Heterogeneity of Spatial-Temporal Distribution of Nitrogen in the Karst Rocky Desertification Soils and Its Implications for Ecosystem Service Support of the Desertification Control—A Literature Review

In recent years, the study of soil nitrogen distribution (SND) in rocky desertification control ecosystems has increased exponentially. Rocky experiences severe environmental degradation due to its fragile nature, and understanding (SN) is critical for ecosystem services (ES) support sustainable development. From perspective bibliometrics, this paper systematically, comprehensively, qualitatively quantitatively describes progress, trends hotspots SND field environment. The results show that: 97.40% document type “Article”; shows characteristics rapid growth, volume published articles past three years accounted 34.30% total; active countries are mainly China, Germany, United States, Sweden, Finland, etc. research include karst nitrogen, future tend focus on ecosystem, nutrients vegetation diversity south China. It suggested construct SN management strategy suitable future, strengthen theoretical comprehensively understand put forward according local conditions.