Soil microbial communities are essential to phosphorus (P) cycling, especially in the process of insoluble solubilization for plant P uptake. Phosphate-solubilizing microorganisms (PSM) dominant driving forces. The PSM mediated soil cycling is easily affected by water condition changes due extreme hydrological events. Previous studies basically focused on effects droughts, floods, or drying-rewetting while few drought-flood abrupt alternation (DFAA), through activities. This study explored...

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%...

Promoting the reasonable allocation of evaporation (E) and transpiration (T) at a certain time scale is important for controlling grassland desertification. Nevertheless, evapotranspiration (ET) its components on single often cannot guarantee dynamic distribution E T. This study quantified ET component in different scales plant-growing season desert ecosystems to address this contradiction. Further main driving factors were clarified under multi-factor coupling. Results indicated that was...

Neither single nor discontinuous hydrological observation data can truly reflect periodic changes in soil moisture under natural conditions or interrelationships between various water sources. Therefore, this study, precipitation pulse characteristics and variations the content (SWC) actual evapotranspiration (ETa) relation to pulses are explored through a field multi-water continuous system set desert steppe Inner Mongolia, China. A comparison events growing seasons of 2016 2017 shows that...

Understanding the adaptative behaviors of dominant desert-steppe species under varying levels grazing-related environmental degradation is an important step in elucidating survival strategies and response mechanisms desert plants. In this study, Xilamuren steppe Northwest China was used as a case study location to systematically investigate traits three plant (Stipa breviflora, Cleistogenes squarrosa, Convolvulus ammannii) from perspectives morphology, leaf structure, photosynthesis. As...

Crop reduction caused by cryogenesis and drought is a serious global problem. The environmental stress low temperature during the overwintering stage of forage key factor leading to this yield. In cold arid grassland, winter irrigation can effectively alleviate alfalfa overwintering, improve survival rate alfalfa, significantly increase However, water uptake patterns under are not clear, which important explore mechanism alleviating irrigation. research, stable isotope compositions all...

Accumulated evidence reminds one that abrupt transitions between dry and wet spells, though attracting less attention, have harmful influences upon global continents as extensively investigated droughts floods. This study attempts to incorporate dryness–wetness into the current hazard assessment framework through bivariate frequency analysis causal attribution from a teleconnection perspective. In study, regional conditions are monitored using multivariate standardized drought index (MSDI)...

Understanding the effect of land surface characteristics on rainfall-runoff generation is crucial in mastering mechanisms soil and water conservation. To characterize desert steppes to quantify contribution different influencing factors, a field-simulated experiment with three degradation levels rainfall intensities (RIs) was conducted Inner Mongolia Desert Steppe. The results revealed that degraded plots at various RIs differed significantly. runoff generated faster accumulated larger...

The changes in sap flow of Salix psammophila growing on a gentle slope (lower slope, P1), middle (P2), and an upper (P3), the response to meteorological factors at different positions were studied using continuous synchronized observations, instrument wrapped stem flowmeter EMS 62 sap-flow heat-balance-based system LSI-LASTEM automatic weather station. results revealed that soil moisture content was highest growth conditions best P1, followed by P2. At P3, however, although good apical...

Graphical Electromagnetic Computing (GRECO) is one of the valuable methods for computing radar cross section (RCS) complex target in high frequency region. But there are some shortages wedge detecting method original GRECO literature. A new collecting edge pixels and parameters presented this paper. An expression diffraction field literature error, error-corrected formulas derived by using equivalent currents (MEC) physical theory (PTD). Finally, total RCS given optics (PO) PTD method. The...

Measuring and correcting for shaking of unstable platform is a problem in engineering, which has significant effect on instruments precision. We proposed measuring method based videometrics. Take vehicle-mounted theodolite instance. Determine nominal state by external datum, calculate platforms related to utilizing pose estimation algorithms. Furthermore, correct theodolites observation error. develop system. The been validated experiments. Experiments results indicate that: 1) systems...

Lip reading, the process of interpreting silent speech from visual lip movements, has gained rising attention for its wide range realistic applications. Deep learning approaches greatly improve current reading systems. However, in cross-speaker scenarios where speaker identity changes, poses a challenging problem due to inter-speaker variability. A well-trained system may perform poorly when handling brand new speaker. To learn speaker-robust model, key insight is reduce variations across...

Extreme drought and flood events, as well their combined pose significant challenges to global sustainable socio-economic development ecological health. However, the impact of dry–wet combination events (DWCEs) on vegetation vulnerability remains be investigated. The Loess Plateau (LP) was selected study area explore response time precipitation index changes by optimal correlation coefficient; then, different DWCEs under moderate severe scenarios analyzed; finally, a loss probability model...

Desert grasslands are a crucial component of terrestrial ecosystems that play vital roles in regional and global hydrological cycling, climate change, ecosystem balance through variations their soil moisture content (SMC). Despite this, current research on the SMC desert remains insufficient, with many areas remaining underexplored. In this study, we focused typical grassland located northern foothills Yinshan Mountains. Ground-penetrating radar (GPR) exploration sampling were used to test...

Lakes on the Inner Mongolia Plateau, located in ecologically fragile area of northern border China, play a very important role regulating regional climate and ecological environment maintaining biodiversity. Owing to dual influence natural factors human factors, lake water is facing challenges. To clarify overall quality lakes Mongolia, based data typical autumn 2019(October-November) summer 2021(July-August), temporal spatial variation was discussed, different indexes analyzed, key...

Droughts have significantly damaged the environment of Inner Mongolia Autonomous Region, China. In this study, region was divided into two subregions. Soil moisture used as basic parameter to analyze characteristics agricultural droughts. Based on a geographical detector, spatial stratified heterogeneity in different seasons discussed. Moreover, copula joint functions and dominant factors droughts were constructed. Moisture Anomaly Percentage Index (SMAPI), results demonstrate that climate...