An increasing amount of grasslands in Inner Mongolia of Northern China has been converted to cropland. The conversions in this extensive semiarid region have produced adverse ecological consequences at local and regional scales (e.g., dust storms). An important research need is to understand the fundamental ecosystem processes, such as energy and material fluxes, associated with the land conver...

A well-drained soil in N-fertilized dairy pasture was amended with particulate organic carbon (POC), either sawdust or coarse woody mulch, and sampled every 4 wk for a year to test the hypothesis that the addition of POC would increase denitrification activity by increasing the number of microsites where denitrification occurred. Overall mean denitrifying enzyme activity (DEA), on a gravimetric...

The present study was initiated to examine the relationship between the workplace concentrations and the estimated highest concentrations in solvent workplaces (SWPs), with special references to enterprise size and types of solvent work. Results of survey conducted in 1010 SWPs in 156 enterprises were taken as a database. Workplace air was sampled at > or = 5 crosses in each SWP following a gri...

Fractures are the dominant conditions for rainfall infiltration into slopes, which can aggravate instability of landslides. However, few studies have been conducted to analyze in detail and deformation characteristics creeping landslides with fractures. In view this, this study investigated a landslide Fu’ao Village, Wencheng County, Zhejiang Province China determine how fractures affect during...

The response mechanism of ecosystem respiration (Re) and soil (Rs) to different water conditions is great significance for understanding the carbon cycle under future changes in precipitation patterns. We used seven treatments investigate effects on Re Rs a typical alpine steppe Northern Tibet. Precipitation was captured relocated simulate rates −25, −50, −75, 0 (CK), +25, +50, +75%. moisture i...

PDF HTML阅读 XML下载 导出引用 引用提醒 毛乌素沙地油蒿叶性状对光能利用效率动态的影响 DOI: 10.5846/stxb202203240732 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: 国家自然科学基金（32101588，32071842，31901366，32071843） Seasonal response of light use efficiency Artemisia ordosica to leaf traits in Mu Us sandy land Author: Affiliation: Fund Project: Fundamental Research Funds for the National Natural Science Foundation China (NSFC, grant numbers 3210158...

Abstract Purpose Agricultural management as tillage systems and manure application can contribute effectively to controlling physical surface crusts (SCs), improving the soil’s technical characteristics germination rates. While agronomic practices are generally applied winter wheat fields in southern Iraq, no previous study has explored their impact combination with SCs soil attributes on produ...

This paper discusses the potential of L-band Advanced Land Observing Satellite-2 (ALOS-2) and C-band Sentinel-1 radar data for retrieving soil parameters over cereal fields. For this purpose, multi-incidence, multi-polarization dual-frequency satellite were acquired simultaneously with in situ measurements collected a semiarid area, Merguellil Plain (central Tunisia). The L- signal sensitivity ...

The most important biotic stress factor impacting tomato crop biophysical, biochemical, physiological, and morphological features is water stress. A pot experiment was undertaken in a greenhouse to study the drought responsiveness of (Solanum lycopersicum) yield quality indices sandy loam silty soils. For both soils, supply levels were 70–100% FC, 60–70% 50–60% 40–50% FC ETo (crop evapotranspir...

The eye contains highly vascularized and completely avascular cell layers in apposition to one another. Such tissue disposition/organization involves tight coordination of vascular growth and vascular arrest. In particular, retinal vascularization, which occurs during the final embryonic stages of development in humans, emerges as a result of coordinated interactions/ cross talks among astrocyt...