Patent Examination Cooperation Hubei Center of the Patent Office, SIPO, Building B14, Guang Gu Jin Rong Gang, 77 Guang Gu Da Dao, East Lake High-Tech Development District, Wuhan, China.
Inter-Korean Forest Research Team, Division of Global Forestry, National Institute of Forest Science, 57 Hoegi-ro, Dongdaemoon-gu, Seoul, 02455, South Korea.
Environ Monit Assess. 2018 Feb 8;190(3):126. doi: 10.1007/s10661-018-6466-0.
Drought is one of the most severe natural disasters in the world and leads to serious challenges that affect both the natural environment and human societies. North Korea (NK) has frequently suffered from severe and prolonged droughts since the second half of the twentieth century. These droughts affect the growing conditions of agricultural crops, which have led to food shortages in NK. However, it is not easy to obtain ground data because NK is one of the most closed-off societies in the world. In this situation, remote sensing (RS) techniques and cloud computing climate data (CCCD) can be used for drought monitoring in NK. RS-derived drought indices and CCCD were used to determine the drought-vulnerable regions in the spring season in NK. After the results were compared and discussed, the following conclusions were derived: (1) 10.0% of the total area of NK is estimated to be a drought-vulnerable region. The most susceptible regions to drought appear in the eastern and western coastal regions, far from BaekDu-DaeGan (BDDG), while fewer drought regions are found near BDDG and the Nahngrim Mountains. The drought-vulnerable regions are the coastal regions of South Hamgyong Province, North Hamgyong Province, South Pyongan Province, and South Hwanghae Province. The latter region is the food basket of NK. (2) In terms of land cover, the drought-vulnerable regions mainly consisted of croplands and mixed forest.
干旱是世界上最严重的自然灾害之一，导致严重的挑战，影响自然环境和人类社会。朝鲜（NK）自 20 世纪下半叶以来经常遭受严重和持久的干旱。这些干旱影响了农业作物的生长条件，导致 NK 出现粮食短缺。然而，由于 NK 是世界上最封闭的社会之一，因此很难获得地面数据。在这种情况下，可以使用遥感（RS）技术和云计算气候数据（CCCD）来监测 NK 的干旱情况。使用 RS 衍生的干旱指数和 CCCD 来确定 NK 春季的干旱脆弱地区。在对结果进行比较和讨论后，得出以下结论：（1）估计 NK 总面积的 10.0%为干旱脆弱地区。最容易发生干旱的地区出现在东部和西部沿海地区，远离白斗大山（BDDG），而 BDDG 和内金刚山附近则发现较少的干旱地区。干旱脆弱地区是南咸镜省、北咸镜省、南平安省和南黄海道的沿海地区。后者是 NK 的粮食篮子。（2）就土地覆盖而言，干旱脆弱地区主要由耕地和混合林组成。
