Climate change is causing severe changes in the ecosystem, thus understanding how plants respond to drought essential protecting ecosystems Inner Mongolia. Multi-temporal variations of Mongolia were studied using Standardized Precipitation Evapotranspiration Index (SPEI), and vegetation growth was analyzed Normalized Difference Vegetation (NDVI). Moreover, correlation between droughts different lengths NDVI studied. Subsequently, we developed an optimal binary probability model calculate...

Inner Mongolia grassland is a sensitive area of vegetation response to climate change in China and an ecologically fragile terrestrial ecosystem, which easily degraded due the coordinated interference natural human factors. Therefore, it great practical significance explore spatial-temporal variation coverage influence hydrothermal conditions on its growth, protect regional ecological environment, realize sustainable development animal husbandry make more reasonable effective use resources...

Fine-grained visual categorization has long been considered as an important problem, however, its real application is still restricted, since precisely annotating a large fine-grained image dataset laborious task and requires expert-level human knowledge. A solution to this problem applying domain adaptation approaches scenarios, where the key idea discover commonality between existing datasets massive unlabeled data in wild. The main technical bottleneck lies that inter-domain variation...

Abstract Machine learning combined with multisource remote sensing data to assess soil moisture content (SMC) has attracted considerable attention in SMC studies, but the retrieval results still remain uncertain. The purpose of this study is combine multiple single machine models integrated algorithms and propose an method based on differentiated under a stacking architecture. First, 19 factors, including: radar backscattering coefficient, vegetation index, drought that affect were extracted...

Recently, the frequent occurrence of droughts has caused a serious impact on vegetation growth and progression. This research is based upon normalized difference index (NDVI) from 2001 to 2020. The correlation between NDVI standardized precipitation evapotranspiration (SPEI) at disparate time scales was used assess response drought in Yinshanbeilu region. levels SPEI1, SPEI3, SPEI6, SPEI12 increased prominently eastern region country, while decreased significantly east west spring, summer,...

We describe herein the direct organocatalytic asymmetric nucleophilic substitution reaction of 2-benzylfurfurals with benzyl alcohols and allylic alcohol in absence any metal catalysts ligands. A series γ-regioselective products were obtained high yields up to 99% enantiomeric excess.

In this study, the preparation of apricot kernel shell biochar by a hydrothermal method and its adsorption mechanism for atrazine was studied scanning electron microscopy (SEM) infrared spectrum (FTIR) analytical techniques. The results show that prepared from has an evenly distributed, nonaggregated carbon microsphere structure contains large number oxygen-containing groups. higher temperature is, more functional groups exist better potential performance is. kinetics on were fitted with...

The dynamics of plants’ carbon and water use efficiency their responses to drought are crucial the sustainable development arid semi-arid environments. This study used trend analysis partial correlation examine (CUE) (WUE) Inner Mongolia’s vegetation from 2001 2020. MODIS data for gross primary productivity (GPP), net (NPP), potential evapotranspiration (PET), (ET), severity index (DSI), plant type were used. Altered trends observed during 2001–2020 in area. results revealed that 98.17%...

Climate and human activities are the basic driving forces that control influence spatial distribution change of vegetation. Using trend analysis, Hurst index, correlation Moran path residual other methods, effects climate factors on vegetation were analyzed. The results show that: (1) research area's normalized difference index (NDVI) exhibited a substantial upward from 2001 to 2020, increasing at rate 0.003/a, cover was generally healthy. constant NDVI region made up 78.45% entire area,...

Drought refers to a meteorological disaster that results in insufficient soil moisture due long-term lack of rainfall and disrupts the balance crops. Yinshanbeilu Inner Mongolia is an arid semi-arid region, onset drought its subsequent transmission key challenge water resource management. This study takes as area, analyses changing characteristics multi-timescale from 1971 2020 based on Standardised Precipitation Index (SPI), stochasticity stability by using cloud model. Finally,...

Sand prevention and control are the main tasks of desertification control. The MU Us Sandy Land (MUSL), one China’s four deserts, frequently experiences droughts has a very fragile biological environment. Climate change is factor leading to drought, it may result in more serious drought situations future. Temperature Vegetation Dryness Index (TVDI) was established using land surface temperature normalized difference vegetation index data. In this paper, we investigate spatial temporal...

Introduction: With global warming, the disaster losses caused by extreme precipitation events are increasing. The poor natural conditions and climate change make arid semi-arid mountainous grassland area a sensitive region of change. study on spatio-temporal variation characteristics in this is helpful to improve ability prediction prevention reduction grassland. Methods: Based daily data four meteorological monitoring stations Yinshanbeilu from 1970 2020, trend analysis, M-K test wavelet...

Data-serialization libraries are essential tools in software development, responsible for converting between programmable data structures and persistence formats. Among them, JSON is the most popular choice exchanging different systems programming languages, while serve as toolkit this task. Despite their widespread use, bugs can cause severe issues such inconsistencies security vulnerabilities. Unit test generation techniques widely adopted to identify various libraries. However, there...

Most of the previous studies only used index vegetation growth to characterize ecological drought. This study built a Standardized Ecological Water Deficit Index (SEWDI) , analysed its space–time evolution characteristics from perspectives time, space and spatio-temporal coupling, extractes feature variables by three-dimensional clustering, typical drought events, effect teleconnection factors on was investigated using cross wavelet analysis . The reliability SEWDI quantitatively evaluated...