In view of the current situation and environmental fragility of karst depression in Guizhou,the study proposed measures to utilize and explore it so as to promote economic development of Guizhou depression.
On the basis of combining landscape planning theories and rock desertification,this study analyzed and sorted out types of rock desertification landscapes,major rehabilitation models for the rock desertification rehab...On the basis of combining landscape planning theories and rock desertification,this study analyzed and sorted out types of rock desertification landscapes,major rehabilitation models for the rock desertification rehabilitation landscapes,landscape representatives,and their socio-economic benefits.展开更多
THE stable carbon isotopic composition of soil organic carbon is a powerful tool for discussing the source ofsoil CO<sub>2</sub> and the relationship of CO<sub>2</sub> source and sink between s...THE stable carbon isotopic composition of soil organic carbon is a powerful tool for discussing the source ofsoil CO<sub>2</sub> and the relationship of CO<sub>2</sub> source and sink between soil CO<sub>2</sub> and atmosphere CO<sub>2</sub> and has beenwidely studied. However, few similar researches have been done in karst area which comprises 15%global terrestrial area. Preliminary research results about the stable carbon isotopic composition of soil organic carbon in karst area are reported here. In April and August 1998, the samples were collected continuously at 5-cm intervals from 0 to -45cm depth in meadow soil profile described by Zheng and located in the Hongfong Lake area in the central Guizhou Plateau which lies in the central East-Asia karst area. CO<sub>2</sub> for δ<sup>13</sup> C analysis was prepared展开更多
基金Supported by Funds of Rocky Desertification Control Administration Center of Bijie District in Guizhou Province~~
文摘In view of the current situation and environmental fragility of karst depression in Guizhou,the study proposed measures to utilize and explore it so as to promote economic development of Guizhou depression.
基金Sponsored by Key Science and Technology Support Program of National "Twelfth Five-year Plan"(2011BAC09B01)Pioneer Tree Species Investigation in Rock desertification Area
文摘On the basis of combining landscape planning theories and rock desertification,this study analyzed and sorted out types of rock desertification landscapes,major rehabilitation models for the rock desertification rehabilitation landscapes,landscape representatives,and their socio-economic benefits.
文摘THE stable carbon isotopic composition of soil organic carbon is a powerful tool for discussing the source ofsoil CO<sub>2</sub> and the relationship of CO<sub>2</sub> source and sink between soil CO<sub>2</sub> and atmosphere CO<sub>2</sub> and has beenwidely studied. However, few similar researches have been done in karst area which comprises 15%global terrestrial area. Preliminary research results about the stable carbon isotopic composition of soil organic carbon in karst area are reported here. In April and August 1998, the samples were collected continuously at 5-cm intervals from 0 to -45cm depth in meadow soil profile described by Zheng and located in the Hongfong Lake area in the central Guizhou Plateau which lies in the central East-Asia karst area. CO<sub>2</sub> for δ<sup>13</sup> C analysis was prepared