Showing 1 - 10 of 50
Land-use change in upper catchments impact downstream water flows. As trees use large amounts of water the expansion of upstream plantations can substantially reduce water availability to downstream users. There can also be impacts on downstream salinity due to reduced dilution flows. In some...
Persistent link: https://www.econbiz.de/10005807490
As the greatest rainwater users among all vegetative land covers, tree plantations have been employed strategically to mitigate salinity and water-logging problems. However, large-scale commercial tree plantations in high rainfall areas reduce fresh water inflows to river systems supporting...
Persistent link: https://www.econbiz.de/10008874633
This study analyses the financial risk faced by representative mixed-enterprise farm businesses in four regions of south-eastern Australia. It uses discrete stochastic programming to optimise the ten-year cash flow margins produced by these farms operating three different farming systems. Monte...
Persistent link: https://www.econbiz.de/10008874634
Land managers in upper catchments are being asked to make expensive changes in land use, such as by planting trees, to attain environmental service targets, including reduced salt loads in rivers, to meet needs of downstream towns, farms and natural habitats. End-of-valley targets for salt loads...
Persistent link: https://www.econbiz.de/10009398561
This article reports on a study of the impact of risk on farm management practices in northern Syria, focusing particularly on how these are affected by risk aversion and farm size. The study is based on production data from an eight‐year field trial and on prices from market surveys. A large...
Persistent link: https://www.econbiz.de/10009398793
Based on the timing and location of 400 successful releases of insects specifically targeting Echium species of weeds including PatersonÕs curse / ÒSalvation JaneÓ since 1992 across southern Australia, and estimates of insect attack and spread rates according to dates of weed germination, a...
Persistent link: https://www.econbiz.de/10011070148
Herbicide labels recommend sufficiently large doses to achieve high efficacy of weed control under a range of environmental conditions. While users may not apply doses greater than recommended they may apply less, but do so without quantitative guidance. This paper explores long-run biological...
Persistent link: https://www.econbiz.de/10011070151
This study analyses the financial risk faced by representative mixed-enterprise farm businesses in four regions of south-eastern Australia. It uses discrete stochastic programming to optimise the ten-year cash flow margins produced by these farms, operating three alternative farming systems....
Persistent link: https://www.econbiz.de/10009653508
Persistent link: https://www.econbiz.de/10010833697
Tedera (Bituminaria bituminosa C.H.Stirt var. albomarginata) is a drought tolerant perennial legume originating in the Canary Islands. This study evaluates the potential role and value of tedera in dryland mixed crop and sheep production systems in southern Australia. Regional variants of the...
Persistent link: https://www.econbiz.de/10010915527