查询词典 plantation

New method about large areas of artificial pure forest carbon meterage according to the status quo of our China forestry were put forward, i.e., to study the carbon reserves in different artificial forests based on their ages to provide the basis for plantation functional evaluation of the carbon storage.

最后根据我国的林业现状，对大面积的人工纯林碳汇计量的方法提出了一种全新的想法，即从树木的年龄入手研究人工林不同林龄时的碳汇储量，为评价人工林的碳储功能提供依据。

The results indicated as follows:the total nutrient elements accumulation of various Slash Pine stands amounted to 1273.83-1615.88kg/hm2,of which stem occupied about 60%. The nutrient retention accounted for 111.46-133.39kg/hm2*a,which is higher than that of either Chinese fir or Masson pine plantation. The nutrient return equalled to 90.43-105.09kg/hm2*a. Nutrient elementsturnover period is long while cycling rate is lower. The net production per ton needs 13.19-14.81kg nutrient.

结果表明：湿地松林分中养分元素总积累量为1273.83-1615.88kg/hm2，树干约占60%，积累速率为111.46-133.39kg/hm2*a，高于杉木和马尾松，归还量仅有90.43-105.09kg/hm2*a，其周转期长，养分循环速率低，每生产1t有机物需要上述养分元素共13.19-14.81kg。

Objective To analyze occlusive factors on stability of denture plantation and investigate the method to maintain long-term stability of implants.

目的 分析影响种植义齿稳定性的咬合因素，保持种植体的长期稳定。

Malaysia's Plantation Industries and Commodities Minister Peter Chin said last week,"Once the prices of CPO and palm olein are too high, there is a tendency for consumers to switch to other oils that are less expensive," he said.

马来西亚种植业及商品部长彼特钦上周说，"一旦毛棕榈油及棕榈油精价格过高，消费者就有可能把目标转向价格低一些的其它油类。"他说。

Limited by the spatial resolution, it is difficulty to extract small pieces of the distribution of soil and water conservation practices, such as terrace, orchard, grass, plantation land and dam land based on these images.

梯田、果园、人工林草地和坝地等水土保持措施呈小片状分布，由于受到分辨率的限制，不能有效提取。

The carbon storage in different organs was positively related to the biomass of corresponding organs. Stem accumulated the highest carbon storage, comprised 52.20% of carbon storage in overstory trees, the rest in branch, leaf, bark and root, etc., seized 47.80%. The annual net productivity of 7-year-old A. crossicarpa plantation was 20.06 t/(hm^2a) and annual carbon fixation was up to 9.86t/(hm^2a).

厚荚相思各器官碳贮量与其生物量成正比例关系，树干的碳贮量最高，占乔木层碳贮量的52.20%，树枝、树叶、树皮和树根等碳贮量共占乔木层的47.80%。7年生厚荚相思人工林乔木层年净生产力为20.06t/(hm^2a)，碳素年净固定量为9.86t/(hm^2a)。

The present study investigatated the effect on the diversification of weed community, including weed abundance, dominance, evenness, biomass, and mean height after mulching straw and intercropping white clover in the tea plantation from 2005 to 2006. The results were as follows: 16 families and 31 species were found in total. In April, the dominant species characterized with slow growth, lower biomass, and less than 30 cm height; in July those who grow faster with higher biomass and height became dominant; In September, these malignant communities reduced, while the oxalis and diffusa characterized with lower biomass and low height gradually increased. In the three seasons, the weed abundance, community diversity and evenness increased, and the dominance, the biomass and average height of weeds remarkably reduced after intercropping white clover and muching straw.

结果表明：茶园共有杂草16科31属31种，春季（4月）以生长速度较慢、生物量小、株高在30 cm以下的杂草为主，夏季（7月）以生长快、植株高和生物量大恶性杂草为主，秋季（9月）恶性杂草开始减少，酢浆草、白花蛇舌草等生物量小、株高矮的杂草逐渐增多；稻草覆盖处理茶园春、夏和秋季3个观测时期杂草物种丰富度、多样性、均匀度等指数均高于清耕对照，优势集中性指数低于清耕对照；间种白三叶草处理春、夏和秋季3个观测时期杂草总数量和生物量均显著低于清耕对照，夏、秋季杂草平均株高显著低于清耕对照；稻草覆盖和间种白三叶草处理春季茶芽重和产量显著高于清耕对照，鲜叶中游离氨基酸含量高于清耕对照，茶叶感官评审得分高于清耕对照处理。

The company also actively developed plantation and pasturage, and founded a series of forestry farms and pasturages. Through this measure, a part of Gansu's forest had a reasonable business. To some extent, it promoted the pasturage level and met the needs of the people's life.

同时，公司还大力发展森林和畜牧事业，创办了一系列的林场和牧场，使得甘肃的部分森林得到了合理的经营和保护，一定程度上促进了甘肃畜牧事业的发展，满足了人民生活的需要。

Pastureland shelterbelt is a special kind of protective plantation.

草牧场防护林是具有特殊作用、功能和意义的防护林林种。

A 75-day-long pot experiment was carried out to study effect of plantation of ryegrass on dynamic degradation of phenanthrene in soil.

研究了种植黑麦草对土壤中3环多环芳烃菲的动态降解作用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。