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Shuitu Baochi Xuebao, 2021 采用X-ray computed tomography（CT）技术研究了果树行间不同油菜间作密度（CK：清耕；L：低密度间作；M：中密度间作；H：高密度间作）对土壤大孔隙特征参数的影响。结果表明：油菜间作改善了果树行间（0—60 cm）土壤大孔隙特征，各土层的土壤大孔隙数量、大孔隙面积、大孔隙度等参数分别较清耕显著提高（P 1 mm）在各土层间的数目多、差异小，并且在0—30 cm土壤剖面上的成圆率最高。中、高密度油菜间作的土壤大孔隙特征参数均优于清耕及低密度间作，而中密度间作的土壤大孔隙分布更均匀 ...
何娜娜 +4 more
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智能科学与技术学报, 2023 作业车间环境是一个高动态、强耦合的复杂系统，一种调度算法无法做到一次训练而终身使用，需要结合车间环境、作业过程、作业任务进行计算实验和渐进式学习。针对作业车间提出了一种基于平行系统理论的平行车间调度模型，实现了调度算法优化和系统演化。针对该模型，阐述了基于多智能体的人工车间调度系统建模、面向车间调度任务的计算实验方法，以及面向虚实系统的平行调度方法，实现了人工系统和实际系统之间的闭环控制，迭代优化。最后，在平行车间调度模型的指导下，设计了平行车间调度系统的技术架构和基本功能。
彭绍明, 熊刚, 沈震, 董西松, 曲之平, 付龙, 陶志坤, 韩云君
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Shuitu Baochi Xuebao, 2023 为探明间作豆科作物对幼龄果园土壤水分、硝态氮含量以及树木生长的影响,并对黄土高原旱作果园土壤肥力提升与可持续发展提供指导,以黄土丘陵区苹果/黄豆复合系统为研究对象,通过测定种植黄豆整个生育期内试验小区水分、硝态氮含量以及果树叶片含氮量和生理指标的变化来评价不同间作密度黄豆对果树生长的影响。结果表明:(1)相较于清耕果园,中密度间作在黄豆花期前对果园土壤水分含量有一定的提升作用,而高密度间作加剧行间水分的消耗,显著降低土壤含水量。(2 ...
安庆蓉 +5 more
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Dianci bileiqi, 2021 并联间隙、避雷器是线路防雷的重要设备,其安装结构在一定程度上短接了绝缘子的有效长度,以220 kV为例,通过试验、仿真计算分析了并联间隙、避雷器对带电作业的影响。首先通过模拟带电作业典型工况开展了间隙放电试验,获取了带避雷器、并联间隙线路带电作业间隙放电特性;然后根据带电作业绝缘配合方法,分析确定了220 kV带避雷器或并联间隙线路带电作业最小安全距离为2.1 m,比常规塔型要求高0.3 m;最后通过仿真建模计算分析了带避雷器或并联间隙线路带电作业空间的电场分布特性 ...
方玉群, 秦威南, 雷兴列, 彭勇
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Integrative Conservation, EarlyView.A framework with eight key components to assess the effectiveness of technical measures to reduce wildlife‐caused agriculture loss. ABSTRACT Technical interventions to reduce wildlife‐caused agricultural losses (e.g., crops, livestock, and fisheries) are essential for human‐wildlife coexistence.
Cheng Huang +8 more
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Integrative Conservation, EarlyView.This study presents a comprehensive review of the 500‐year spatiotemporal evolution of global botanical gardens, identifying three major development stages—initial exploration (1543–1699), steady expansion (1700–1899), and rapid proliferation (1900–2020)—with six distinct sub‐stages. We propose a tripartite driving framework grounded in colonial botany
Shidong Li, Guangzhen Shi, Qingwei Li
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Integrative Conservation, EarlyView.We comprehensively evaluated the seed plant diversity of Jiangxi province to address the regional biodiversity conservation of Asian subtropical evergreen broad‐leaved forests (EBLFs). Higher species diversity of seed plants was observed in eastern, southern, and western Jiangxi, with elevation and precipitation as mainly environmental factors.
Minqin Duan +8 more
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Integrative Conservation, EarlyView.ABSTRACT In today's rapidly urbanizing world, the survival of wildlife in cities faces significant challenges, and the attitudes of urban residents toward wildlife play a crucial role in their survival. Otters, as top predators in freshwater ecosystems who are highly sensitive to environmental changes, had once gone extinct in Shenzhen—a megacity ...
Changning Liu +5 more
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Wildlife Letters, EarlyView.Using radiotelemetry, we found that the movement and home range of the endangered Sacalia bealei varied significantly across reproductive classes and seasons, with males exhibiting greater movement than females during wet and mating seasons. The species exhibits strong aquatic dependence, favoring deep pools interspaced among riffle‐pool sequences ...
Wing Sing Chan +3 more
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Shuitu Baochi Xuebao, 2019 为研究间作对土壤侵蚀的调控机制，采用人工模拟降雨方法分析了生育期内玉米马铃薯间作及起垄在不同降雨强度（40，80 mm/h）和坡度（10°，15°）下的降雨入渗规律。结果表明：（1）生育期内同一坡度同一降雨条件下玉米马铃薯间作的降雨入渗结束时间比单作玉米推迟，入渗开始时间差别不明显）玉米马铃薯间作的入渗量高于单作玉米（P0.05）。生育期内40，80 mm/h雨强下间作的入渗量比单作玉米分别增加了25.75%~69.07%和21.76%~50.95%。同一雨强下间作的入渗速率高于单作玉米 ...
欧阳铖人 +3 more
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