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In the process of urbanization, a brisk building boom triggers a series of environmental problems. Construction contractors usually present environmentally fraudulent behaviors, i.e., greenwashing behaviors (GWBs), to legitimize their activities, ultimately hindering the sustainable development of the society. However, the formation mechanism of the contractors' GWBs is still unclear. Through the lens of fraud GONE theory (i.e., greed, opportunity, needs, and exposure), this study applies the multi-group structural equation model (SEM) and fuzzy-set qualitative comparative analysis (fsQCA) to examine the formation mechanisms of GWBs. The results of SEM show the relationships between four fraud factors and GWBs. Additionally, the projects are grouped into three categories: government investment projects, private-public-partnership (PPP) projects, and private investment projects. The results of multi-group SEM reveal that the effects of four fraud factors differ significantly across projects with different investment characteristics. The results of fsQCA suggest that there are three typical driving mechanisms for GWBs. Furthermore, this study develops a project information transparency framework and a "greenwashing tree" to form a systematic understanding of GWBs. Finally, on these bases, this study provides targeted suggestions and policy recommendations for governing contractors' GWBs.

Cultural intelligence can effectively solve cross-cultural problems, which encourages contractors to adapt to the new international market environment. However, in international projects, the effectiveness of cultural intelligence can be complicated or moderated by the host country’s institutional environment. This study explores the impact of cultural intelligence on the performance of international construction projects and the moderating effect of institutional distance, then compares the differences between Chinese contractors and Korean contractors. In this paper, eleven hypotheses were proposed, and an empirical analysis was conducted to test the hypotheses and measure the impact of cultural intelligence on the performance of international construction projects and the moderating effect of institutional distance. The results from 144 valid questionnaires indicated that process capability and path capability in cultural intelligence have a significant positive impact on the performance of international construction projects, while formal institutional distance can positively moderate the relationship between position capability and international construction project performance. Moreover, Chinese and Korean contractors display significant differences in the moderating role of institutional distance. These findings provide theoretical support and strategic suggestions for not only contractors in China and Korea but for all international contractors seeking to improve project performance through cultural intelligence and institutional distance.

The endangered status and narrow distribution in Syringa pinnatifolia , a sub-alpine shrub species, were primarily caused by its poor drought adaptation related to its lower degree of physiological adjustment despite its greater degree of morphological plasticity. Although deep rooting is usually considered a drought-tolerant trait, we found that Syringa pinnatifolia, a deep rooting and hydrotropic shrub, has a limited distribution in arid areas. To elucidate the mechanisms for its narrow distribution, we conducted two experiments to examine the physiological and morphological responses to water availability and heterogeneity in S. pinnatifolia and a widespread congeneric species, S. oblata. We measured gas exchange, water use efficiency, and plasticity index in plants of these two species grown at different levels of soil water regimes and in containers with patched water distribution. Our results showed that high photosynthetic capacity in the narrowly distributed S. pinnatifolia was an important factor enabling its survival in the harsh sub-alpine environment. High photosynthetic capacity in S. pinnatifolia, however, was obtained at the expense of high transpiratory water loss, resulting in lower integrative water use efficiency. Biomass allocation to roots in S. pinnatifolia increased by 73 % when soil water increased from 75 to 95 % field capacity, suggesting that S. pinnatifolia could be less competitive for above-ground resources under favorable water regimes. The horizontal root hydrotropism and vertical root hydrotropism of S. pinnatifolia in soil with patched water patterns were likely related to compensation for leaf water loss at low soil water level, indicating a limited capacity for homeostasis within the plant for water conservation and lower level of inherent drought-tolerance. In summary, greater degree of morphological plasticity but lower degree of physiological adjustment may be the main causes for the hydrotropism and narrow distribution of S. pinnatifolia in the sub-alpine habitats.

The joint effect on the growth of wheat seedlings under Cd2+ stress (0, 0.5 mmol L−1) and [C2mim][OAc] with a series of concentrations (0, 100, 200, 300, 400, 500 mg L−1) was investigated. Physiological characteristics including superoxide dismutases, peroxidases, catalase and malondialdehyde were studied in hydroponic and soil cultures. Results indicated that, compared to samples treated under Cd2+ stress alone, joint treatment groups showed Cd2+ stress was mitigated by ionic liquid at appropriate concentrations (≤400 mg L−1 in hydroponic treatments and ≤300 mg L−1 in soil culture treatments). Use of inductively coupled plasma mass spectroscopy showed less Cd2+ in organelles in the joint treatment group. This phenomenon could be due to [C2mim][OAc] forming metal complexes with Cd2+, thus reducing the amount of free Cd2+ available for absorption by the seedlings.