Wetlands have suffered from considerable degradation due to anthropogenic and natural disturbances in recent decades. Although some advancements been made, effective methods that can produce large-scale wetland maps with detailed categories are still lacking the diversity complexity of ecosystems. To address this issue, we developed a novel algorithm for types classification integrating k-fold random forest hierarchical decision tree, so named two-step algorithm. Firstly, phenology-based...

The coupling and coordination relationship between ecology the economy in Yellow River Basin is a hot topic sustainable development research. Said research has important guiding significance for ecological security comprehensive of Basin. Taking as object our study, based on data economy, energy consumption data, water resources we construct an indicator system economic status use principal component analysis method to calculate index. Then, evaluation method, degree model analyze time space...

Habitat suitability assessment is critical for wildlife population conservation and management planning. The MaxEnt model widely used in species habitat modeling. In order to investigate the status of black-necked crane Zoige grassland wetland ecological function area, this study evaluated using with 152 occurrence records 13 environmental variables. Based on Akaike information criterion corrected small sample size, best optimal parameter combination (feature class LQPHT, regularization...

Abstract Instantaneous precipitation can often cause devastating disasters on the Earth's surface. Continuous increases in extreme around world have caused widespread concern, and it is necessary to study hourly over a large scale long time series. Using specific numbers of unique point data from 1980 2019, our research found that there are different spatial patterns regarding frequency intensity Mainland China, but clear pattern being weak west strong east China. Most events occurred June...

Abstract Urban populations face heightened extreme heat risks attributed to urban islands and high population densities. Although previous studies have examined global exposure heatwaves, the influence of urbanization-induced warming is still not quantified. Here, leveraging satellite-derived near-surface air temperature data, we assess impacts on in 1028 cities worldwide. Additionally, investigate its role shaping disparities between North South cities. Our findings reveal that...

The Guangxi Beibu Gulf Economic Zone (GBGEZ) and Guangdong–Hong Kong–Macao Greater Bay Area (GBA) have rich wetlands. However, long-term maps with detailed wetland types in these two regions are scarce, studies on the driving forces of changes insufficient. To this end, our study produced to explore dynamics their forces. From 1990 2020, mangrove, tidal flat, coastal shallow water reservoir had similar change trends metropolitan areas. For GBGEZ between serious degradation, slight obvious...

In 2015, the Sustainable Development Goals (SDG) replaced Millennium (MDG), providing guidance and direction for future development of countries around world. Both MDG SDG have established multiple indicators to achieve environmental sustainability. However, few studies compared changes in ecological environment during two periods. Therefore, this study selected seven major river basins China as area comprehensively assessed ecosystem service importance (ESI) within different periods based...

Mapping detailed wetland types can offer useful information for management and protection, which strongly support the Global Biodiversity Framework. Many studies have conducted classification at regional, national, global scale, whereas fine-resolution mapping with is still challenging. To address this issue, we developed an integration of pixel- object-based algorithms knowledge (POK) by combining pixel-based random forest hierarchical decision tree. Taking Guangxi Beibu Gulf Economic Zone...

The water conservation service function, which is one of the most important ecological function in regional system, directly reflects regulation role a region precipitation, redistribution and ecohydrological value. With development comprehensive evaluation method deepening research on relevant calculation process has changed significantly. Nowadays, assessment it necessary not only to calculate evaluate indicators, but also localize specific parameters model analyze effectiveness overall...

Teacher construction is a long-standing focus of global teacher governance. The highly qualified and professional higher education teaching force source impetus for the sustainable development education. In-depth systematic analysis representative macro policies Chinese university teachers currently limited. Thus, this study employs perspective policy instruments establishes two-dimensional analytical framework to examine key official document reveal government’s intentions instrument use...

Accurate diameter at breast height (DBH) and tree (H) information can be acquired through terrestrial laser scanning (TLS) airborne LiDAR scanner (ALS) point cloud, respectively. To utilize these two features simultaneously but avoid the difficulties of cloud fusion, such as technical complexity time-consuming laborious efforts, a feature-level fusion method (FFATTe) is proposed in this paper. Firstly, TLS ALS data plot are georeferenced by differential global navigation positioning system...

The relationship between land use changes and regional carbon storage is closely linked. Identifying evolving trends concerning influencing factors on under future scenarios key in order to achieve the “dual carbon” goals. Using Chongqing as a case study, this study integrated advantages of PLUS model, InVEST geographic detector model. It conducted simulations type data natural development (ND) ecological protection (EP), identified regarding storage. results were follows: (1) model...

A high grain moisture content at harvest has been an important problem in the latitude region of Northeast China, and it is closely related to genotypes varieties, local meteorological factors planting management. However, delayed a low temperature could not effectively reduce content. In this study, we continuously observed drying during late stage different maturing types maize varieties Daqing, Heilongjiang Province, China 2016 2017. two-segment linear model was used analyze stages...

Abstract China has experienced varying degrees of increase or decrease in daytime and nighttime heatwaves, but studies have mostly been at the site grid scale, it remains unclear how heatwave events vary regionally when spatial scales are considered. Here, we redefine different types from 1979 to 2018 as combined day night (CDNHWEs) independent (nighttime) events. Due more pronounced spatiotemporal characteristics, CDNHWEs dominant China. Further analysis indicates that their intensity is...

Vegetation is a crucial and intuitive index that can be used to evaluate the ecological status. Since 20th century, land use has changed significantly in Yellow River Basin (YRB), along with great changes of vegetation, serious soil erosion, gradual deterioration. To improve environment YRB, China carried out series protection projects since 1970s. Therefore, long-term sequence monitoring vegetation YRB necessary show conservation effect better support further restoration. This study...

Global climate change and disturbances from human activities lead to habitat loss changes in quality, resulting a reduction biodiversity. The continental coastline of China distributes some cities with highly developed economies coastal wetlands rich biodiversity, both economic development biodiversity conservation are important topics. In order clarify the spatial distribution bird areas, based on MaxEnt model GIS analysis, data 488 species birds 15 environmental variables were used...

Accurate high-resolution soil moisture mapping is critical for surface studies as well climate change research. Currently, regional retrieval primarily focuses on a spatial resolution of 1 km, which not able to provide effective information environmental science research and agricultural water resource management. In this study, we developed quantitative framework (250 m) inversion based machine learning, multisource data fusion, in situ measurement data. Specifically, used various sources,...

In order to improve ecosystem service and protect nation ecology security, the government had designated lots of important protection areas, named national key ecological function zones (NKEFZ) in China. Water conservation been assessed with help multisource remote sensing data, spatiotemporal features were analyzed from 2000 2014 these services zones. By assuming precipitation scenario as constant, contribution for water human activities climate change was analyzed, result shows that,...