Understanding land for high-quality development

<正>Land is the basis for human survival and production, providing food, fuel, fiber, and other ecosystem services(Verburg et al., 2013; Jin et al., 2021). Land-use change is both a cause and consequence of many biophysical and socioeconomic changes(Van and Verburg, 2013). Human land-use activities have a great impact on biodiversity and the ecological environment by changing the ecosystem(Newbold et al., 2015; Asamoah et al., 2017; Tilman, 2017;     

土地变化科学模型方法新进展——简评《土地系统变化动力学与效应模拟》(英文)

Land system change has never been out of human concerns. It is always one of the hottest themes in global environmental change research (Seto et al., 2002; Gutman et al.,     

安徽齐云山丹霞地貌成因

According to the study of some local scholars (Peng Hua et al., 2000), over 400 sites of Danxia landform have been already discovered in China. Chen Guoda (1935), Zeng Zhaoxuan et al. (1978), Huang Jin et al. (1992; 1994; 1996) and Peng Hua et al. (1998; …     

北京南部沙地风蚀物理特征

1 Introduction Wind erosion, which occurred in arid, semiarid and sub-humid areas, is a critical process in land desertification and degradation. It is a global environmental problem (Dong et al., 1996; Gomesa et al., 2003). Previous researches on process…     

Linkages between soil microbial stability and carbon storage in the active layer under permafrost degradation

正The Qinghai-Tibet Plateau (QTP) distributes the largest extent of high-altitude mountain permafrost in the world (Zou et al., 2017), which has different characteristics from high-latitude permafrost (Yang et al.,2010) and stores massive soil carbon.     

末次冰期东亚冰川规模与冰川进退异时性问题

1 IntroductionIthas been accepted thatthe glacialextentin the early stage w as largerthan thatin the late stagein Eastern A sia during the Last G laciation and w as different from Europe and N orth A m erica(Li, 1992; Cui et al., 2000). M any scholars hav…     

New progress of research on water cycle in atmosphere in China

1 Precipitation characteristics Since the 1980s, Chinese climatologists have conducted a lot of researches on the law of precipitation variation in recent 100 years. Zhang Xiangong et al. (1982)[1], Tu Qipu (1984)[2], Wang Shaowu (1994)[3], Chen Longxun, et al. (1998)[4] have carried out researches on temperature and precipitation changes of the last 100 years in China, viewing that China has the characteristics of cold-wet and warm-dry alternations. Shi Neng et al. (1983) studied the rel…     

中国西北半干旱区土地景观变化成因--以榆林市为例

1 Introduction Landscape change is a result of the complex interactions between physical, biological, political, economic and social driving forces (Moody and Woodcock 1995; Apan et al., 2002). Landscape in arid and semi-arid China is extremely vulnerabl…     

区域生态安全动态变化及空间差异定量分析:以陕北黄土高原为例

1 Introduction Ecological security is defined as the goal of stakeholders to create a condition where the physical surroundings of a community provide for the needs of its inhabitants without diminishing its natural stock (Chen, 2002; Wachernagel et al.,…     

安徽淮河流域全新世环境演变对新石器遗址时空分布的影响

Importance has been attached to the research of the impact of Holocene environmental change on the origins of human civilization and human survival at home and abroad by the academic circles (Bevan and Rooseveit, 2003; Binford, 1997; Xia et al., 2003; Zhu…     

典型岩溶农业区土地利用变化对土壤性质的影响——以云南小江流域为例

1 Introduction Because of modifying land-cover (Turner et al., 1991) and management measures of soil (Dalal, 1986), land use changes can cause significant modifications in soil properties (Islam, 2000; Mcalister, 1998; Braimoh, 2004; Lal, 1996; Shepherd, …     

中国干旱区不同成因碎屑沉积物的吹蚀速率研究

1 Introduction The sand deserts in China are the product of long-term wind erosion from clastic sediments and remodified by wind in the arid environments (Wu, 1987; Gao et al., 1993). The origin of aeolian sand is an elementary issue in studying morpholog…     

河南省种子植物区系地域分异研究

Flora refers to the sum total of all plants species found in a certain region during a certain period of time (Good, 1974; Wu et al., 1983). It is the result of florogenesis, plant evolution and historical geographical change (Tivy, 1982; Wang, 1992; Chap…     

青藏高原:地球动力学与环境演变研究进展

1 Introduction The TP is a spectacular field laboratory for analyzing fundamental processes of geodynamics and environmental change as well as their interrelationships (Kutzbach et al., 1993). Being the largest and highest continental plateau with a mean …     

伊洛河流域森林景观变化驱动因素

1 Introduction Landscapes are the outcome of the interaction between socio-economic and natural forces (Wrbka et al., 2004). During the evolution of cultural landscapes throughout the world, human activities have become dominant factors shaping most lands…     

根据MODIS数据推断的中国东北森林物候格局

1 IntroductionPhenology is the study ofthe recurring vegetation cycles and theirconnection to the surroundingenvironm ental factors such as clim ate, hydrology, soil, etc. (W an et al., 1987). Phenologicalrecords provide an integrative indication of the s…     

中国西北水资源利用及生态环境安全

1 Introduction In the 21st century, water resources will become the international and strategic resource instead of petroleum (Kang et al., 1994a, b). At present, the freshwater resources crisis all over the world has made people aware that although water…     

由简入繁，化繁为简：生态＋无人机的“正确”打开方式

在过去的几年时间内，无人机在生态学应用领域取得了快速发展（Koh et al., 2012; Anderson et al., 2013; Whitehead et al., 2014a）。通过与激光雷达、多光谱、高光谱和红外光谱等传感器相结合，无人机技术在生物多样性、动物行为及其数量调查、物候监测、生境监测、野生动植物保护、自然保护区管理、恢复生态学、入侵生态学等领域都得到广泛的应用（郭庆华 等，2016；孙中宇 等，2017；胡健波 等，2018）。我是在2013年开始接触无人机，并关注和尝试将其应用于本人的生物多样性研究中。在近几年的学习和交流过程中，经常有人问我一些无人机相关的问题，比如：应该购买什么型号的无人机？无人机应该飞多高？怎样处理海量的影像数据？怎么提取某个关注的变量信息？我也看到一些研究者以无人机为平台收集了大量的生物与环境数据，却找不到准确的科学问题和适合的研究方法对这些数据进行深入的分析和挖掘。究竟怎样才能将无人机放入生态学家的工具箱呢？什么才是“生态＋无人机”的“正确”打开方式呢？本文将结合自身有限的无人机生态学研究经历来分享我对这些问题的一些认识（因学科背景、专业水平等的差异，本文所提到的不成熟的观点不一定适合所有人）。     

黄河源地区草地退化空间特征

There are about 400 million hm2 of grassland in China, which account for 13% of the grassland in the world and 41% of the total land area of China. It is the biggest terrestrial ecosystem in China (Liu et al., 2003). Due to impacts of global change and ec…     

科学理解土地系统时空动态和综合效应（英文）

正Land is critical to society by providing foods,fuel,fibers and many other ecosystem services that support production functions,regulate risks of natural hazards,or provide cultural and spiritual services(Verburg et al.,2013).By using the land,human have transformed a large proportion of the planet’s land surface.These land use activities have enormous conse-