plants of Guizhou, karst desertification, and reforestation


books about Guizhou plants -《黔东南常见森林植物图谱》 Common Forest Plants from Southeast Guizhou Province, 2013 ;贵州植被 Vegetation of Guizhou, 1988;石阡县森林植物种质资源 forest plants of Shiqian County, Guizhou

 Also see:  Guizhou Plateau broadleaf and mixed forests – Encyclopedia of Earth, www.eoearth.org/view/article/152980
Vegetation in karst areas
The regional vegetation types in Guizhou karst plateau belong to subtropical evergreen broadleaf forest. Fagaceae, Theaceae and Lauraceae are the predominant vegetation. Besides, mountainous warm coniferous forest characterized by fir, Pinus massoniane, Pinus yunnanensis,conifer- broadleaf mixed forest predominated by pine, fir, polar and birch, deciduous broadleaf forest characterized by Liquidambar formosana, pollar, Batula lumilifera and the artificial and secondary bamboo forest are also widespread…However, except for Maolan Karst Forest Preserve in southeast Guizhou, the karst forests in Guizhou are mainly secondary forests, and the flora (fascicular) are simple.


Guizhou’s Ferns and Mosses 《贵州蕨类植物志》《贵州苔藓植物图志》


online photos of China’s plants  普蘭塔 www.planta.cn from http://www.planta.cn/forum/viewtopic.php?t=30207&sid=1b2ad8d69d0727896c374e558799f194
Also,  Nature Education Literature  家长环境教育图书推荐目录 [supplied by Katie Scott of NatureWize, a Guiyang nature education organization, www.en.naturewize.org,   katiescott@naturewize.org ]

《森林里最后一个孩子: 拯救自然缺失症儿童》
作者:(美)理查德•洛夫,王西敏 (合著者), 郝冰 (合著者), 自然之友 (译者)
出版社:湖南科学技术出版社; 第1版
出版年: 2010-4
Last Child in the Woods, Saving Our Children From Nature-Deficit Disorder
—Richard Louv

《与孩子共享自然》
作者: (美)约瑟夫・克奈尔
译者: 叶凡
出版社: 天津教育出版社
出版年: 2000-6
Sharing Nature with Children:
——Joseph Bharat Cornell

《中国鸟类野外手册》
作者: [英]约翰•马敬能 / 卡伦•菲利普斯
出版社: 湖南教育出版社
译者: 卢和芬/ 何芬奇/解焱
出版年: 2000年6月第一版
A Field Guide to the Birds of China
—-John Ramsay MacKinnon

《树:全世界500多种树木的彩色图鉴》
作者: (英)库姆斯
出版社: 中国友谊出版公司
译者: 猫头鹰出版社
出版年: 2005
Tree identification through colorful pictures of more than 500 species in the world
—Kums

《中国昆虫记Ⅱ》
作者: 李元胜
出版社: 上海社会科学院出版
出版年: 2004-5
The insects in China, II
—Yuansheng Li

《常见植物野外识别手册》
作者: 刘全儒/ 王辰
出版社: 重庆大学
出版年: 2007-3
The handbook of common plants identification
—Quanru Liu/Chen Wang

《常见昆虫野外识别手册》
作者: 张巍巍
出版社: 重庆大学
出版年: 2007-3.

list from http://en.wikipedia.org/wiki/Protected_areas_of_China, uploaded at http://www.flickr.com/photos/98531730@N02/10701866374/in/photostream

Fanjingshan National Nature Reserve is a treasure-house of plants and wildlife. The reserve is rich in plant resources and 80% of the conservation area is covered with virgin forest and other plants. There are about 795 families of plants and 1,955 species, including 14 families and 19 species of gymnosperms, 460 families and 1,155 species of spermatophytes and 123 families of fungi. Some plants are rare, such as the dove flowers which grow only in this region. Due to the influence of the sub-tropical alpine monsoon climate, the distribution of vegetation is vertically zonal. The plants vary from the evergreen broadleaf forest to deciduous trees.

The favorable climate and lush vegetation make the reserve an ideal habitat for wild fauna. The number of wild animal species identified and documented has reached over 800. The diversified fauna include 68 species of mammals, 191 species of birds, 41 species of reptiles and 34 species of amphibians, respectively accounting for 13.6%, 6.2%, 10.9% and 12.2% of the national total animal population. Among these species, some are rare and endangered. The Guizhou golden monkeys can be seen only in this region and are on the edge of extinction, hence a national treasure and protected species. Other species like clouded leopard, South China Tiger, pangolin and antelope are also important national protected animals.  (from http://www.chinesetimeschool.com/en-us/articles/fanjingshan-national-nature-reserve )

Karst rocky desertification around Guizhou Province

Expanding karst rocky desertification is shrinking living space and becomes the root of disaster and poverty in southwest China; it is especially true for Guizhou Province, which lies in the center of karst areas in the southwest. Karst rocky desertification, drought and water deficiency are the main environmental problems in karst areas in southwestern China.  (from http://www.karstdata.cn/messinfo.aspx?id=246 )
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In karst areas of Guizhou, the soils are discontinued, shallow and thin. The land surface and soils have poor capacity of storing water and usually are dry because of the quick and serious leakage of rain water. And the landforms are deep cut and steep. As a result, development of the regional forest is influenced, and a special karst forest vegetation is formed….Main causes of rock desertification:
Firstly, the pure limestone,well-developed joints and strong karstification result in little and thin soil and bare rocks:The Triassic limestone is very pure, with less than 1% unsoluble matters by acid, so the rock can not form abundant soils. Meanwhile, well-developed karst fissures and sinkholes are easy for serious loss and leakage of water and soil. These are the natural conditions of the rock desertification.
Secondly,a big population density of 135/km2 and lack of cultivated land result in the local farmers to cultivate mountain slopes and rock fissures in large area: The group has only 146 mu cultivated land, but 40% of them are in the rock fissures. Even a small patch of soil between rock or the rock fissure where can only plant one corn or potato is also fully used . The situation for long periods is inevitably leading to deterioration of ecology and rock desertification .
Thirdly, the vegetation grows slowly and has low ecological efficiency under cold plateau climate and fragile karst environments: Though the farmers have coals for fuels and do not cut the trees for firewood, as well as plant some trees on the hills, the trees grows slowly, and the forestation effects are bad under bare karst environments and cold climate in high elevation area. The annual mean temperature is 12℃.And there are 125 days in frost periods each year.
The development of agriculture and improvement of ecological environments in Mishuga have been paid attention by local governments. An important way will possibly be that, to change the way of the agriculture production, and transfer a lot of land which are used for provision crops now into a base to develop liana herbs, valuable grasses and good fruits in the future. ( from  http://www.karst.edu.cn/guidebook/guizhou.htm )


Reforestation Project in Guiyang, Guizhou – Increase in the amount of vegetation cover in the degraded mountains of Guiyang. Helped in the promotion of biological diversity of the area.  See: http://www.oisca-international.org/programs/environmental-conservation-program/china/oisca-reforestation-project-in-guiyang-guizhou/

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Reforesting rural lands in western China pays big dividends, Stanford researchers say

Planting trees instead of crops on sloping land helps prevent erosion from heavy rains, Stanford researchers find. And China’s attempt to find new jobs for displaced farmers is having some success.   (Stanford Report, May 11, 2011}

…”We can think of these life-support services as flowing from natural capital, like forests and wetlands, which provide very tangible, financially valuable services,” said Daily. “Forests soak up tremendous amounts of water, filter it and release it gradually into rivers and streams that we use for drinking water, hydroelectric power and growing crops.” In many ways, the environment can help mitigate damage from floods and even human disasters, like oil spills, she added.

China’s land conversion program has its roots in the late 1960s, when farmers in the mountainous western provinces began clearing vast stretches of land to make way for more crops. The increased agricultural production helped feed a growing nation but also set the scene for disaster. When record monsoon rains pelted the region in 1998, soil from the agricultural fields washed down the mountain slopes, killing thousands of people in the villages below.

The unprecedented damage caused by the floods prompted China to reconsider the wisdom of replacing forests with farms – especially in steeply sloping terrain. In 2000, the government launched a campaign to reforest the countryside and established several large-scale programs to help farmers in the western provinces find new work in surrounding cities…   (from http://news.stanford.edu/news/2011/may/reforesting-rural-china-051111.html )

from (from en.gygov.gov.cn/art/2010/10/15/art_15204_258101.html and en.gygov.gov.cn/art/2009/10/15/art_15204_258103.html)

karst geological formations: Those weird hills!

written about Guilin, but applies to Guizhou’s karst as well:   “Guilin’s most renowned feature is its dramatic karst terrain. Rising sharply at odd angles, limestone peaks look like giant teeth growing out of the green plain. Karst topography is characterized by many caverns and sinkholes that form by the dissolution of limestone or other carbonate rocks. Florida and Virginia’s Shenandoah Valley are good examples of where karst can be found in the United States. However, the topography looks completely different from that in China, thanks to conditions that exposed China’s karst and eroded its softer limestone faster. The specific conditions for forming the magnificent topography of Guilin “are fourfold,” according to Ray Beiersdorfer, a geologist at Youngstown State University in Ohio. “First, you need hard, compact carbonate rock. In Guilin, it’s Devonian limestone. Secondly, you need strong uplift, in this case provided by the collision of India with Asia to form the Himalaya. Third, you need a Monsoon climate of high moisture during the warmest season. Finally, the area must not have been scoured by glaciers, which this region wasn’t.”

Two types of karst landscapes predominate in Guilin: fenglin or peak forest (isolated towers) and fengcong or peak cluster (linked-base towers). The two types may have evolved sequentially from peak forest to peak cluster, or they may have evolved simultaneously. Beiersdorfer described this landscape, which he saw during a recent visit to China: “China in general and the Guilin area specifically boasts some of the most spectacular karst topography in the world.” ” (from www.geotimes.org/apr07/article.html?id=Travels0407.html )

Karst
Huge areas of China’s Southwest comprise visually spectacular landscapes featuring karst – weathered limestone formations. In China, limestone has been created from fossilized prehistoric sea floor sediments, brought to the surface by geological upheavals. The exposed alkaline limestone is then eroded by naturally-occurring acidic rain. Above ground, this results in anything from closely packed “stone forests,” poking a few meters skywards, to the huge conical hills covering half of Guizhou, and the tall, elegant pinnacles around Guilin. Underground, percolating water and subterranean rivers carve out long, interlinked caverns, hung with oddly shaped rock formations.
Karst formation
Southwest China’s thick and fractured pure limestone has led to a dramatically eroded landscape. The warm wet climate speeds up the weathering of limestone by acid rainwater and chemicals in rotting plants.
1. Surface streams lose water to cave systems developing in the limestone. Surface drainage is diverted down sink holes to below the water table.
Karst landscape
This cut-away artwork shows an idealized karst landscape, with all the features shown together. Karst topographies usually have a thick layer of cave-ridden limestone, and then, depending on the area’s geology and the age of the formation, a few of the features shown here.
Fenglin karst, which translates as peak-forest karst, is characterized by peaks that rise near vertically, like trees, 100 to 250 feet (30 to 80 m) above the surrounding flat floodplains. These dramatic tower-like karsts are found in and around the city of Guilin.
1. Surface streams lose water to cave systems developing in the limestone. Surface drainage is diverted down sink holes to below the water table.2. Peaks develop from the land left after erosion by the streams. The cave system gets larger as fast-moving subsurface streams bore through the limestone, and the water table drops.3. Much of the limestone has eroded past the caves down to a layer of shale. Limestone peaks remain, many fractured with small, waterless caves.
Caves that open out into large halls filled with stunning limestone formations are found throughout karst areas. Minerals deposited by losing streams and water drainage create the strange shapes.
Fengcong karst, or peak-cluster karst, differ from the straight-sided fenglin. Their peaks are more cone-shaped and one hill meets the next across a depression or doline. Superb fengcong landscape can be seen near the small town of Xingping.
The Li River cuts through an impressive variety of karst hills. Cruises start in Guilin with fenglin, which gradually give way to dense fengcong.
Stone forests, such as Shi Lin outside Kunming, are karst formations created by the retreating waters of ancient seas, and wind and rain erosion.
Fenglin karst, which translates as peak-forest karst, is characterized by peaks that rise near vertically, like trees, 100 to 250 feet (30 to 80 m) above the surrounding flat floodplains. These dramatic tower-like karsts are found in and around the city of Guilin.
Caves that open out into large halls filled with stunning limestone formations are found throughout karst areas. Minerals deposited by losing streams and water drainage create the strange shapes.
Fengcong karst, or peak-cluster karst, differ from the straight-sided fenglin. Their peaks are more cone-shaped and one hill meets the next across a depression or doline. Superb fengcong landscape can be seen near the small town of Xingping.
The Li River cuts through an impressive variety of karst hills. Cruises start in Guilin with fenglin, which gradually give way to dense fengcong.    from (http://www.chinaspree.com/china-travel-guide/china-guizhou-guangxi-tours.html )

images uploaded at: http://www.flickr.com/photos/98531730@N02/9455307987/in/set-72157634969798328 and http://www.flickr.com/photos/98531730@N02/9458080460/in/set-72157634969798328/