Land use/land cover(LULC) is an important part of exploring the interaction between natural environment and human activities and achieving regional sustainable development. Based on the data of LULC types(cropland, fo...Land use/land cover(LULC) is an important part of exploring the interaction between natural environment and human activities and achieving regional sustainable development. Based on the data of LULC types(cropland, forest land, grassland, built-up land, and unused land) from 1990 to 2015, we analysed the intensity and driving factors of land use/cover change(LUCC) in the Yarlung Zangbo River,Nyang Qu River, and Lhasa River(YNL) region, Qinghai-Tibet Plateau of China, using intensity analysis method, cross-linking table method, and spatial econometric model. The results showed that LUCC in the YNL region was nonstationary from 1990 to 2015, showing a change pattern with "fast-slow-fast" and "U-shaped". Built-up land showed a steady increase pattern, while cropland showed a steady decrease pattern. The gain of built-up land mainly came from the loss of cropland. The transition pattern of LUCC in the YNL region was relatively single and stable during 1990–2015. The transition pattern from cropland and forest land to built-up land was a systematic change process of tendency and the transition pattern from grassland and unused land to cropland was a systematic change process of avoidance. The transition process of LUCC was the result of the combined effect of natural environment and social economic development in the YNL region. This study reveals the impact of ecological environment problems caused by human activities on the land resource system and provides scientific support for the study of ecological environment change and sustainable development of the Qinghai-Tibet Plateau.展开更多
Many scientific and irrational factors exist in the cultural development of the country, in the current housing reconstruction project in the village, residential style, building materials, and architectural culture a...Many scientific and irrational factors exist in the cultural development of the country, in the current housing reconstruction project in the village, residential style, building materials, and architectural culture are not conducive to the Wa architectural culture, history, culture and home and other cultural heritage＇ s protection and development, there is lack of integrity, long-term, historical, cultural, ethnic, heritage qualities and so on. Increased emphasis is on the development of national culture, implementing the development of a good culture, protection, inheritance. Development of national culture is a broad and urgent and we need to address issues that require more in-depth study of scholars and experts, and play to their strengths to further increase the cultural industry development.展开更多
上山文化(11~8.5 ka B.P.)主要分布于钱塘江上游及其周边地区,其遗址群在钱塘江上游的衢江流域内呈现集中分布于南岸下游河段二级阶地边缘的特点。本文利用地貌定量解析的手段,探讨了衢江南北岸河流阶地分布差异、遗址后方山地子流域地...上山文化(11~8.5 ka B.P.)主要分布于钱塘江上游及其周边地区,其遗址群在钱塘江上游的衢江流域内呈现集中分布于南岸下游河段二级阶地边缘的特点。本文利用地貌定量解析的手段,探讨了衢江南北岸河流阶地分布差异、遗址后方山地子流域地貌发育阶段、水系密度分布特征与上山文化立地之间的关联。研究发现,衢江南岸广泛分布着相对高差约20 m的河流阶地,而北岸缺乏河漫滩和第一级阶地;衢江山地流域地貌发育阶段呈现出中游年轻,上游和下游较老,北岸比南岸老的特点,山地流域水系密度在各高程段的分布特征,受流域发育阶段、断层分布以及岩性差异共同影响。上山文化遗址群后方的山地流域处于壮年偏老的地貌发育阶段,地势和缓,水系发育成熟,下游水网密布,这样的山地流域方便古人类进入,开展采集、打猎等活动,也不易发生泥石流等自然灾害。结合阶地的分布特征,南岸下游的二级阶地是相对优越的居住区。展开更多
基金jointly supported by the Second Tibetan Plateau Scientific Expedition and Research of China(2019QZKK0603)the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA20040200)Reconstruction of Historical Cultivated Land and Human Activities around the North Slope of Everest Area of China(42061023)。
文摘Land use/land cover(LULC) is an important part of exploring the interaction between natural environment and human activities and achieving regional sustainable development. Based on the data of LULC types(cropland, forest land, grassland, built-up land, and unused land) from 1990 to 2015, we analysed the intensity and driving factors of land use/cover change(LUCC) in the Yarlung Zangbo River,Nyang Qu River, and Lhasa River(YNL) region, Qinghai-Tibet Plateau of China, using intensity analysis method, cross-linking table method, and spatial econometric model. The results showed that LUCC in the YNL region was nonstationary from 1990 to 2015, showing a change pattern with "fast-slow-fast" and "U-shaped". Built-up land showed a steady increase pattern, while cropland showed a steady decrease pattern. The gain of built-up land mainly came from the loss of cropland. The transition pattern of LUCC in the YNL region was relatively single and stable during 1990–2015. The transition pattern from cropland and forest land to built-up land was a systematic change process of tendency and the transition pattern from grassland and unused land to cropland was a systematic change process of avoidance. The transition process of LUCC was the result of the combined effect of natural environment and social economic development in the YNL region. This study reveals the impact of ecological environment problems caused by human activities on the land resource system and provides scientific support for the study of ecological environment change and sustainable development of the Qinghai-Tibet Plateau.
文摘Many scientific and irrational factors exist in the cultural development of the country, in the current housing reconstruction project in the village, residential style, building materials, and architectural culture are not conducive to the Wa architectural culture, history, culture and home and other cultural heritage＇ s protection and development, there is lack of integrity, long-term, historical, cultural, ethnic, heritage qualities and so on. Increased emphasis is on the development of national culture, implementing the development of a good culture, protection, inheritance. Development of national culture is a broad and urgent and we need to address issues that require more in-depth study of scholars and experts, and play to their strengths to further increase the cultural industry development.
文摘上山文化(11~8.5 ka B.P.)主要分布于钱塘江上游及其周边地区,其遗址群在钱塘江上游的衢江流域内呈现集中分布于南岸下游河段二级阶地边缘的特点。本文利用地貌定量解析的手段,探讨了衢江南北岸河流阶地分布差异、遗址后方山地子流域地貌发育阶段、水系密度分布特征与上山文化立地之间的关联。研究发现,衢江南岸广泛分布着相对高差约20 m的河流阶地,而北岸缺乏河漫滩和第一级阶地;衢江山地流域地貌发育阶段呈现出中游年轻,上游和下游较老,北岸比南岸老的特点,山地流域水系密度在各高程段的分布特征,受流域发育阶段、断层分布以及岩性差异共同影响。上山文化遗址群后方的山地流域处于壮年偏老的地貌发育阶段,地势和缓,水系发育成熟,下游水网密布,这样的山地流域方便古人类进入,开展采集、打猎等活动,也不易发生泥石流等自然灾害。结合阶地的分布特征,南岸下游的二级阶地是相对优越的居住区。
