3DONATH T W,ECKSTEIN R L. Effects of bryophytes and grass litter on seedling emergence vary by vertical seed position and seed size[J].Plant Ecology,2010,(207):257-268.
4ZHOU Q.Analysis of carbon trading system[].Legal System and Society.2010
5RHETT BUTLER.Amazon rainforest facing crisis,Globalization is expected to problem-solving. http: / /cn. mongabay. com/news /2007 /2007 _0604 nepstad _interview. html . 2007
6ZENG S,LIN Y.The first carbon fund set up in Guangdong[].Yangcheng Evening News.2011
7CHEN XC.Translate ecosystem services into carbon sequestration benefits[].First Financial Daily.2010