This thesis believed that nature and human made the deterioration . the main reason is that the number of the livestock in the region overran the number that the glass land can bear 本文认为黄河源区生态环境恶化的原因有自然和人为破坏两方面原因，其中超载放牧是主要原因。
The risk from man - made destructions ( typically terrorism attacks ) is included in the range of major hazard installation assessment , and existing assessment index system is modified 将人为破坏（恐怖袭击）引发事故的风险纳入重大危险源风险评价的研究范畴，对现有的评价指标体系进行了改进。
Given the scenic and relatively unspoiled character of the study area , the study is particularly tasked to formulate frameworks to facilitate conservation , tourism and recreation development 由于新界东南风景优美，大致未受人为破坏，这项研究需要特别制订大纲，以加强自然保育、旅游及康乐发展。
But for the potential weakness of the tcp / ip , the data on it are vulnerable to various attacks . along with the increasing development of it , security has become a tremendously important issue to deal with 但是,由于tcp / ip协议的先天性不足,网络上的信息很容易遭受人为破坏,信息安全的重要性日益增强。
In recent years , commonalty tourism is developing at a tremendous pace , it makes enormous environmental pressure on scenic spots . serious artificial demolish have happened to many famous scenic spots 近年来，大众旅游热的兴起，给风景名胜区造成了巨大的环境压力，许多著名的风景名胜区遭受了严重的人为破坏。
Who destroyed our great wall ? ? from shanhai pass to jiayu pass , the great wall is slowly under destruction due to natural and artificial factors , also endangering traditional cultures of regions along the wall 谁毁了我们的长城? ?从山海关到嘉峪关，长城在人为破坏和自然因素的作用下慢慢毁坏，长城沿线的传统文化也将散失。
Wild populations of orangutans are found only in the tropical forests on the is - lands of borneo and sumatra , and all populations are under severe threat from habitat loss , illegal logging , fires and poaching 野生的红毛猩猩分布在婆罗洲与苏门达腊岛的赤道雨林中，由于栖息地遭非法砍伐、火灾以及盗猎等人为破坏，严重冲击红毛猩猩的生存。
Adopting on - the - spot investigation and data analysis , it was studied that shrubbery disaster that qilian mountain for nature reserve suffered were global change , man - made destruction , disease and insect , and fire damage 摘要采取实地调查与资料分析方法，研究了祁连山自然保护区灌木林遭受的灾害主要为全球环境变化、人为破坏、病虫鼠危害及火灾危害4种。
Nevertheless , they encourage producers directly or indirectly to use more local content and break the reasonable allocation of resources on the base of free market . then they prevent international trade from developing healthily 它直接或间接地鼓励生产商更多地使用区域内的当地成分，人为破坏了资源基于市场配置基础的自然流动，降低了资源的使用效率，进而阻碍了国际贸易的健康发展。
The major reasons that affect the minerals resource safety of our country are : minerals resource management system has abuses , and management level is low ; viewpoint of value of minerals resource is weak ; natural calamity and artificial damage occur from time to time , etc 影响我国矿产资源安全的主要原因有：矿产资源管理体制存在弊端，且管理水平低下；矿产资源价值观念淡薄；自然灾害和人为破坏时有发生等。
