邢台市达活泉公园北侧开放绿地规划设计

作为公园主要入口处的绿地,既要有自己的特色又要与园内保持协调。同时作为城市道路旁的开放性绿地,还要充分考虑常住居民和游人的需求,发挥绿地的游、憩、赏的园林功能。因此本规划以城市文化和公园环境为背景,以植物造景为形式,以满足功能需求、突出文化特色为主题,力图创造出环境优美、布局合理,内涵深厚的游憩场所。     

毛乌素沙地土壤水分特征曲线和入渗性能的研究

采用张力计法测定了毛乌素沙地低吸力段土壤水分特征曲线,并用θ=aψ-b模型进行了拟合,分析了各层次土壤的持水和供水能力.结果显示0～20 cm的土壤持水能力最差,但供水能力最强,40～60 cm的土壤持水能力最强,供水能力一般;当土壤吸力达到0.06～0.08 MPa,即土壤容积含水率在1%～3%时,比水容量就已达到了10-1级,标志着土壤水分处于难效水阶段,植物利用比较困难;在室内采用环刀法测定了沙地土壤水分的入渗率,结果显示有植被覆盖的试验区的初始入渗率、稳定入渗率和累积入渗量都比无植被覆盖的对照区大,说明该地区植被对土壤水分的消耗影响显著.     

Impacts of fractal features of soil on moisture infiltration capacity of typical stands in Jinyun mountain of Chongqing city

The soil structure was expressed with fractal dimensions of particle size distribution (PSD), aggregate size distribution (ASD), and soil pore size distribution (SPD). The effect of soil fractal features on soil infiltration velocity and process was studied. The result of the fractal feature shows that fractal dimensions of PSD are obviously greater than those of ASD and SPD, and in different soil genetic horizons, the fractal dimension of ASD has the greatest variability, and shows a downtrend on the top-to-bottom genetic horizon. According to the soil infiltration process curve, the infiltration process was divided into three phases: (1) the initial phase (0–5 min), (2) the transition phase (5–30 min), and (3) the stable phase (30–180 min). In the initial phase of infiltration, the soil structure of soil genetic horizon A was the major influencing factor; in the transition phase of infiltration, the pore distribution of soil horizon AB and soil structure of horizon B were the major influencing factors; in the stable phase of infiltration, the soil structure of horizon C was the major influencing factor to the infiltration velocity. Soil infiltration process is influenced comprehensively by soil PSD, ASD, and SPD. In the overall soil water infiltration, the infiltration in shrub forest land was much faster than that in other land uses, and in the initial infiltration phase, arable land soil infiltration was much faster than that in forest land, and in the stable infiltration phase, the infiltration velocity in forest land was faster than that in arable land. __________ Translated from Journal of Beijing Forestry University, 2006, 28(3): 73–78 [译自: 北京林业大学学报]     

速生丰产林培育目标和主伐年龄研究

林木培育目标应根据林分立地条件类型、林分生长类型等级、森林经营集约度和社会材种需求综合确定。通过林木定向培育提早主伐年龄以获得较高目的材种产量。对大径材培育主伐年龄应先与工艺成熟龄比较后确定。良种化林木培育是森林经营水平的重要标志，与Ⅰ类林分相比仍提早主伐年龄，增加材种产量１倍左右。应具体分析目前速生丰产林生长状况，林龄面积分布等，调整林木培育目标和主伐年龄，以保证森林资源的永续利用。     

诗画对中国古典园林的影响

中国古典园林深受绘画、诗词和文学的影响.中国古典园林一直是循着绘画的脉络发展起来的.绘画理论对于造园起了很大的指导作用,诗词也对中国造园艺术影响至深.本文论述、分析了诗歌、绘画对中国造园艺术的影响,体现出中国古典园林艺术追求诗情画意的美学意味和独特的美学传统.     

浙北地区薪炭林高产栽培研究

浙北地区薪炭林高产栽培研究＊葛万川周健关键词薪炭林栽培体系浙北地区富阳市位于浙江省北部，地貌属浙江西北部低山丘陵区，气候上属我国中亚热带北缘。它在长江下游，中、北亚热带丘陵山地中具有一定的代表性。薪柴是富阳市的主要能源，１９８５年全市耗柴３８万ｔ，占...     

配套栽培措施促进核桃大树丰产的研究*

1987～1990年在北京和山西两点分别进行了配套栽培措施促进核桃大树丰产的试验研究。结果表明:组装配套栽培措施不仅可以促进树体生长和大幅度提高产量,同时也能提高土壤有机质含量和改善土壤肥力状况。在一定范围内,配套栽培措施的迭加数目同增产幅度呈正相关。研究找出了两个试点的最佳处理组合。讨论了组装配套栽培措施的应用问题。     

广州市龙洞公园的设计理念和特色

基于广州市龙洞公园的悠久历史和区位优势,其设计理念强调挖掘本土文化风韵、开发文化景观、延续生态脉络,在公园设计中包括用地布局、功能结构、景观特色、道路设计、绿地种植、生态工程等方面,均展示了地域文化、生态及艺术的大地景观。     

黄檗药用林栽培技术研究

黄檗是珍贵的材、药两用树种,由于不科学的开采和利用,资源受到严重破坏。本文针对黄檗的药用价值论述了药用林的栽培技术,并提出了保护和发展黄檗资源的建议。     

试论园林文态建设

文章从3个方面论述了对“园林文态”的理解,并进一步阐明在当今园林建设实践中,实现“园林文态”的途径。