In order to avoid the re-greening only by using machine, this study is targeted at the utilization of mining sites in the suburbs of the city as a resource for optimizing and improving the living space to the greatest extent. On the basis of the analysis and evaluation of land damage at Meishan Mountain in Ma’anshan, the study evaluates the ecological sensitivity using ArcGIS technology, AHP and weighted superposition method, which comprehensively combine restoration ecology, landscape architecture and industrial heritage protection and development. It is aimed at seeking the optimal development and utilization of low-efficiency land after mining. The results show that: 1) The factors influencing the ecological sensitivity assessment are ordered from the largest to the smallest as surface cover >terrain>soil>hydrology>artificial facility interference; 2) The moderate and above sensitive areas is 16.56 hm~2, accounting for 48.75% of the total study area; human production and living behavior directly affect the current ecological environment; and 3) The Meishan mining site in Ma’anshan can be divided into 5 types of scenarios, and 3 types of landscape reconstruction methods(ecological restoration approach, disaster prevention approach and landscape resource approach) are comprehensively used to achieve the goal of taking the mining site as resources for utilization.
1971年,联合国教科文组织提出世界“人与生物圈计划”(简称MAB计划),这是针对全球面临的人口、资源、环境问题发起的一项政府间跨学科大型综合性研究计划。从1979年开始,我国长白山、九寨沟、卧龙等29个著名自然保护区陆续被认定为世界生物圈保护区,世界生物圈保护区已成为实施《生物多样性公约》和《21世纪议程》的重要基地,在全球环境与发展领域中具有重要的地位和作用。
<正>胶东卫矛,为卫矛科卫矛属直立或蔓性半常绿灌木,有较强的攀援能力,在林业上,近几年用于治理干旱土崖、裸露陡坡效果极佳。2009年8月陕西省苗木繁育中心利用全光照喷雾苗床,对胶东卫矛嫩枝扦插育苗进行了试验研究,取得初步成功。
对蒙古扁桃采用营养杯育苗和大田育苗技术进行了试验研究,结果显示,采用营养杯育苗,出苗率高于大田育苗;秋季进行种子处理和播种,其出苗时间、出苗势、出苗率及幼苗生长情况均优于春季;在育苗时进行充分的种子处理是获得较好的育苗效果的关键。
选取贺兰山东麓山前洪积扇、河东鄂尔多斯台地西缘丘陵区和银川市内不同的造林立地条件。在不同季节采用直播、栽植1年生裸根苗、1年生营养杯苗等措施进行造林试验。结果显示,1年生营养杯苗造林成活率最高,效果最好;春、秋季直播造林和1年生幼苗栽植造林效果较好。
吉农高新技术发展股份有限公司是吉林省农业领域首家高新技术企业,公司注册资本6300万元.现有员工450人.高级科技人员184人,博士12人,硕士29人,国家和省级拔尖人才及享受政府特殊津贴的专家20人.公司主业--玉米种业规模、效益在全国名列前茅,在全国农业百强中名列第八位,玉米种业位居三甲,特用豆年出口创汇在同类产品居外贸企业前列.