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DISTRIBUTION AND CONSERVATION STATUS OF FISH SPECIES IN RIVER SERLUI IN MIZORAM: PIONEERING DETAILED TAXONOMIC STUDY AND REPORT
Ichthyofaubnal surveys conducted in the River Serlui at different locations and on different dates in the province of Mizoram, done as a pioneering work (since updated), revealed the occurrence of 18 species of fishes belonging to 17 genera, 4 sub-families, 10 families and 4 orders during the entire period of study. These included 9 species under Cypriniformes. 7 species under Siluriformes; and, 1 species each under Beloniformes and Anabantiformes. Distrubution and Conservation status and of each fish species have been discussed in the present communication.
Copyright (c) 2025 Devashish KAR http://creativecommons.org/licenses/by/4.0
Phenotype-specific Drought Strategies in the Invasive Weed Avena fatua
Wild oat (Avena fatua L.) is a widespread invasive weed whose performance is strongly influenced by water availability. We compared two lemma-based phenotypes-W (hairy lemma) and B (glabrous lemma)-under four soil-water levels (80-85, 60-70, 50-60, 40-50% field capacity) in a completely randomized pot experiment. We determined organ dry masses and calculated allocation indices (root-to-shoot ratio, R/S; root and leaf mass fractions, RMF and LMF), leaf traits (total leaf area, leaf number, LAR), and growth metrics (RGR, NAR). Drought reduced aboveground biomass in both phenotypes. The W phenotype showed a prioritized allocation to roots under moderate stress, reflected by its R/S peaking at 0.508, while its LAR decreased by 40% under light stress. In contrast, the B phenotype exhibited a more dramatic fluctuation in leaf resource allocation, with its Leaf Mass Fraction (LMF) increasing by nearly 70% under light stress before plummeting under heavier stress. Growth analysis indicated that the Net Assimilation Rate (NAR) of W was relatively stable under light stress, whereas B's NAR dropped sharply by 47%. These results show divergent but predictable allocation and growth adjustments to water limitation and provide a basis for phenotype-aware management of wild oat.
Copyright (c) 2025 Guodong Li, Jian Xu, Yilong Shi, Xue Liang, Zhengyi Liu, Xingda Chen, Shilin Song, Hao Chen, Lei Wang, Chen Shi http://creativecommons.org/licenses/by/4.0
Integrated Green Construction Technology System and Performance Evaluation for Urban Building Engineering toward Carbon Neutrality
Driven by the national carbon neutrality strategy, the transformation of construction practices toward green development has accelerated; however, the current application of green construction technologies remains fragmented, weakly integrated, and insufficiently quantified in terms of environmental performance. This study constructs an integrated green construction technology system that combines low-energy-consumption material substitution, reusable formwork systems, dynamic carbon-emission monitoring during construction, construction waste recycling, and prefabricated building methods. A performance evaluation index is established through a life-cycle assessment (LCA) framework and carbon-emission accounting model. The results indicate that the proposed system significantly reduces energy consumption, carbon emissions, and material waste throughout the construction phase. The research provides theoretical support and engineering guidance for advancing green construction from policy orientation to systematic technological integration and evidence-based evaluation.
Copyright (c) 2025 Hongren Zhang http://creativecommons.org/licenses/by/4.0
Research on Carbon Emission Calculation of University Teaching Buildings under the Dual-Carbon Goals—Taking a University Teaching Building in Chengdu as an Example
In the context of an increasingly severe global ecological crisis, promoting green and low-carbon transformation has become a major issue that all humanity is facing together. The Chinese government has clearly set the strategic goals of carbon peak and carbon neutrality, demonstrating the responsibility and commitment of a major country. The construction industry, as an important sector in terms of energy consumption and greenhouse gas emissions, its low-carbonization process directly affects the realization of the country's emission reduction targets. This study focuses on a teaching building of a university in Chengdu region. Through a systematic examination of its architectural features, thermal performance of the enclosure structure, energy system configuration and operational energy consumption characteristics, a scientific and comprehensive carbon emission assessment system is constructed, and based on this, multi-dimensional carbon footprint analysis is carried out. This research not only provides data support and technical routes for the subsequent implementation of energy-saving renovations and low-carbon upgrades of the case building, but also creates a replicable model for the sustainable development practices of similar public buildings.
Copyright (c) 2025 Bo Liang, Xiaoxia Lai, Ruihua Wan, Beidong Zhang http://creativecommons.org/licenses/by/4.0
Research on the Mechanism and Path of Sci-Tech Finance Empowering the Sustainable Development of Animal Husbandry
As an important part of agriculture, animal husbandry plays a crucial role in ensuring national food security, promoting rural economic development, and safeguarding the ecological environment. However, the traditional development model of animal husbandry is characterized by high resource consumption and heavy environmental pressure, facing multiple constraints such as insufficient sustainable development level, inadequate scientific and technological investment, and backward financial services. As an important support system integrating technological innovation and financial resources, sci-tech finance has the potential to help animal husbandry transform and upgrade, enhance green production capacity, and strengthen risk prevention and control capabilities. Starting from the connotations of sci-tech finance and the sustainable development of animal husbandry, this paper sorts out the interactive relationship between the two, and based on multiple theoretical foundations such as innovation theory, financial development theory, and sustainable development theory, deeply analyzes the operational mechanisms through which sci-tech finance empowers the sustainable development of animal husbandry in terms of resource allocation, risk management and control, and technological innovation. On this basis, it proposes path choices such as improving sci-tech finance policies, innovating financial product services, constructing a collaborative ecological system, and strengthening talent guarantee. The purpose is to provide theoretical support and practical ideas for improving the high-quality development level of animal husbandry, promoting agricultural modernization and ecological civilization construction.
Copyright (c) 2026 Chang Dou, Guang Yang, Longxian Rao, Jingli Wang, Xin Wang http://creativecommons.org/licenses/by/4.0
Spatiotemporal Evolution and Early Warning for the Non-Agriculturalization of Cultivated Land Based on Multi-Scenario Simulation in Guizhou Province
The non-agriculturalization of cultivated land (NACL) poses a serious threat to food security and sustainable development. This study aims to reveal the spatiotemporal evolution of NACL in Guizhou Province, construct a hierarchical early-warning system, and propose recommendations for optimal land resource allocation. First, geospatial statistical analysis (2000-2020) revealed that the spatial pattern of NACL evolved from a scattered to a contiguously expanding one, with its rate increasing markedly from 2.7% (2000-2005) to 9.65% (2015-2020). This process was primarily driven by four key factors: population density, GDP, road network density, and cultivated land area. Second, the PLUS model was employed to conduct multi-scenario simulations and early warnings for 2035. The results indicate that the early-warning pattern exhibits a significant spatial differentiation, with higher levels in the west and lower in the east. Under the natural development (NDS) and urban expansion scenarios (UES), the risk of cultivated land loss in the western region is intensified, with most areas classified at or above the moderate warning level. In contrast, the cultivated land conservation (CCS) effectively curbs NACL and built-up land expansion, thereby not only reducing warning levels but also aligning more closely with sustainable development goals. This study provides a scientific basis for refining cultivated land conservation policies and promoting sustainable land use.
Copyright (c) 2026 Jiahui Tian, Jiusheng Zhong, Qiwei Chen, Nanjia Cai, Fei Zhang http://creativecommons.org/licenses/by/4.0
DISTRIBUTION AND CONSERVATION STATUS OF FISH SPECIES IN RIVER THING TLAWNG LUI (HILL SINGLA) IN MIZORAM (NORTH-EAST INDIA): PIONEERING TAXONOMIC STUDY AND REPORT
Fish faunal surveys conducted in the River Thing Tlawng Lui (hill Singla) in Mizoram, North-East India Himalayan Biodiversity Hotspot region, revealed the occurrence of 27 species of fishes belonging to 23 genera, 7 sub-families, 13 families and 6 orders. These include 17 species of fishes under Cypriniformes; 4 Fish species under Anabantiformes; 3 ichthyospecies under Siluriformes; and, 1 ichthyospecies each under Clupeiformes, Beloniformes and Cichliformes. Distrubution and Conservation status of each fish species have been discussed in the present communication.
Copyright (c) 2026 Devashish KAR http://creativecommons.org/licenses/by/4.0
Spatiotemporal Mechanisms of Mountainous Urban Expansion Using Nighttime Lighting Remote Sensing—The Case of Guizhou
Nighttime light remote sensing has provided valuable insights into the spatiotemporal development of mountain cities across the karst area. Taking Guizhou as the study case, this study integrates DMSP/OLS and NPP/VIIRS nighttime light data from 1992 to 2022. The optimal threshold for identifying urban areas was determined through conventional data analysis. The extent of built-up areas across eight distinct periods was extracted to examine the spatiotemporal characteristics of mountain cities. The results revealed the following: The urban area of Guizhou has consistently expanded over the past three decades, with the rate and intensity of this growth following an M-shaped fluctuation pattern. The expansion rates of prefecture-level cities were categorized into four types: stable, fluctuating, breakthrough, and gradual. This urban growth predominantly followed a northeast-southwest axis. Guiyang has long served as the urban core of Guizhou, with the core shifting 42.03 km to the northeast over this period. Urban expansion exhibited three primary patterns: ring-like, linear (axial), and punctate. Notably, ring-like expansion was marked by a hollow annulus, while linear (axial) expansion mainly occurred along river valleys near smaller tributaries. The urban core of Guizhou evolved in distinct phases. Initially, Guiyang was the sole micro core, later developing into the primary core. Ultimately, a hierarchical urban structure emerged, with Guiyang as the main core, Zunyi as a secondary core, and a constellation of Kaili, Duyun, and Fuquan Cities forming peripheral micro cores. This system was characterized by Guiyang’s influence over Anshun and the decentralized growth of other cities. These findings offer important insights for urban planning and territorial development in mountain cities, such as those in Guizhou.
Copyright (c) 2026 Bingcheng Feng, Anjun Lan, Song Li http://creativecommons.org/licenses/by/4.0