The methodology for evaluating desertification risk includes four sections: (1) estimating soil loss through water and wind erosion (2) evaluating desertification risk based on soil erosion (3) comparing the erosion-based methodology with the environmentally sensitive areas (esas) model and (4) using gansu province in northwest china as a case study. Desertification is the continuous dilapidation of ecosystems in dry lands, this can threaten the livelihood of some of the poorest population and others who depend on these ecosystems on the planet. Land degradation and desertification can affect human health through complex pathways as land is degraded and in some places deserts expand, food production is reduced, water sources dry up and populations are pressured to move to more hospitable areas the potential impacts of desertification on health include: higher threats of. This paper undertakes a direct, comprehensive assessment of the long-term sustainability of desertification rehabilitation in china under a plausible but worst case scenario where governmental interventions, in the form of payments for environmental services (pes), will cease the analysis is based. Analysis of desertification in china 3 pages 727 words december 2014 saved essays save your essays here so you can locate them quickly. Desertification in northwest china (ppt) the share my lesson social studies team has brought together a diverse range of free teaching resources for. Soil degradationand desertification in mediterraneanenvironments j l rubio, &al calvo, eds 1996, geoforiiiaedicioncs logroiio soilsalinizationandlanddesertification.
Desertification is one of the socio-economic problems facing the world today the environment china is one of the countries of the world most affected by desertification, caused great harm to the ecological environment and socio-economic. Desertification represents the greatest environmental challenge of our times, the un warns in a report. A ministry of science and technology task force says desertification costs china about $2-3 billion annually, while 800 km of railway and thousands of kilometers of roads are blocked by sedimentation an estimated 110 million people suffer firsthand from the impacts of desertification and, by official reports, another 2,500 sq km turns to. Synopsis desertification control in china: possible solutions desertified land in china covers 2622 mil- lion km2, or 273% of china’s total land area (1) studies (2, 3) have shown that from the early 1950s to the mid-1970s desertification in china expanded at an annual rate of 1560 km2, or an annual in-crease of 101% from the.
A spatially explicit assessment and analysis of water-eroded desertification and its combating in yunnan province, china. Desertification is one of the most important environmental challenges facing the world today, however it is arguably the most under-reported desertification is the gradual transformation of arable and habitable land into desert, usually caused by climate change and/or the improper use of land. Footprint of research in desertification management in china lijuan miao1, john c moore1, fanjiang zeng2, jiaqiang lei2.
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. Download citation | desertification in c | arid and semiarid china have experienced multiple arid phases throughout the quaternary, and over the past five decades, there have been several periods with relatively high or low rates of desertification and rehabilitation the causes of these chan. Desertification, land degradation and drought (dldd) cost india about 254 per cent of its gross domestic product (gdp) in 2014-15, a new study commissioned by the environment ministry has found.
Written by marijn nieuwenhuis the transformation of china’s territory china’s territory is in the process of historical change and by that i mean to say that its material foundation, the very stuff of territory, is in the process of a literal transformation i am referring to the creeping desertification that swallows every year thousands of square. The study of desertification in china began in 1977 with the un conference on desertification since then, much progress has been made this article reviews progress over the last five years in china a brief description of desertification research in china is given, and developments and changes in.
6 deforestation and desertification in developing countries r k pachauri and rajashree s kanetkar 1 introduction this paper takes a fresh look at two of the major environmental hazards affecting the planet, namely deforestation and desertification, in terms of the nature and magnitude of the problem as faced by the developing world. Geo filestrictly speaking, desertification should perhaps be defined as the making of a desert, but there is considerable disagreement amongst sc. A senior chinese official has said it will take 300 years to turn back china's advancing deserts at the current rate of progress liu tuo, who leads china's efforts to tackle the problem, said investment was seriously insufficient more than one quarter of china is either covered by desert or is.