The change of desertification and its driving mechanism in mu-us region in the past 20 years were analyzed by means of using landsat images in three different periods and the data of meteorology. Desertification today in many countries lands are becoming into deserts,and due to the conditions in the world soon we will not be able to take it backthere are two main causes of desertification,one is human activities and the other is climatic variationsthe first and the most important cause of desertification is human activitiesearlier desertification was only a natural formation but day. Analysis of rocky desertification in central guizhou, china, using landsat satellite data sp luo soil and water conservation technology consulting and. Annals of arid zone 48(1):19-23, 2009 human activity and state policy analysis on aeolian desertification in china tao wang, lihua zhou and guojing yang.
Analysis of desertification and wood land distribution: a case study on the balinyou banner of inner mongolia, china m guo a, y liu a xf wang b, china land desertification and frequent sandstorms in the spring strongly affect the growth of grassland vegetation and. Combating desertification in china (yang, 2009, 2010, 2012a, 2012b yang and wu, 2010, the meta-analysis was conducted in 16 sites spanning all six provinces, to study multi-actor collaboration that addresses the types and institutional design principles of collaboration’s influence on the performance of desertification control. By the end of the 13th meeting of the parties to the united nations convention to combat desertification in ordos, china, 113 countries had agreed to specify concrete targets with clear indicators, to rehabilitate more land and reverse degradation, which currently affects over a third of the world’s land resources. In general, the results of systematic monitoring, and analyses of the causes of desertification and the contemporaneous human impacts, suggest that desertification in china has been primarily.
Given the distribution of soils with different qualities, the need to attain a semblance of food security by existing populations coupled to the potentials of desertification, an important concern, as posed by conway and barbier (1988), is the level of risk faced by the people with respect to sustainability. China’s environmental problems, including outdoor and indoor air pollution, water shortages and pollution, desertification, and soil pollution, have become more pronounced and are subjecting chinese residents to significant health risks. Analysis of dynamic change degree of rock desertification in northern guangdong, china from 1988 to 2006 - free download as pdf file (pdf), text file (txt) or read online for free this article takes karst-influenced lianjiang watershed in northern guangdong as the research object, the article have interpreted non-karst district and karst district imagery respectively, and have constructed. Karst rocky desertification is a kind of land degradation which has happened in fragile karst mountain ecosystem in southwest china as one of the most serious ecology-environmental problems, it astricted the sustainable development of the area in recent years, the research on the rocky desertification is very active and has made great progress in many areas at home and abroad.
Desertification, land degradation in arid, semi-arid, and dry sub-humid regions, is a global environmental problem accurate assessment of the status, change, and trend of desertification will be instrumental in developing global actions to prevent and eradicate the problem. Desertification in china: an assessment in china, desertification has usually occurred in regions in and around gobi extent of desertification from the 1950s to 2005 in china were assessed based on this analysis, the area of desertification in 2000 in arid and semiarid china totaled 38, 57, 00 km 2. In march 2015, a year after the obor strategy was proposed, wang wenbiao, chair of china elion resources group and a member of the chinese people’s political consultative conference, put forward an anti-desertification proposal during china’s once-a-year parliamentary session. In the face of increasingly serious grassland desertification, china has made great efforts to combat desertification and a series of key national ecological projects has been launched.
The gobi desert is expanding at an alarming rate, in a process known as desertification the expansion is particularly rapid on the southern edge into china, which has seen 3,600 km 2 (1,390 sq mi) of grassland overtaken every year by the gobi desert. Desertification has been considered as one of the biggest environmental issues at the global level it threatens large area of drylands and could bring severe consequences for 2 billion population thus to combat it has been one of the most urgent missions for the world. The heihe river basin is the second largest inland river basin in the arid region of northwestern china, and aeolian desertification is one of the most serious environmental issues it faces monitoring and analysis of the dynamics of aeolian desertification in this region could improve the. Desertification, is a form of land degradation, by which fertile land becomes desert what does land degradation mean for health these social and environmental processes are stressing the world's arable lands and pastures essential for the provision of food and water and quality air.
The typical arid area in northwest china covers about 25% of the whol e territory, mostly desert and gravel plain known as gobi during the past 50 ye ars, the rapid extension of desertification has become more and more severe. China the present average annual rate of desertification/land degradation for the country is of the order of 06%, while in such places as boakong county, north of beijing in hebei province, it rises to 13%, and to 16% in fenging county. Abstract abstract- desertification is a serious threat to the sustainability of the environment and to human habitation kerqin sandy land is the largest sandy land in china, and is one of the most important origins of sandstorms in northern china.
He has authored, co-authored, and edited eleven books, including technology and development, local government and politics in the third world, environmental policies in the third world, water resource management, and modernizing china. Ecosystems and human well-being: desertification synthesis iii the millennium ecosystem assessment was called for by united nations secretary-general koﬁ annan in 2000 in his report to the un general assembly, we the peoples: the role of the united nations in the 21st century.
Solving the cashmere crisis share 13 comments by kate abnett centring on mongolia and inner mongolia (an autonomous region within china that borders mongolia), and using only the finer, longer and whiter fibres “desertification also exacerbates economic hardship for herders and drives them into poverty and displacement to urban. An analysis on the trend of land desertification in northern china during the last decade based on examples from some typical areas zhu zhenda wang tao (institute of desert research, chinese academy of science, lanzhou. And comparison analysis was conducted and the results showed that, over the 40 years, guangxi karst rocky desertification area has significantly changed guangxi has typical karst environment and is one of the most serious areas of rocky desertification in southwest china provinces, thus our research on this has great practical significance. One project being closely scrutinized by chinese and foreign scientists is a vast, multi-decade scheme aimed at abating desertification — the largest of several regional efforts to increase forest cover in china.