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Sampling of earthworm populations during 5- and 15-yr-old cropping phases and in 5-, 10- and 15-yr-old fallow phases of shifting agriculture at Shillo...
Read moreThe dispersion, biomass and population structure of the semi-desert shrub Zygophyllum eurypterum were measured in a 1-ha sample of the Turan Biosphere...
Read moreCollembola and Acarina populations were sampled over two years from sites fertilized with three levels of superphosphate (0, 190, 380 kg ha-1yr-1) and...
Read moreTo improve the advice on the suitability of different types of small sewage discharges (SSDs) such as those from package treatment plants and septic t...
Read moreThe following is based largely on the author's summary. The insect communities on vegetation in a mixed hedgerow and in neighbouring fields of pasture...
Read moreMacrophyte abundance scores derived from percentage frequencies from permanent transects in four rivers were subjected to DECORANA and TWINSPAN multiv...
Read moreIn this technique the roots are laid out on a flat surface and a count is made of the number of intersections between the roots and random straight li...
Read moreThe weed seed populations built up in the top 6 in. of soil in land on which vegetable crops have been grown for long periods, was estimated from soil...
Read moreThe following is virtually the authors' summary. An account is given of a modified Robinson-type light-trap [cf. RAE A 43 169] for segregating samples...
Read moreA classification system for the land-use survey to be conducted as a basis for management planning in the Luangwa Valley is described. The classificat...
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