防护林

Since project of system of 3 north shelter-forest, shaanxi saved zoology environment construction to obtain enormous social beneficial result and economic benefits.

自三北防护林体系工程建设以来，陕西省生态环境建设取得了巨大的社会效益和经济效益。

The first stage is to focus on the shelter-forest in the seacoast and the construction of the infrastructure, to development some plant and agriculture that can become effective in a short time and to train people for the tourism including the local residents, it will last for three years or about.

因此，开发应分阶段进行，先用三年左右的时间，集中力量进行海岸带防护林的建设和基础设施建设，并适当发展短期可见效的种植业和养殖业，做好生态旅游业所需各种人才的培养工作，吸纳当地居民的参与。

Shelter-forest in this area stretched.

这一带的防护林已经成片了。

The first is that the natural landscape has not the strong appeal to the tourists. The second is the shelter-forest in the seacoast has been destroyed seriously, it is difficult to recover the ecological system. The third is the construction of the infrastructure is needed badly. The fourth is because of the low living standard of the local residents; the improvement needs to be considered. The development should be done in stages.

除具备生态环境良好等开发生态旅游业的有利条件外，还必须重视所存在的不利条件：一是现有自然景点尚未对游客产生巨大的吸引力；二是陵水县的海岸带防护林已遭到较严重的破坏，生态建设的任务很重；三是需加强对水、电等基础设施的建设，建设力度较大；四是当地居民的生活水平不高，在开发中还应适当考虑提高居民的生活水平。

Afforestation, build perfect farm shelter-forest system, it is agriculture of Heilongjiang reclamation area is produced firmly, the assurance of high yield.

植树造林，建立完善的农田防护林体系，是黑龙江垦区农业稳产、高产的保证。

How to make " 3 north " shelter-forest project can last, steadily development, realize two roots nature to transform, adopt increase devoted, classification to manage, increase content of science and technology, introduce and build new management mechanism and of all sorts of resource reasonable optimize the measure such as configuration, become henceforth the key of project.

如何使"三北"防护林工程建设能够持续、稳定地发展，实现两个根本性转变，采取增加投入、分类经营、加大科技含量、引进并建立新的经营机制以及各种资源的合理优化配置等措施，就成为今后工程建设的要害。

"3 North " shelter-forest project makes environment of modes of life and relation to their environment of 3 north zone gets clear improvement, produced remarkable society and economic benefits.

"三北"防护林工程建设使三北地区生态环境得到明显改善，并产生了显著的社会和经济效益。

How to do well further Shaanxi saves project of system of 3 north shelter-forest, implementation mountains and rivers-land is elegant, the article offerred rationality proposal.

如何进一步搞好陕西省三北防护林体系工程建设，实现山川秀美，本文提出了合理性建议。

In this study, methods of conventional culture, identifying fatty acid and PCR-DGGE were utilized to analyze soil microbial quantity, fatty acid and bacterial DNA segment in Tarim desert highway forest land, which can provide theoretical foundation for managing Tarim desert highway shelter-forest scientifically.

采用传统培养、脂肪酸鉴定和PCR-DGGE 3种方法分别研究了塔里木沙漠公路防护林地土壤微生物数量、脂肪酸种类和细菌DNA片段的多样性，从微生物学角度为塔里木沙漠公路防护林的管理提供理论依据。

Important shelter-forest and other ecological projects in northeast, north and northwest China, on the middle and upper reaches of the Yangtze River and in coastal areas have taken shape.

组织实施了"三北"、长江中上游和沿海防护林等重大生态工程

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。