Based on relevant theories of human geography , physical geography , ecological economics , and ecology , this paper discusses the issue of agricultural development within ecozone 本文以人文地理学，自然地理学，生态经济学，生态学等学科的有关理论为指导，探讨了生态环境脆弱区的农业发展问题。
According to its cause and characteristics of landuse , we can classify such area into two typical areas : area with soil and water erasion and area with land desert 根据其成因和西部土地资源利用特点，可将西部土地生态脆弱区划分为两种类型：水土流失严重型生态环境脆弱区和土地沙漠化型生态环境脆弱区。
The ecological fragile area in western china not only is the area where the contradict between person and ground is most sharp , but also is a typically eco - fragile and underdeveloped area in our country 西部生态脆弱区不仅是我国人地矛盾最尖锐的地区，而且也是典型的生态脆弱区和全国突出的欠发达地区。
This paper puts forward that reducing the agricultural population and adjust the distribution of agriculture are the only solution to the conflict between ecological recovering and existence of population 本文提出了要解决生态脆弱区恢复生态与人口生存之间的矛盾，只有对农业人口和农业产业布局做根本性调整。
The paper contrasts the typical eco - environment characters of western region in jilin province with that of chinese ecozone and come to the conclusion that the western region of jilin province is a restorable ecotone 通过引用中国生态环境脆弱带的有关概念及其分布特征，对照吉林省西部突出的生态环境问题，指出该区是典型的可恢复的生态环境脆弱区。
The nation takes the ways of animal - forbidden in prairie extremely sensitive area so as to guide the transference of part paternalists from prairie and productivity ways and lighten the pressure on prairie at all 为了保护和建设草原并增加牧民收入,国家在草原极度敏感脆弱区以禁牧和生态移民作为比较有效的办法,引导一部分牧民迁出草原,转变生产方式,从根本上减轻草场压力。
According to the assess result , the coastlines along the pearl river mouth are classified into five risk parts and fifteen subdivision risk sections . at last , the paper discusses the response of different risk shorelines to sea - level rise 根据评价结果把珠江口沿岸划分了五个脆弱区，十五个脆弱小区，分别对各脆弱小区的脆弱类型及其对未来海平面上升的影响过程作了分析。
As the major vulnerable zone of sea level rise , liao river delta ( take the city of panjin as the studying area ) is an important industrial development area based on exploitation of the resource of oil and gas and petroleum chemical industry , and is the important coastal wetland , too 辽河三角洲是以油气资源开采以及石油化工工业为主体的工业发展地区，是重要的滨海湿地，同时又是海平面上升主要脆弱区。本文在国内外研究的基础上，运用gis技术，构建了海平面上升灾害风险评估的框架体系，对该区（以盘锦市为研究区域）进行评估。
The authors probed into the reason of ambivalence , pointed out the development relationships among them , and mainly brought forward seven measures : ensuring necessary plantations and studiously increasing yields of grains ; setting up reasonable grains reserves ; increasing the yield of unit area and overall productivity of land , and ensuring gross yields of grains to be increased steadily ; adjusting measures to local conditions , differentiating land varieties among the total land of gansu province to produce grains ; continuously adjusting structure of production , improving agricultural economy benefits , and increasing farmer incomes ; realizing essential self - support of gross grains , meanwhile dealing with well regional and structural scarcity gradually ; strengthening outcomes of ecological construction , increasing the intensity of ecological compensation , utilizing strategy of virtual water to solve grain safety to be fragile and sensitive regions of ecology , and realizing agricultural sustainable development 文章分析问题的矛盾所在，指出三者的辨证发展关系，并主要提出七点措施：保证一定的播种面积，努力增加粮食产出；建立合理的粮食储备规模；依靠科技，主攻单产，提高土地的综合生产能力，保证粮食总量稳定增长；因地制宜、分类指导省内不同地区的粮食生产；继续调整农业生产结构，提高农业的经济效益，增加农民收入；实现省内粮食总量基本自给的同时，逐步解决好区域性、结构性短缺问题；巩固生态建设成果，加大生态补偿力度，利用虚拟水战略解决生态脆弱区、生态敏感区等局部地区的粮食生产安全，实现农业可持续发展。
Against the background of the development of western china , we should not only restore and reconstruct the natural environment in the ecologically vulnerable areas that have suffered long - standing destruction , but also bring into play its potential advantage of rich resources , eliminate poverty and combine closely environmental construction and economic development , thus accomplishing sustainable ecological , resource , population , economic and social development 当前，在西部大开发的大视野下，不仅要对长期以来遭受破坏的生态脆弱区自然环境进行恢复和建设，而且要发挥潜在的资源富集优势，消除贫困，把环境建设与经济协调发展紧密结合起来，实现西南岩溶山区生态、资源、人口、经济、社会的可持续发展。
