辽宁省作为我国东北地区与渤海湾之间的陆海生态要冲，是多个国家级重点生态功能区的分布地，在东北地区乃至全国的生态地位都十分重要。生态安全是我国近年来国土空间规划工作的热点话题，它表征了生态系统的完备性和健康程度，决定了国土空间开发的决策与布局，是实现生态社会可持续发展的前提。因此，为了更好的了解在全球气候变化背景下辽宁省的生态系统健康水平，明确省内的生态安全格局，实现生态社会的可持续发展，本研究针对辽宁的陆域生态系统进行了生态安全综合评价工作，并构建了一套适用于辽宁省的生态安全综合评价指标体系。在生态系统服务功能重要性和生态敏感性的基础上加入了生态系统稳定性作为修正指标。采用气象、植被、土壤和高程等数据，选取了适合的研究指标与方法，对辽宁省的生态安全水平进行了系统且全面的评价，利用生态系统稳定性评价的结果对生态安全评价结果进行修正，并对照辽宁省生态保护布局的实际情况进行了结果检验，得到的主要结论如下：

（1）辽宁省的水源涵养、水土保持和生物多样性维护功能重要性均呈现东南部高，西北部低的格局。水土流失和土地沙化敏感性呈现西北部高，东部和中部偏低的格局。由此集成评价得到的生态安全评价结果也呈现东部安全，中部一般，西部不安全的格局。生态安全区占辽宁省总面积的30.94%，一般安全区占辽宁省总面积的32.78%，不安全区占辽宁省总面积的36.28%。主要与生态系统的气候、植被类型、土壤质地和人类活动等影响因素有关；

（2）辽宁省的生态系统恢复性呈现由东到西逐渐减弱的分布格局，抵抗性格局与恢复性相似，将这两部分内容进行集成评价后得到的生态系统稳定性评价结果的格局为东高西低，稳定和一般稳定区面积占比达66.13%，不稳定区面积占比为33.87%，主要取决于植被类型的差异；

（3）借助生态系统稳定性的评价结果对生态安全评价结果进行修正后，发现辽宁省生态安全水平的分布格局发生了一定的变化。安全区和不安全区均出现了向中部地区扩张的现象，安全的区域由29.16%的面积占比增加至38.05%，不安全区域的面积占比由39.93%增加至44.90%。这与近年来辽宁省退耕还林政策的实施和人居生态系统用地的扩张有关。

（4）将修正前后的生态安全格局与辽宁省生态保护红线和自然保护区分布情况进行对比发现，安全区和不安全区与生态保护红线和自然保护区的重叠度都有所提高，表明修正后的生态安全评价结果更加符合目前辽宁省的生态保护现状，为后续生态保护与修复区域的划定提供了依据。

As a land and sea ecological key between northeast China and Bohai Bay， Liaoning Province is the distribution place of several national key ecological function areas， and its ecological status in northeast China and even the whole country is very important. Ecological security is a hot topic in China's land spatial planning in recent years， which characterizes the completeness and health of the ecosystem， determines the decision and layout of land spatial development， and is a prerequisite for the sustainable development of ecological society. Therefore， in order to better understand the ecosystem health level of Liaoning Province in the context of global climate change， to clarify the ecological security pattern in the province， and to realize the sustainable development of ecological society， this study conducted a comprehensive ecological security evaluation of Liaoning's terrestrial ecosystem. By adding ecosystem stability as a modified indicator based on the importance of ecosystem service function and ecological sensitivity， a set of ecological security evaluation index system was constructed for Liaoning province， and meteorological， vegetation， soil and elevation data were used to select a suitable research method. The main conclusions are as follows.

(1) The importance of water conservation，soil conservation and biodiversity maintenance functions in Liaoning Province shows a pattern of high importance in the southeast and low importance in the northwest. The sensitivity of soil erosion and land sanding is high in the northwest and low in the east and central part of the province. The ecological safety evaluation results obtained from this integrated evaluation also show a pattern of safe in the east， average in the central part， and unsafe in the west. The ecological safety zone accounts for 30.94% of the total area of Liaoning Province， the general safety zone accounts for 32.78% of the total area of Liaoning Province， and the insecure zone accounts for 36.28% of the total area of Liaoning Province. mainly related to the influencing factors such as climate，vegetation type，soil texture and human activities of the ecosystem.

(2) The ecosystem restoration in Liaoning Province shows a distribution pattern of gradually decreasing from east to west，and the resistance pattern is similar to that of restoration. The pattern of ecosystem stability evaluation results obtained after integrating these two components is high in the east and low in the west， with the area of stable and generally stable zones accounting for 66.13% and the area of unstable zones accounting for 33.87%， which mainly depends on the difference of vegetation types.

(3) After correcting the ecological security evaluation results with the help of the evaluation results of ecosystem stability，it is found that the distribution pattern of ecological security level in Liaoning Province has changed to some extent. Both safe and unsafe areas showed an expansion to the central region， with the safe area increasing from 29.16% to 38.05% of the area and the unsafe area increasing from 39.93% to 44.90% of the area. This is related to the implementation of the policy of returning farmland to forest and the expansion of land for human habitat ecosystem in Liaoning Province in recent years.

(4) Comparing the ecological safety pattern before and after the revision with the distribution of ecological protection red line and nature reserve in Liaoning Province，it was found that the overlap of safe and unsafe areas with ecological protection red line and nature reserve has increased， indicating that the revised ecological safety evaluation results are more consistent with the current ecological protection status in Liaoning Province， which provides a basis for the subsequent delineation of ecological protection and restoration areas.