【摘 要】
:
从植物群落在城市园林之中的应用开始分析,阐述了园林植物群落的含义。对园林植物群落设计的发展状况进行了研究,对设计技术提出了合理、明确的定位,将园林植物群落的设计细
【机 构】
:
黑龙江林业职业技术学院生态工程系,
论文部分内容阅读
从植物群落在城市园林之中的应用开始分析,阐述了园林植物群落的含义。对园林植物群落设计的发展状况进行了研究,对设计技术提出了合理、明确的定位,将园林植物群落的设计细化,将设计落实到具体的单位。
From the application of plant community in urban landscape, the paper analyzes the meaning of landscape plant community. The development of landscape plant community design was studied, and a reasonable and definite positioning of design technology was put forward. The design of landscape plant community was refined and the design was implemented to specific units.
其他文献
Based on the development of the performance of magnetorheological damper,the tremor suppression strategy that uses angle displacement sensor and force sensor to
Aiming at deep desulfurization of gasoline,three amphiphilic catalysts [C18H37N(CH3)3]3+x [PMo12-xVxO40] (x=1,2,or 3) were prepared and characterized.The amphip
The acoustic vibration signal of tank is disassembled into the sum of intrinsic mode function (IMF) by multi-resolution empirical mode decomposition (EMD) metho
A series of directional solidification experiments have been performed to study the effect of cooling rate on the precipitation behavior of MC carbide in nickel
To improve the strength,hardness and heat resistance of Mg-Zn based alloys,the effects of Cu addition on the as-cast microstructure and mechanical properties of
The demand for high performance cast aluminum alloy components is often disturbed by increasing impurity elements,such as iron accumulated from recycled scraps.
Strontium was introduced into CeO2-ZrO2 mixed oxides (CZ) by doping and impregnation methods,and then Pt was impregnated on the Sr-modified CZ to obtain the cat
In-situ ZrB2/AZ91D magnesium matrix composite was successfully synthesized with Al/K2ZrF6+NH4BF4 by means of Direct Melt Reaction.The fabricated ZrB2/AZ91D magn
A navel electron beam welder (EBW) power supply was developed.Compared with the traditional 3-phase control 12-pulse rectifying supplies,it requires a much lowe
羔羊双球菌性肺炎病是由肺炎双球菌感染引起的一种疾病,肺炎双球菌是革兰氏阳性双球菌,在动物机体内容易形成荚膜。由于冬春季节气温低,养殖场户为了保温经常密闭门窗而使圈