Baoshun WANG, Shunkuan LIAO, Jing WANG, Xiaorui WANG, Minglong YANG
1. Institute of Land&Resources and Sustainable Development, Yunnan Univeristy of Finance and Economics, Kunming 650221, China;
2. Yunnan Academy of Land Resources Planning & Design, Kunming 650216, China;
3. Yunnan Geological Technology Information Center, Kunming 650041, China;
4. City College, Kunming University of Science and Technology, Kunming 650051, China
With advancement of urbanization in China,land urbanization proceeds faster than population urbanization, so that some problems are emerging, such as extensive use of land and farmland loss of urban fringes, which prevents sounding and sustainable urbanization and poses threats to national crop safety. Therefore, it is of significance for promoting rational use of land resources to analyze and determine regional lands in a scientific way in the context of urbanization.
Currently, the research achievements of land use in the process of urbanization in Yunnan Province are accomplished in the implementation of the policy of “constructing towns or cities in mountains”,in terms of effects on eco-environment[1], farmland protection[2], geographical interpretation[3],dynamic mechanism[4]and mode[5].Generally speaking, researches available mainly focus on a specific aspect of the policy of “constructing towns or cities in mountains”, which coincides with practical demands.However, with consideration of “people first” and regional sustainable development, it is necessary to make a comprehensive determination on regional land use in the context of new urbanization in order to intensify strategic significance and perspectiveness of land use, which is meaningful for the role of land resources use in supporting,controlling and adjusting new urbanization in the province.
In the context of national key development strategies, including western development,bridgehead,and one belt and one road,Yunnan proposed a series of policies, systems and mea sures[6]on basis of status quo of Yunnan, such as more mountains, geographical location,more ethnic groups,and backward economic development,and defined the targets, contents,routes and methods of new urbanization, which guarantees sustainable development of new urbanization.Meanwhile, in practices, some prob-lems should be well considered[7-8]nad paid attention to.
New urbanization is distinctly characterized by population urbanization. According to information available,population urbanization proceeds faster in Yunnan and population urbanization, including resident population and registered population, develops rapidly recently, of which the increase of urbanization rate of resident population performs higher(Fig.1).
In the background of new urbanization, the research explored land uses in Yunnan Province and detailed land use situation, involving favorable factors and negative factors.
In accordance with land use planning system in China, farmland protection in a region is mainly observed from the areas of farmland reserve and prime cropland preservation. The larger the areas of farmland reserve and prime cropland preservation, the better farmland protection.
As per Yunnan Land Use Planning during 2006-2020, the objective of farmland reserve should be not less than 5 980 000.00 hm2in 2010, and the practical area was 6 228 631.50 hm2which exceeding the objective. In 2012, the area of prime cropland preservation targets at 5 262 619.42 hm2, and the practical area was far more than that(Fig.1).
It is obvious that both of farmland reserve and prime cropland preservation exceed expected targets, incorporating that farmland protection keeps higher,of significance for regional crop safety and sustainable development.
Huge potential of mountainous land development Yunnan is a mountainous province with more mountains and hills, and less flatlands. According to statistics, the area of lands with slope≥8°,including plateaus and hills,represents 94% of national land, and of dams with slope <8°is only 6% of provincial area[10-11].As per the new research fruits[12], Yunnan Province has 129 county-level divisions, of which 108 divisions are dominated by mountains or semi-mountains or semidams, taking up to 83.72%. It is clear that Yunnan has abundant mountains,with huge development potential.
As an experimental site of comprehensive use of national hills lands resources, Yunnan has made progress. It is surveyed that hills with slopes of 8°-25° account for 47% of province’s total. For example, there are 208 implementation schemes hills have been reported from 106 countylevel divisions of 15 prefecture-level cities and 146 schemes have been approved, totaling 81 600 hm2, laying foundation for further exploration and development of mountain resources in Yunnan Province.
Yunnan has lots of land resources,taking up to 4.1%of nation’s total and ranking the 8th. Land are per capita reaches 0.87 hm2, which is 0.13 hm2higher compared with national level.However, dams, including basins or valleys, suitable for industrialization or urbanization only account for 6% of nation’s total[13].Because of small proportion of highly-qualified farmlands on dam regions, the potential for dam region construction becomes limited,challenging farmland protection and extending of construction lands for Yunnan Province.
Therefore, Yunnan Province proposed to introduce urbanization and industrialization projects to hills or mountains to protect highly-qualified farmlands in dam regions and coordinate the conflict between crop growth and construction.
Pressure on construction lands caused by rapid industrialization and urbanization With acceleration of population growth, industrialization and urbanization,social and economic development has an increasing demand on construction lands, resulting in heavier pressure on construction lands. According to statistics[14-15], the area of construction lands grew by 134% from 2001 -2012 in Yunnan Province and urban population grew by 68%, which indicated that land urbanization rate proceeded faster than population urbanization.
In 2013, urbanization of Yunnan was only 27.24% (urban registered population/total population, similarly hereinafter).If computed as per the expected target of registered population with urbanization rate of 38% in 2020,Yunnan urbanization rate would grow at least 11 points in 2020. If computed as per previous land use pattern, in contrast, urbanization rate of Yunnan would increase one point, constructed town area grow two points, and the constructed area would enhance 22 points from 2013 to 2020, posing pressure on land resources.
Difficulty of land resources development and use by complicated terrain frequent natural disasters Resulting from special geographical location, geological structure, and complicated terrain and climate, Yunnan has become one of provinces suffering the most serious natural disasters in China.For example, disasters in Yunnan are diversified and widely distributed,with a high frequency and severe loss,especially for drought, flood, earthquake, landslide, and debris flow,which are obstacles for land resources development in Yunnan Province.
Terrain and landform is an important factor influencing land resource development and benefits. For instance, the landforms of Yunnan definitely pose pressure on further development of land resources, because dam regions or flatlands have been widely exploited, and the rest land resources require large investments.
Heavy pressure on eco-environment protection of lands Yunnan is drained by six major river systems, including the Yangtze River, the Pearl River, the Mekong, the Red River, the Salween, and the Irrawaddy[15]. Therefore, it is of necessity to give highlights to eco-environment protection.Nevertheless, it is inevitable that local ecosystem would be interrupted by land development to certain extent, affecting balance of ecosystem.In the process of urbanization and industrialization, the restrictions on ecoenvironment confronted by land resources would be much more prominent with development scale and degree expanded.
For a long term, farmland reserve is considered as an index of overall planning of land use,so that it is taken as a key indicator for performance appraisal. If farmland protection target is not accomplished, punishment would follow. On the other hand, for the regions performing excellently in farmland protection, incentive mechanism is not established.Consequently, local governments just focus on the baseline of farmland protection,which is adverse for protection of farmland, damaging land management in a long run.
In practice, a long-term protection and compensation system of farmland should be established in the areas with lots of farmlands and excellent work on farmland protection to stimulate farmland protection activity in a scientific way. Meanwhile, it is necessary to adjust farmland reserve and well coordinate farmland protection, construction and eco-civilization.
According to Yunnan characters,construction lands oriented by urbanization and industrialization should abide by local mountain characters.Specifically, in defining the boundary of construction lands,it is necessary to consider the determination of construction lands in dam regions, as well as the work of flatlands with slopes of 8-25° in adjusted planning, or constructions in dams would be extensive in a disordered way.
Compared with other provinces,biological diversity is a special character and natural advantage of Yunnan Province, which requires highlights and special protection. For example,more attention should be paid to environment aspect in mineral exploitation,township construction, and industrial production.
On basis of overall planning of land use, preferential arrangement,scientific definition of eco-protection red line, and adjustment of township construction to ecological protection and construction would relieve ecological pressure of new urbanization and be of practical significance for advancement of ecological civilization.
[1]LI FC(李富昌).Difficulties and countermeasures of calculation of environment costs in the policy of “constructing township cities in mountains”in Yunnan Province (云南“城鎮(zhèn)上山”環(huán)境成本核算存在困難與解決對策)[A]. China Association for Science and Technology(中國科學(xué)技術(shù)協(xié)會).The memoir of the 2ndsustainable development of mountainous cities(第二屆山地城鎮(zhèn)可持續(xù)發(fā)展專家論壇論文集)[C]. Beijing: China Association for Science and Technology(北京:中國科學(xué)技術(shù)協(xié)會),2013:6.
[2]YANG ZS (楊子生).Exploration of protection strategies of farmland protection in dams in Yunnan Province (云南壩區(qū)耕地保護對策的探討)[A]. Institute of Land&Resources and Sustainable Development of Yunnan University of Finance and Economics,Land Resources Research Specialized Committee of China Society of Natural Resources(云南財經(jīng)大學(xué)國土資源與持續(xù)發(fā)展研究所、 中國自然資源學(xué)會土地資源研究專業(yè)委員會). Research on land development& rearrangement and building urban and industrial projects on mountain land in China(中國土地開發(fā)整治與建設(shè)用地上山研究) [C]. Institute of Land&Resources and Sustainable Development of Yunnan University of Finance and Economics,Land Resources Research Specialized Committee of China Society of Natural Resources(云南財經(jīng)大學(xué)國土資源與持續(xù)發(fā)展研究所、 中國自然資源學(xué)會土地資源研究專業(yè)委員會),2014:9.
[3]MING QZ(明慶忠),WANG JX(王嘉學(xué)),ZHANG WX (張文翔). A geographical interpretation of mountain exploitation and construction of mountainous towns:a case study of Yunnan (山地整理與城鎮(zhèn)上山的地理學(xué)解讀——以云南省為例)[J].Journal of Yunan Normal University (Philosophy and Social Sciences Edition)(云南師范大學(xué)學(xué)報(哲學(xué)社會科學(xué)版)),2012,44(04):48-53.
[4]PAN QY (潘啟云). Research on Dynamic Mechanism of Yunnan Mountainous Urbanization(云南山地城鎮(zhèn)化動力機制研究)[J].Journal of Yunnan Agricultural University(Social Science) (云南農(nóng)業(yè)大學(xué)學(xué)報(社會科學(xué)版)),2014,8(05):27-30.
[5]DENG DY (鄧道勇).New model of constructing township cities in mountains in Haidong Town in Dali City (大理海東探索云南城鎮(zhèn)上山新模式)[N].China Economic Times (中國經(jīng)濟時報), 2014-06-30(A07).
[6]XIE W(謝煒),ZHANG Y(張寅),YIN ZP(尹朝平). Collection of motivations for urbanization in Yunnan Province (聚合新動力,云南城鎮(zhèn)化再上路)[N].People's Daily Overseas Edition (人民日報海外版),2014-04-29(02).
[7]ZHANG WL (張文凌). The issue of“sandwich people” of some farmers in Yunnan who can neither enter cities nor come back to countryside(進不了城又回不了鄉(xiāng),云南部分農(nóng)民被城鎮(zhèn)化成“夾心人”)[N].China Youth Daily(中國青年報),2015-02-09(06).
[8]CCTV news: Could urbanization of change of rural registered permanent residence to permanent urban residence rely on quotas (央視新聞.“農(nóng)轉(zhuǎn)城”變“假轉(zhuǎn)城” 城鎮(zhèn)化也能靠攤派)[EB/OL].http://m.news.cntv.cn/2015/03/23/ARTI1427115000432502.shtml. 2015-03-23.
[9]People’s Government of Yunnan Province (中共云南省委云南省人民政府).Notification of new-type urbanization in Yunnan Province issued by People’sGovernment of Yunnan Province during 2014-2020 (中共云南省委云南省人民政府關(guān)于印發(fā) 《云南省新型城鎮(zhèn)化規(guī)劃(2014—2020 年)》的通知)[EB/OL].http://yn.yunnan.cn/html/2014 -04/19/content_3179728.htm.2014-04-19.
[10]Yunnan agricultural geography (《云南農(nóng)業(yè)地理》 編寫組). Yunnan Agricultural Geography (云南農(nóng)業(yè)地理)[M].Kunming: Yunnan People’s Publishing House (昆明: 云南人民出版社),1981:12-128.
[11]Yunnan Planning Commission (云南省計劃委員會).Land Resources of Yunnan Province(云南國土資源)[M].Kunming: Yunnan Science Technology Press (昆明: 云南科技出版社),1990:121-125.
[12]YANG ZS (楊子生),ZHAO QG (趙喬貴). Study on dividing flatland county,semi-mountainous & semi-flatland county and mountainous county in Yunnan Province based on the second national land survey (基于第二次全國土地調(diào)查的云南省壩區(qū)縣、半山半壩縣和山區(qū)縣的劃分)[J]. Journal of Natural Resources(自然資源學(xué)報),2014,(29)4:565-574.
[13]People’s Government of Yunnan Province(云南省人民政府辦公廳).Notification on major functional regions classification planning of Yunnan province by Yunnan government( 云南省人民政府關(guān)于印發(fā)云南省主體功能區(qū)規(guī)劃的通知)[EB/OL].http://www.yn.gov.cn/yn_zwlanmu/yn_gggs/201405/t20140514_13978.html.2014-1-6.
[14]Notification of new-type urbanization in Yunnan Province issued by People’s Government of Yunnan Province during 2014 -2020, Yunnan Provincial Committee of CPC(中共云南省委 云南省人民政府關(guān)于印發(fā)《云南省新型城鎮(zhèn)化規(guī)劃(2014—2020 年)》的通知)[EB/OL].http://yn.yunnan.cn/html/2014-04/19/content_3179728.htm.2014-04-19.
[15]TANG ZZ, YANG ZS. Problems of Land Use and Management in Development Zones and Enlightenment to Implementation of "Construction up to the Mountains" Strategy in Yunnan[J].Agricultural Science Technology,2014,15(10):1764-1766.
[16]Water Resources Department of Yunnan Province (云南省水利廳).Floods and droughts in Yunnan Province (云南水旱災(zāi)害)[M]. Floods and droughts in China (中國水旱災(zāi)害系列專著),1999.
Agricultural Science & Technology2015年5期