环境恶化、资源枯竭、人口膨胀，被视为影响地球人类长久生存的三大危险因素，同时也严重制约着世界经济的发展与人类的进步、于是，可持续发展战略应运而生，成为世界各国人民的共识和全球共同追求的目标。我国人D数量居世界第一位，自然资源相对短缺．生态环境日趋恶化，这些 The deterioration of the environment, the depletion of resources and the expansion of population are regarded as the three major risk factors that affect the long-term survival of mankind on earth. At the same time, the development of the world economy and the progress of mankind are severely restricted. Therefore, the strategy of sustainable development has emerged as the world’s People’s consensus and the common goal of the world. The number of D in our country ranks first in the world and the relative shortage of natural resources. The ecological environment is worsening, these