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共检索到26条 ,权限内显示50条;
Mauritius Hemp [Furcraea Foetida] field, Malawi, ca.1911
- 负责人：
- 关键词：
- Croplands agriculture farming
- DOI：
- doi:10.25549/impa-c123-79835
- 摘要：
- e cloud covered mountains in the distance. The photograph has been taken by an A. J. Storey, who worked on developing crops with good yields. ? From a Photograph
Data from: Diversity and composition of tropical butterflies along an Afromontane agricultural gradient in the Jimma Highlands, Ethiopia
- 负责人：
- DOI：
- doi:10.5061/dryad.nc95n
- 摘要：
- forest (SMCF), exotic timber plantations, open woodland, croplands and pasture. Surveys were conducted in 29 one-hectare plots and repeated five times bet
Data from: Ecosystem carbon exchange on conversion of Conservation Reserve Program grasslands to annual and perennial cropping systems
- 负责人：
- Abraha, Michael
- 关键词：
- Eddy Covariance Net ecosystem exchange Land use change Corn Switchgrass Restored prairie Climate change mitigation
- DOI：
- doi:10.5061/dryad.sc41rn3
- 摘要：
- type and management in agricultural ecosystem C balance. Results suggest that converting croplands to grasslands results in immediate C gains whereas converting
Coffee crops, Livingstonia, Malawi, ca.1903
- 负责人：
- DOI：
- doi:10.25549/impa-c123-80302
- 摘要：
- of the Livingstonia Mission and a major financial contributor. A number of attempts were made to grow cash crops at the Institution. ? Album containing photographs
Data from: The biodiversity benefit of native forests and mixed-species plantations over monoculture plantations
- 负责人：
- 关键词：
- Metabarcoding;biodiversity;Grain for Green Program;Arthropoda;China;reforestation;Forest management
- DOI：
- doi:10.5061/dryad.70c92t2
- 摘要：
- Methods: We sampled arthropod communities using pan traps in the land-cover types concerned under the GFGP. These land-use types include croplands
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.2
- 摘要：
- harvested yield, as recorded in national agricultural statistics. The magnitudes and inter-annual variations in NPP of croplands in the US Mid-West were estimated
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.8
- 摘要：
- harvested yield, as recorded in national agricultural statistics. The magnitudes and inter-annual variations in NPP of croplands in the US Mid-West were estimated
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.1
- 摘要：
- harvested yield, as recorded in national agricultural statistics. The magnitudes and inter-annual variations in NPP of croplands in the US Mid-West were estimated
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.6
- 摘要：
- harvested yield, as recorded in national agricultural statistics. The magnitudes and inter-annual variations in NPP of croplands in the US Mid-West were estimated
NPP Cropland: Gridded Estimates for the Central U.S.A., 1982-1996
- 负责人：
- DOI：
- doi:10.5063/aa/nceas.184.7
- 摘要：
- harvested yield, as recorded in national agricultural statistics. The magnitudes and inter-annual variations in NPP of croplands in the US Mid-West were estimated
