查询词典 shelter belt

The decrease in farming land and the increase in forestry and grass land resulted from adjustment of agricultural structure and the implementation of Three North Shelter Belt and other anti-desertification projects , while the degradation of pasture resulted from unreasonable human being activities and pasture tenure.

耕地面积减少和林草地面积增加主要是由于农业生产结构的调整和"三北"防护林工程及其他治沙工程的实施，而草原持续退化主要是不合理的人为活动和草原使用"责、权、利"不明确等因素共同造成的。

In this paper, it mainly adopts an analytical method of contrast, with shelter belt and noshelter belt are research object, though field survey and soil fertility index analysis, discussJilin province Nong\'an Fulongquan town mechanism fertility degeneration of chernozem.

本文主要采用对比分析的方法，以防护林带和非防护带两种不同生境影响下的土壤为研究对象，通过田间调查和对土壤肥力指标分析，探讨了吉林省农安县伏龙泉镇境内黑钙土土壤的退化机理。

The analysis of the fungal community similarity between different ecosystem-types showed that farmland soil and shelter-belt soil had the highest similarity, indicating that the soil moniliaceous hyphomycetes in this two ecosystem-types had more common species.

对不同生态类型土壤中淡色丝孢菌的相似性分析发现，农田和防护林带生境的相似性系数最大，说明这两种生境具有较多的共同物种；湿地和城市花园生境的相似性系数最小。

This paper evaluates the water conservation effects of the young forests of the Shelter Belt Program of the Zhujiang Valley from three hydrologic levels of crown canopy, litter layer and soil layer, based on field investigations and measurements.

本文在对珠防工程监测样地调查、测定的基础上，从林冠层、枯落物层和土壤层3个水文层次对珠防二期工程幼林的综合持水能力进行了评价。3 a-4 a生珠防林幼林的综合持水量在2 355.25-2 457.08 t/hm^2之间，比荒山高

The spatial pattern of ecological corridor is "a ring two belts four radials","one ring" refers to the rural Link (A30) green belt,"two belts " refers to the Hangzhouwan shelter belt and Chongming shelter belt,"four radials" refers to the benchmark for the rural Link to the outskirts in four directions radiation, putting all the country parks together to form a system.

生态廊道的空间格局为&一环两带四射&，&一环&是指郊环线(A30)绿化带，&两带&是指杭州湾防护林带和崇明防护林带，&四射&指以郊环线为基准向郊区四个方向辐射，将其他生态廊道及各郊野公园连在一起形成一个体系。

This shelter belts in the last century to create the 1960s, was the first successful creation of artificial coastal shelter belt, with a high reputation.

这条防护林带，于上世纪六十年代营造，是我国第一条人工营造成功的沿海防护林带，具有极高的声誉。

With the socio-economic development, extensive use of modem production technique and the implement of new land contract arid forestry policies, the cropland shelter belt system set up during 1960s-1970s in Manass River Valley, even Xinjiang, needs to be changed in ideas and production techniques and to build new system of shelter forest and adapt to the new rural area construction.

随着社会经济发展、现代生产技术的广泛应用及新的土地承包、林业政策法规的贯彻，玛纳斯河流域绿洲在20世纪60、70年代建立的农田防护林体系，需要在思想观念及生产技术等方面有相应的变化，建立新的防护林体系，适应新农村建设。

Belt in Kashi District, Xinjiang Uyghur Autonomous Region, China, the shelter belt is managed

疆维吾尔族自治区喀什地区的53600 公顷的林网林带，此林带的管理依据FSC 原则和标准并同时申请

Through observation and study,the optimum designing programs are showed as follows:the cross degree between shelter belt and do minant wind direction should be more than 45 degree,the main forest belt distance should be from 150 meter to 200 meter,the sub belt distance should be from 230 meter to 700 meter,the best belt structure is sparse and transparent structure.

通过观测和研究，得出风沙区农田防护林带的走向与主风方向的交角，不能小于 45°，主林带间距 15 0m——— 2 0 0m ，副林带间距 2 3 0m——— 70 0m ，林带结构以疏透结构为最好，主林带一般由主林木 5— 6行组成，副林带由 2— 3行组成，再在迎风面和背风面配置 1行— 2行灌木和针叶

Article 8 For national focal point shelter belt, and forest for special uses, the competent forestry authority of State Council shall produce opinions and report to the State Council for approval, then promulgate it; for local key shelter forest and forest for special use, the competent forestry authority of the people's government of a province, autonomous region or municipality directly under the central authority shall produce opinions and report to the people's government at the same level for approval, then promulgate it; for other shelter forest, timber forest or special-use forest as well as economic forest or fuel forest, the competent forestry authority of people's government at county level shall demarcate according to the state's relevant regulations on forest categorization and the arrangement and organization of the People's government at the same level, and report to the people's government at the same level for approval and promulgation.

第八条 国家重点防护林和特种用途林，由国务院林业主管部门提出意见，报国务院批准公布；地方重点防护林和特种用途林，由省、自治区、直辖市人民政府林业主管部门提出意见，报本级人民政府批准公布；其他防护林、用材林、特种用途林以及经济林、薪炭林，由县级人民政府林业主管部门根据国家关于林种划分的规定和本级人民政府的部署组织划定，报本级人民政府批准公布。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。