spruce pine (Pinus contorta Loud.)是什么意思

网络释义

用法例句

Distribution characteristics and seasonal dynamics of Cu and Zn in shrub-marsh plants in mountainous areas of Northeast China;

东北山地灌木沼泽植物铜、锌分布特征及季节动态

Research on seismic acquisition methods in the mountainous area;

山地地震勘探采集方法研究

On the green land landscape design of the residence in mountainous area;

山地居住小区绿地景观系统设计浅议

Urban Design Methods for Planning of Mountain Cities——Design of the Yanduhe Town in Hubei;

山地城镇规划中的城市设计方法——以湖北沿渡河镇为例

Effect of Grazing Pressure and Soil Fertility on Net Pasture Production of Subtropical Mountain;

牧压和肥力对亚热带山地牧草净生产的影响

Based on the analysis of the envirnmental characters of natural resources in mountain areas, this papergave out some measures of sustainable development of the natural resources.

本文通过分析山地自然资源环境的基本特征，从开发模式、利用规模和适当的开发场所三方面论述了山地自然资源可持续开发对策，并指出了在山地自然资源可持续开发过程中应重点注意的问题。

The growth of Metasequoia glyptostroboides plantations with different ages and slopes in mountain areas of South China was studied.

对南方山地不同年龄和不同坡位水杉人工林的生长状况进行全面调查与比较分析,结果表明:27 a生水杉胸径速生期出现时间比32 a生水杉提前4 a,其持续时间也延长2 a,表明27 a生水杉人工林生长状况明显好于32 a生林分;不同林龄水杉林树高速生期持续时间均为6 a,但27 a生水杉人工林树高速生期出现时间提前11 a;27 a生水杉人工林蓄积量比32 a生水杉林多1。

Experiment on plantation of Acidosasa edulis at mountain area showed that it was a good bamboo species for plantation and development with advantages of tolerance of drought and poor soil.

通过黄甜竹山地造林试验,主要研究不同造林时间对成活率和发笋的影响,总结了黄甜竹山地造林技术。

Excellent Example of Traditional Villages in Mountainous Region of Loess Plateau——Shijiagou Village in Fenxi County, Shanxi Province;

黄土高原上传统山地窑居村落的杰出之作——山西汾西县师家沟古村落

Feasibility analysis of wind resource development in Guangxi mountainous region by an example of Mountain Darong;

广西山地风能资源开发利用可行性分析——以大容山为例

Studies on bulblet development and carbohydrates metabolism in bulbs of Lilium Oriental hybrids grown in mountainous region;

东方百合鳞茎的山地膨大发育与养分积累研究

Cultivating techniques of green fruits on mountain land in Chengde region;

承德山地无公害绿色果品生产技术

Experiment on culture of many economic forest trees was made in mountain land in Qingyuan county with an altitude of 930 meters.

在庆元县海拔930m的山地上进行多种经济林木栽培试验，表明锥栗适宜栽培推广，柿树具有良好的结果性能，桃、梨、南方苹果可以发展，但须加强病虫防治，枣、李、板栗等经济林木有待进一步试验。

The trial for building the mountain land system in Huaihua defined that the property right of mountain land belongs to the village economy cooperative.

本试验针对怀化地区山地制度建设问题,通过建立山地档案制度,使山地产权制度、使用权流转制度和山地开发管理制度更趋规范化、科学化,消除由于流转不规范而影响山地开发的隐患,对促进山地的集中,规模开发和利用,提高山地生产力取得了明显的成效。