Mangrove National Nature Reserves (MNNRs) play an extraordinarily significant role in conserving mangrove forests and their habitats. In China, one-fourth of the total were located MNNRs. Understanding annual spatial distributions conversions these are important for precision conservation rehabilitation efforts. However, to date, land cover maps China's MNNRs still unavailable. Here, we proposed a rapid robust approach produce each time period 2016–2020 based on 10-m resolution Sentinel-2...

Land use carbon emission is one of the main sources greenhouse gases. In order to achieve reduction, it crucial clarify pathways land influencing factors. The article takes Chang-Zhu-Tan urban agglomeration as study area, combines remote sensing data and energy consumption statistics from 1995 2018, uses STIRPAT extended model identify economic, population, energy, technology, policy, opening-up level latent variables affecting in establish PLS-SEM explore influence on dependent interaction...

Soil Conservation Service (SCS) model, developed by U. S. in 1972, has been widely applied the estimation of runoff from an small watershed. In this paper, based on remote sensing geo-information data land use and soil classification all obtained Landsat images 1996 1997 conventional hydrology meteorology, SCS model was investigated for simulating surface single rainstorm Wangdonggou watershed, a typical watershed Loess Plateau, located Changwu County Shaanxi Province China....

Determining differences in regional carbon emissions and the factors that affect these is important realization of differentiated mitigation policies. This paper adopts Theil index partial least square-variable importance projection (PLS-VIP) method to analyze change characteristics, causes emissions, as well extent which various influenced China’s eight economic regions 2005–2017. The results indicate (1) during study period, displayed a rigid uptrend with phased characteristic. growth...

The natural abundances of stable nitrogen isotopes in plants and soils have been viewed as recorders that can be used to reconstruct paleoclimate ecological processes or indicate the biogeochemical cycle nature. This study systematically measured isotope composition (δ(15)N) surface along an altitudinal transect elevation range 1200 4500 m on eastern slope Mount Gongga southwest China. influences photosynthetic pathways plant δ(15)N well effects temperature precipitation trends are...

With the advancement of urbanization, harm caused to human health by PM

Land use carbon emission is an important factor affecting regional peak and neutralization. Based on land remote sensing data calculation model, the of in Chang-Zhu-Tan urban agglomeration from 1995 to 2018 estimated. The temporal-spatial changes differences conduction effect caused by transfer are analyzed using matrix, spatial relative change rate arcgis10.2 software. results show that: ① From 2018, net increased 810.84 × 104 t 2015.41 t, source / sink ratio showed upward trend as a whole....

Facing the growing problem of carbon emission pollution, scientific and reasonable division environmental management power between governments is premise institutional foundation for realizing China's reduction target in 2030. In this article, we directly assess degree decentralization according to allocation managers among different levels government. By incorporating fiscal indicators, provincial panel data dynamic spatial econometric model are used empirically test impact on emissions...

As the dominant height of stand at baseline age, site index is an important to evaluate quality. However, due variability environmental factors, growth process same tree species was variable in different regions which influenced estimation results index. In this study, a methodology that established modeling larch plantations with types as random effect northern China proposed. Based on 394 sample plots, nine common base models were developed, and best model (M8) selected (R2 = 0.5773)...

With the changing demands imposed on forests by human beings, optimizing forest management to fully utilize their multifunctionality has become a priority. Reasonable measures can maintain stable ecosystems that coordinate balance between ecological, societal, and economic aspects. As planted are main application scenario of worldwide, it is great importance understand trade-offs ecosystem functions dynamic changes in forests. This paper investigates effects different function Pinus...

Screening of available local halophytes for salinity tolerance is considerable economic value the utilization heavy salt-affected lands in coastal tidal-flat areas and other saline areas. In this study, germination seedling pot experiments on salt eight halophytic species from Yellow River Delta, China, at seven NaCl concentrations (0, 50, 100, 150, 200, 250, 300 mM), were conducted both growth stages. Results showed that rate index decreased with an increase concentration. The higher rates...

wetlands environmental degradation is a major issue in the Yellow River Delta. The natural threats and human activities to delta, such as flow cut-off of droughts, population growth urbanization, cause problem wetland during last century, especially recent five decades. An investigation on Delta analysis its causation were conducted. results indicated that changes mostly tremendous whole loss area, surface water groundwater pollution. Some new forms management based traditional scientific...

Close-to-nature (CTN) forestry integrates multiple forest functions and emphasizes ecosystem conservation. Within this framework, forests are typically maintained as uneven-aged mixed stands with vertical layers managed following the defined stand developmental stages, that is, various phases of succession. This study aimed to evaluate long-term effects CTN management on structure growth Pinus massoniana using data from 28 plots approach 58 traditional monocultures in southern China. A...