谷地植物景观保育性调控策略——以鸡公山武胜关为例

武胜关谷地位于古北界和东洋界交汇处，独特的过渡地带造就了丰富植物资源，植物景观保育性调控有助于维持场地稳定可持续发展。基于对无人机技术和GIS的运用，获取了武胜关谷地的自然资源、地貌、水文、视域等特征，以及生态敏感性（保育等级）和植物生态位类型分布。结果显示：（1）研究地整体地势由西北向东南逐渐升高，且为典型的谷地类型；（2）多样的坡向变化带来了不同的太阳辐射和沿路可视域变化，主要呈现出研究地中段道路两侧太阳辐射量偏低且被人为干扰可能较大的特点；（3）高敏感地区主要分布在研究地南侧，高土壤肥力地区主要分布在阔叶林区、喜水植物适合分布在道路两侧汇水区、阴性植物主要适合分布在道路南侧。依据分析结果，结合生态位、景观异质性、边缘效应等理论，从分区控制、地带防护、植被斑块改造与植被选择以及可持续管护4个方面，提出了武胜关谷地植物景观保育性调控的系统性策略。研究在自然景观资源保护、植物景观资源的可持续发展等方面有着重要的意义，未来可在小尺度的可操作性上进行更进一步的探索。

Conservation regulation strategy of plant landscape in valley: Jigongshan Wushengguan valley as an example

Wushengguan Valley is located at the intersection of the Palaearctic Realm and Oriental Realm, its unique transition zone has formed abundant plant resources, and the plant landscape conservation regulation contributes to keeping the site stable. Based on the unmanned aerial vehicle technology and application of GIS, we obtained the natural resources, landform, hydrology, field of vision and other characteristics of Wushengguan Valley, as well as ecological sensitivity (conservation level) and plant niche type distribution. The results show that: (1) The overall topography of the site gradually increases from northwest to southeast, and it is a typical valley type; (2) Various slope position changes bring different changes in solar radiation and the visual field along the road, mainly showing that the amount of solar radiation on both sides of the road in the middle of the study area is low and the interference may be large; (3) Highly sensitive regions are mainly distributed on the south side of the research area road, areas with high soil fertility are mainly distributed in broad-leaved forest areas, hydrophilous plants are suitable for distribution on the two sides of the site road, and the sciophytes are mainly mostly ideal for distribution on the south side of the road. According to the analysis results, combined with the theories of niche, landscape heterogeneity, and edge effects, from the four aspects of split range control, zone protection, vegetation patch transformation and vegetation selection, and sustainable management and conservation, we propose a systematic strategy for plant landscape conservation regulation in Wushengguan Valley. The research has important significance in the protection of natural landscape resources and the sustainable development of plant landscape resources. In the future, further explorations can be made on the small-scale operability.