secondary forest is widely distributed in the northeast of China, but it usually has low productivity, unstable structure, poor health, and low biodiversity. Diameter is a tree variable that is commonly used for forest gr…
View article: Prediction of Individual Tree Diameter and Height to Crown Base Using Nonlinear Simultaneous Regression and Airborne LiDAR Data
Prediction of Individual Tree Diameter and Height to Crown Base Using Nonlinear Simultaneous Regression and Airborne LiDAR Data Open
The forest growth and yield models, which are used as important decision-support tools in forest management, are commonly based on the individual tree characteristics, such as diameter at breast height (DBH), crown ratio, and height to cro…
View article: Chinese pharmaceuticals: does sub-national marketisation matter? Evidence of cross-province acquisitions by Guangdong pharmaceutical firms
Chinese pharmaceuticals: does sub-national marketisation matter? Evidence of cross-province acquisitions by Guangdong pharmaceutical firms Open
This article assesses the influence of sub-national marketisation on the equity share choice in mergers and acquisitions. Focusing on domestic acquisitions, we examine the relationship between marketisation of the target firm and the acqui…
View article: Spatial Autoregressive Models for Stand Top and Stand Mean Height Relationship in Mixed Quercus mongolica Broadleaved Natural Stands of Northeast China
Spatial Autoregressive Models for Stand Top and Stand Mean Height Relationship in Mixed Quercus mongolica Broadleaved Natural Stands of Northeast China Open
The relationship of stand top and stand mean height is important for forest growth and yield modeling, but it has not been explored for natural mixed forests. Observations of stand top and stand mean height can present spatial dependence o…
View article: Multilevel Nonlinear Mixed-Effect Crown Ratio Models for Individual Trees of Mongolian Oak (Quercus mongolica) in Northeast China
Multilevel Nonlinear Mixed-Effect Crown Ratio Models for Individual Trees of Mongolian Oak (Quercus mongolica) in Northeast China Open
In this study, an individual tree crown ratio (CR) model was developed with a data set from a total of 3134 Mongolian oak (Quercus mongolica) trees within 112 sample plots allocated in Wangqing Forest Bureau of northeast China. Because of …